Full text of "British progress in pumps and pumping engines"

NATIONAL

ENGINEERINCx

AND

tiIade lectures

BRITISH PROGRESS

PUMPS AND

I'tfMPING ENGINES

BJORLING

BOUGHT WITH THE INCOME
FROM THE

SAGE ENDOWMENT FUND

THE GIFT OF

Hcnrg m. Sage

1891

:2ozfor ^iZ-^Mo/q

Cornell University Library

TJ 900.B62
British progress in pumps and pumping en

3 1924 004 678 235

1^2

Cornell University
Library

The original of this book is in
the Cornell University Library.

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BRITISH PROGRESS IN PUMPS
AND PUMPING ENGINES

VOL. II.

- ' 5 v'

NATIONAL ENGINEERING
AND TRADE LECTURES

ASSISTED BY THE BOARD OF TRADE, COLONIAL AND FOREIGN

OFFICES, COLONIAL GOVERNMENTS, AND LEADING

TECHNICAL AND TRADE INSTITUTIONS

Edited by BEN H. MORGAN
VOLUME II

British Progress in Pumps
and Pumping Engines

PHILIP R. BJORLING

Consulting Engineer, Author of " Piimp^ and Pumps Motors :"
"Pumps: their Construction cuid Management," etc.

WITH NUMEROUS ILLUSTRATIONS AND A DIRECTORY AND CLASSIFIED LIST OF
PUMPS AND PUMPING ENGINES IN GREAT BRITAIN

JI/ rights reserved

LONDON

ARCHIBALD CONSTABLE &= CO Ltd

^ 1 6 JAMES STREET HAYMARKET

1905

/ ' LER & TANNEK,

Butler & Tanner.
THE selwood Printing Works,

FROME, AND LONDON.

CONTENTS

PAGE

INTRODUCTION, DEFINITION AND SCOPE OF LECTURE
PUMPS WORKED BY HAND 7

" Dando " diaphragm pump — Odourless pump.

PUMPS DRIVEN BY WATER-POWER .... 8

Henry Davey, for Miike Mines, Japan — Undershot water-wheel
Duplex hydraulic underground pumping engine by Hathorn,
Davey & Co., and single-acting plunger pump by E. and H.
Roberts — Double set of plunger pumps and undershot water-
wheel by E. and H. Roberts.

WIND-POWER PUMPS

Solid-wheel wind engine by E. and H. Roberts — Syphon
pump by E. and H. Roberts — Quadruple semi-rotary pump by
Duke & Ockenden — Sectional- wheel wind engine by John
Wallis Titt — Differential or bucket-and-plunger pump by John
WaUis Titt — Dash wheel by John Wallis Titt — Simplex geared
wind engine by John WaUis Titt.

GAS AND OIL ENGINE PUMPS 18

Gas engine and vertical two-throw plunger pumps by Crossley
Bros. — Horizontal engine and vertical single-acting plunger
pumps by Crossley Bros. — Vertical engine and single-acting
vertical plunger pump by Crossley Bros. — Horizontal engine
and centrifugal pump by Crossley Bros. — Oil engine and pump
combined by James B. Petter — Engine and pump combined by
Richard Homsby & Sons — Grantham Waterworks pumping
engine by Richard Homsby & Sons — Horizontal oil engine and
pumps by Ruston, Proctor & Co. — Horizontal oil engine and
vertical three-throw pumps by Ruston, Proctor & Co. — Oil
engine and centrifugal pumps by Ruston, Proctor & Co.

CONTENTS

PAGE

HOT AIR PUMPS 23

Rider's Hot Air Engine and Pump by Hayward-Tyler & Co.

COMPRESSED AIR PUMPS 24

Pulsating steam pump — Air-lift pumps.

ELECTRICALLY-DRIVEN PUMPS 27

Centrifugal Pumps, driven direct : High-lift centrifugal pump
and electric motor by Mather & Piatt, for Menange Water-
works, Sydney ......... 27

Pumps driven hy Single Gearing : Vertical three-throw air
pumps, " Edwards " type — Centrifugal pump and set of
vertical three-throw plunger pumps by Hayward-Tyler & Co.,
for War Office for Generating Station at Aldershot . . 29

Pumps Driven hy Double Gearing : Low-lift pumps and
electric motor by E. Scott & Mountain — Portable three-throw
vertical pumps and motor by E. Scott & Mountain — Three-
throw boiler-feed pumps by Hayward-Tyler & Co., for South
Wales Distributing Co., Pontypridd ..... 29

Pumps Driven by Treble Gearing : Two sets of horizontal
three-throw plunger pumps, driven by electric motor, by
Hathorn, Davey & Co. ....... 31

Pumps Driven by Belt : Combined electric motor and three-
throw plunger pumps, by Sandycroft Foundry and Engine
Works Co. .........

" Riedler " pump, driven by single reduction gear, by Eraser
& Chalmers — "Riedler" differential plunger-and-plunger
pump by Eraser & Chalmers ...... 32

Electrically-Driven Sinking Pitmp by Sandycroft Foundry
and Engine Works Co. ....... 32

Three-throw electrically-driven plunger pumps by P. R.
Jackson — Vertical three-throw plunger pumps, driven by
electric motor, by Andrew Barclay, Sons & Co. — Horizontal
three-throw pumps by Andrew Barclay, Sons & Co. . . 33

CONTENTS

PAGE

STEAM PRESSURE PUMPS 34

1. Direct-acting Steam Pumping Engines

(a) Single Cylinder or Simplex : Steam fire engine, for large
factories, by Hayward-Tyler & Co.— Steam pump for collieries,
of the " Niagara " type, by Hayward-Tyler & Co.—" Denaby "
sinking pump by W. H. Bailey—" Weir " patent direct-acting
feed pump by G. and J. Weir — Vertical tandem compound feed
pump by G. and J. Weir — Independent direct-acting high-
pressure feed pump by Clarke, Chapman & Co.— Compound
feed pump by Clarke, Chapman & Co.— Horizontal direct-
acting feed pump by Clarke, Chapman & Co.— Of&cial test of
Clarke-Chapman tandem compound direct-acting feed pump,
Woodeson's patent — Vertical direct-acting compound type
feedpump by J. P. Hall & Sons 35

(b) Duplex Pumps : Vertical duplex single cylinder boiler-
feed pump by J. H. Carruthers & Co.— Vertical compound
duplex boiler-feed pump by J. H. Carruthers & Co. — Com-
bined vertical low-service duplex steam pump, vertical boiler
and vertical duplex feed-pump by J. H. Carruthers & Co.- —
Reading Waterworks triple-expansion high- duty surface con-
densing Worthington pumping plant by James Simpson & Co.
— Frimley and Farnboro' Waterworks, Itchell Well, triple-
expansion horizontal surface condensing Worthington pumping
engine by James Simpson ....... 42

2. Rotative Steam Pumping Engines

Bore-hole pumping engine by Hathorn, Davey & Co., for
Kesleven Asylum — Pumping engine for Leicester Corporation
Waterworks by Hayward-Tyler & Co. — " Invincible " centri-
fugal steam driven pump by Gwynnes, Ltd. — Powell Duffryn
cross compound " Riedler " pumping engine by Eraser & Chal-
mers — Cross compound " Reidler " pumping engine by Eraser
& Chalmers, for Rockhampton Waterworks, Queensland —
" Edwards" air pump by Edwards' Air Pump Syndicate —
Barnet Waterworks machinery, James Simpson & Co. — Single-
acting deep-well pump by Mather & Piatt — Triple-expansion
pumping engine by Hathorn, Davey & Co., for Leeds City
Waterworks — Test of Leeds engines by Professor W. Cawthorn
Unwin — Deep-well pump by Herbert Ashley — Three-throw
pumps and undertype engine by Hayward-Tyler & Robey,

vii

CONTENTS

PAGE

Ltd. — Warrington Watem-orks, Delph Lane pumping station
engines by James Simpson & Co. — Trent Valley Station, South
Staffordshire Waterworks, by Hathorn, Davey & Co. — ^Test
of above engine by A. E. Douglas — Pumping machinery by
Ha3rward-Tyler & Co., for War Office, for water supply of
hutments in Pretoria — Double cylinder rotary pump by
Dnmi Engineering Co. — Leicester Corporation Waterworks
pumping engine at Swithland Reservoir Pumping Station by
Combe Barbour — Pumping engine for Nottingham Corpora-
tion, for the Boughton Pumping Station, by Combe Barbour
— Engine for Gainsborough Urban District Council by Combe
Barbour — Ashley concertina-pump — Pumping engine for the
East London Waterworks Co. by Combe Barbour . . 46

3. Pulsating Steam Pumps

Pulsometer by Pulsometer Engineering Co. — Pulsometer
and vertical boiler on wheels by Pulsometer Engineering Co.
— Pulsometer in a lead mine by Pulsometer Engineering Co. —
Pulsating steam pump by Waterspout Engineering Co. . 66

4. Rope and Belt-driven Pumps

Rope-driven high-lift pumps by E. Scott & Mountain —
Belt-driven pump, with variable stroke, by Hayward-Tyler
& Co. — Haste " Inertia" pump by Haste Pump Co . .69

Directory of Manufacturers of Pumps and Pumping
Engines in Great Britain ...... 72

Vlll

LIST OF ILLUSTRATIONS

Following
text.

Fig. I Sectional elevation of the " Dando " Diaphram Pump

2 The Forcing " Dando " Pump .....

3 " Dando " Pump for working by pulley or hand- wheel

4 Duplex Hydrauhc Underground Pumping Engine

5 Undershot Water Wheel actuating a pair of single-acting

Plunger Pumps .......

,, 6 SoUd Wheel Wind Pumping Engine ....

7 L-Bobs as used to connect Wind Motors to Wells when
latter are not directly underneath ....

,, 8 Sectional elevation of Syphon Pump as recommended for use
with Wind Engines ......

,, 9 Quadruple Semi-Rotary Pump for Irrigating and Land

Reclaiming Purposes (jTransverse Section).
,, 10 Ditto (Longitudinal Section) ......

1 1 Sectional Wheel Wind Engine actuating a set of Three-throw

Pumps ........

12 Differential Bucket-and- Plunger Pump as used with above

engine when placed directly over well

13 Large Pumping Plant for raising Sea- water for Distribution

in Vaporizing Beds for the production of Salt. Diameter
of wind wheel 37 ft. 6 in. .

14 Two-Throw Plunger Pumps driven by a " Crossley " Gas

Engine ........

15 Gas Engine-driven Pump designed for Domestic Water Supply

16 Single-acting Plunger Pump actuated by Vertical Gas Engine

17 Gas Engine Driving Centrifugal Pump directly connected to

Crank Shaft ........

18 Single-acting Plunger Pump driven by a " Patter " Oil

Engine .........

19 Plunger Pump driven by a " Homsby " Oil Engine.

„ 20 42J B.H.P. "Homsby " Oil Engine driving Three-throw
Pumps at the Grantham Water Works

„ 21 " Ruston " Oil Engine driving a set of Vertical Three-throw
Trunk Plunger Pumps .....

LIST OF ILLUSTRATIONS

Folloiinng
text.

Fig. 22 " Ruston " Oil Engine driving Two-lift Centrifugal Pumps
23 " Rider's " Hot Air Engine and Pump ....
,, 24 Gwynne's " Invincible " Centrifugal Compound Pressure
Pump driven by Electric Motor ....

25 Mather and Piatt's High-lift Centrifugal Pump directly driven

by Electric Motor .... ...

26 Three-throw Edwards' Air Pump electrically driven by sin-

gle gearing

27 Motor-driven Three-throw Low Lift Pump with single Gear

Drive ........

28 Sectional elevation of above Pump .....
,, 29 Portable Three-throw Vertical Pump and Projected Type

Motor

,, 30 Electrically driven Three-throw Boiler Feed Pumps .

,, 31 Horizontal Three-throw Plunger Pumps electrically driven
\>y Treble Gearing .......

,, 32 Three-throw Plunger Pumps electrically driven by Belt
Drive ........

,, 33 Small-sized " Riedler " Pump connected to Electric JMotor

,, 34 End View of Ditto ........

„ 35 Sectional view of a " Riedler " Pump built on the " Differ-
ential " principle ........

,, 36 An electrically driven Sinking-Pump . . . . ,

„ 37 Three-throw Pumps, electrically driven by Double Reduction

Gearing .........

.. 39

,. '^o'

,, 41 A set of electrically driven Three-throw Pumps

,, 42 Steam Fire Engine for large factories

„ 43 Elevation and plan of " Niagara " Type Steam Pump for
Colliery work ......

44 The " Denaby " Sinking Pump (Sectional view) .

,, 45 Ditto (Outside view) ......

46 Weir's Direct-acting Boiler Feed Pump .

,, 47 Weir Tandem Compound Feed Pump

„ 48 Independent Direct-acting High-pressure Feed Pump

49 Tandem Compound Slow Speed Direct-acting Feed Pump

[-Clarke-Chapman Horizontal Direct-acting Feed Pump
,. SI-*

,, 52 Hall and Sons' Compound Direct-acting Boiler Feed Pump
,, 53 Perspective view of Hall and Sons' Feed Pump .

54 Vertical Duplex Single Cylinder Boiler Feed Pump .

55 Carruthers' Vertical Compound Boiler Feed Pump .

Set of Vertical Three-throw Plunger Pumps electri
cally driven by Worm Gearing ....

LIST OF ILLUSTRATIONS

Follo-win^
text.

fitted with

Fig. 56 Combination of Vertical Lo\v-Ser\dce Duplex Pump, Steam

Boiler and Duplex Boiler Feed Pump

57 Combination of Steam Boiler and Duplex Steam Pump

,, 58 Proposed Worthington Pumping Engine (Sectional elevation)

,, 59 Ditto (General elevation)

,, 60 Borehole Steam Pump— Beam Type

61 Vertical Flywheel Steam Pumping Engine

,, 63 Gwynne's Steam-driven Centrifugal Pump

63 Eraser and Chalmers' Cross Compound Pumping Engine fitted
with Riedler Pumps

,, 64 Sectional elevation of Riedler Pumps

„ 65 View showing Valve Parts as Assembled .

,, 66 Eraser and Chalmers' Cross Compound Engine
Double-acting Plunger Pump

„ 67 Sectional elevation of Edwards' Air Pump

,, 68 Horizontal Tandem Surface Condensing Engine and High-
lift Pumps by Messrs. James Simpson and Co.

„ 69 Mather and Piatt's Single-acting Deep Lift Pump

,, 70 Triple-expansion Pumping Engine at the Leeds City Water
Works .........

,, 71 The "Ashley" Deep Well Pump .....

,, 72 Pumping set of Three-throw Plunger Pumps, Loco Boiler and
Undertype Jet Condensing Engines ....

,, 73 Triple-expansion Surface Condensing Receiver Engine with
Deep Well and Surface Pumps by Messrs. James Simp-
son and Co., Ltd., London .....
74 High Pressure, Jet Condensing Flywheel Pumping Engine .

,, 75 Triple-expansion Pumping Engine at the Trent Valley Pump-
ing Station ........

,, 76 Compound Surface Condensing Engine and Treble-barrel
Force Pumps .......

,, -j-j Cross Section of Double Cylinder Rotary Pump

,, 78 Double CyUnder Rotary " Drum " Pump

79 Triple-e.xpansion Pumping Engines at the Leicester Corpora-
tion Water Works .......

,, 80 Triple-expansion Pumping Engine at the Nottingham Cor-
poration Waterworks ....••

81 Plunger Pumps at the Nottingham Corporation Water

Works ......•■•

82 Vertical Compound Pumping Engines working two " Ashley "

Deep Well Pumps ......

83 The " Ashley Concertina " Deep Well Pump .

„ 84 Pumping Engine and Gear for East London Water Works .
,, 85 Sectional view of the Pulsometer Steam Pump

LIST OF ILLUSTRATIONS

text.

Fig. 86 Portable Pulsometer Pump and Boiler

,, 87 View showing Pulsometer Pump working in a Tin Mine

88 The " Waterspout " Pulsating Steam Pump

,, 89 The " Waterspout " Pump (Valve and Valve Chest) .

,, 90 (End view of Valve Chest) .....

,. 91 High Lift Pump, 200 to 600 feet head, fitted with rope
pulley ........

„ 92 The "Haste" Patent Pump

,, 93 Belt-driven "Haste" Inertia Pump.

Introduction

'TT^HE design and construction of pumping and hydraulic
machinery is one of the most important branches
of mechanical engineering. It would be difficult to mention
a mechanical industry which is independent of pumps
and hydraulic apparatus. Without this class of machinery
the mining, whether of coal or other minerals, would be at
a standstill. It were needless to expatiate on the large
part which pumps play in waterworks, sewage farms
and in the irrigation of land. Pumping appliances are
indispensable in the plant of bleaching works, dye works
and paper mills. No user of steam could dispense with
feed pumps.

The motive power of pumps must necessarily vary with
the local conditions under which they are installed ; in
some cases, it must be confessed, the crude ideas of the
engineer in charge of the works, rather than well defined
principles, govern the details of installations.

Many factors enter into the choice of a pump and
pumping engine, and in all cases the advice of an expert
in hydrauhc machinery should be sought. In the Colonies
and in locaUties where workshops are not, and skilled
labourers scarce : in a word, wherever breakdowns are to

VOL. II. I B

] PROGRESS IN PUMPS AND ENGINES

be dreaded, the utmost simplicity of construction is essen-
tial. On the other hand, where there are ample facilities
for repair, and where trained engine minders are available,
fuel may be dear. In such a case an economical consump-
tion of fuel is a prime necessity, and it is to be regretted
that hitherto engineers have been unable to attain absolute
simplicity of construction with pumping engines of this
type.

In dealing with small quantities of water, the hand
pump is no doubt the simplest, handiest and cheapest
appliance available. Such a pump can be operated by
lever or levers, by cranks and hand wheels, or by crank
handles.

Where there is a plentiful supply of water, a natural
and cheap source of power is available ; in some cases
the user of water power has to pay nothing at aU. Under
a low fall, or in the case of a rapid stream, a water wheel
should be installed ; under a moderately high fall a turbine
wiU usually give the best result. In the case of a very high
fall or where water can be used under high pressure, " per-
cussion " wheels, sometimes known as " Pelton " wheels,
or hydraulic or water-pressure engines, are the most suit-
able forms of motor. It is an objection to fast-running
motors that the speed must be reduced by gears or by
belting ; the former are liable to breakdowns, while the
latter are apt to slip. In both cases there is a loss of effi-
ciency.

In the case of small pumping plants, where good
storage tanks or reservoirs can be constructed at a reasonable
cost, "wind-engines" may be used to advantage; the

INTRODUCTION

working charges would be reduced to lubrication once a
week, with a periodical overhauling of the punnps and
pipes to test the soundness of all joints and the conditions
of the packings.

Where little power is required, hot air engines are
quite in place ; for powers up to about i horse-power, they
are very economical and require but moderate attention.
Such motors would often prove the best in country man-
sions, in farms and under similar conditions.

Compressed air is a valuable source of motor power.
It can be carried in pipes for considerable distances with-
out appreciable loss of pressure, always provided that the
air compressor is of the right design and construction ;
otherwise the loss of power and the cost of compression
are apt to be very heavy.

Electric motors are coming more and more to the front
for pumping purposes, but an essential condition for the
use of such power is this, that current is available at a
reasonable cost. The advantages under suitable condi-
tions of electricity are obvious. It is always ready ; no
time is lost in starting ; there is no condensation of steam.
No doubt users of electric power have their own troubles.
If the diameter of the cable be too small, or if there are too
few strands, there will be a very sensible loss of power, while
with too large a cable the first cost will be excessive. But
if a cable of suitable diameter be selected, the waste of
power will be trifling. Where an electric motor is used
three-throw single-acting pumps are the best, as these
give a more even distribution of power, which is essential
in electric driving.

PROGRESS IN PUMPS AND ENGINES

Where fuel is readily available and considerable power
is required, steam is and remains the best source of power.
Engines for large pumping plants should be of the most
approved design, constructed with a view to the utmost
efficiency and economy. In the boiler too, economy must
be carefully studied. The use of a wasteful boiler or boilers
has often been the cause of serious loss in the working of a
pumping plant. The selection of a boiler must be governed
to a great extent by the route it has to traverse. If the
boiler be taken by rail right up or near to its destination, or
even if it can be carried over good roads, its type is a matter
of minor importance, but where transport is difficult the
sectional water-tube boiler is to be preferred.

The exact type of pumping engine cannot be decided
on abstract principles. The engineer must be guided
by the conditions of each case. The depth of the well or
the source of water ; the height at which the pumps
have to be installed above the water level; the volume
of water and the height to which it has to be raised ; the
economy desired in the plant ; the distance through which
the water has to be forced ; these are one and all essential
factors in the problem.

By the above conditions the engineer must also be
governed in the choice of the pumps, with two additional
considerations which are of great importance ; namely,
the nature and condition of the water. For sandy, gritty
or muddy water, plunger pumps are by far preferable,
because neither by grit, sand nor mud is the plunger
affected. The piston or bucket packings will, however,
wear more or less rapidly, relatively to the amount of

INTRODUCTION

impurities contained in the liquid. Plunger pumps are
also suitable for an acidulated or saline water, because the
lubrication will prolong the plunger's life.

Centrifugal pumps are well adapted for low-lifts and
large volumes of water. As they are not easily choked they
are suitable for dredging gold sand or for raising slime.

Strength is an all important factor in the construction
of a pump, and an ample supply and proper distribution
of metal is an essential condition of good design. This is
a strong point with British pump makers. Many foreign
engineers are either too sparing of metal or fail to put it
in the right place. Buyers of pumps should beware of
judging by appearances. Efficiency has too often been
sacrificed to symmetry, in the quest for which many an
otherwise good pump has been spoiled. By all means let
the engineer turn out a finished article, but first and fore-
most let him ensure the utmost attainable simplicity of
construction and working efficiency. After all, a pohshed
exterior is of much less consequence than sound and well
finished working parts. Polish is not so essential as the
strength of the original surface of the metal, and especially
of the castings, for the surface is the strongest part of the
metal. Far more important than mere exterior polish
and burnish are fine smooth and even surfaces to the
cylinders, steam and water valves. The roughness of the
surface is of small moment compared with true and smooth
working parts.

I propose to illustrate and describe a number of differ-
ent kinds of pumps and pumping engines made by some
of the most eminent firms in Great Britain, pointing out

PROGRESS IN PUMPS AND ENGINES

by the way, such features as should be kept carefully
in view by buyers and users of this kind of machinery.
Pumps may be divided into the following classes —

1. Pumps worked by hand.

2. Pumps driven by water power.

3. Wind power pumps.

4. Gas and oil engine pumps.

5. Hot air pumps.

6. Compressed air pumps.

7. Electrically driven pumps.

8. Steam pressure pumps.

I. Pumps Worked by Hand

The common hand pumps are worked by a lever arrange-
ment in different ways, to suit circumstances, such as
the quantity of water required and the depth of the
well.

For deep wells three-throw pumps are the best, but for
bore holes the single-acting bucket pump, the bucket-and-
plunger, and the " Ashley " pump must be recommended.

The " Dando " diaphragm pump, manufactured by
Messrs. Duke and Ockenden, of Littlehampton, England,
is shown in sectional elevation, Fig. i, and perspective
view of the " Odourless Dando " type in Fig. 2. This
pump is worthy of special notice, and its work will readily
be understood by reference to Fig. i. ^ is the suction
valve, B the pump chamber, C the diaphragm, made of
indiarubber, in the centre of which is arranged the de-
livery valve D. The diaphragm is deflected by means
of the two bolts, E and E, secured to the cross-head F,
and pump lever G. H is the delivery spout, the diaphragm
being held between that and the pump chamber B. Round
the delivery hole in the diaphragm are placed circular
flanged plates for stiffening it, and the top plate serves
the purpose of the delivery-valve seat, the beat for which
is formed by the inward flange of the diaphragm. When
the disc is deflected downwards, as shown in Fig. i, the
capacity of the chamber is diminished, and, as the suction
valve prevents the liquid returning into the suction pipe*

PROGRESS IN PUMPS AND ENGINES

it is forced to pass through the deUvery valve in the disc.
On the return stroke, that is, when the diaphragm is moved
to the position shown by the dotted hnes, the pump cham-
ber is enlarged, the delivery valve closed, and the suction
valve opened, the water enters the chamber, and so on.
Fig. 2 illustrates the " Odourless " type, or Forcing
" Dando " pump, worked by two handles. It is similar
to Fig. I, but is covered with an air vessel, and the suction
branch is placed on one side of the body instead of under-
neath. Fig. 3 shows an " Odourless Dando" pump worked
by a pulley and eccentric, or hand-wheel.

2. Pumps Driven by Water Power

Pumps are driven by water wheels, turbines and percussion
wheels by means of gearing. The most suitable pumps
for this class of motor are the three-throw bucket or
plunger types, because they give the most regular dis-
tribution of work for the motor. Sometimes the pumps
are driven by belting and pulleys. This latter method,
however, is not so good, as there is frequently a certain
amount of slip in the belt on the pulley which naturally
reduces the efficiency of the pump, and consequently
causes a loss of power.

Water applied to engines similar to a steam engine or a
direct-acting steam pump is sometimes employed, but
the valve gear must be of particular construction. There
must be no lap on the slide valve or piston valves, and as

p. R. Bjorling.— Pumps and Pumping Engines

FIG. I. SECTIONAL ELEVATION OF THE
" DANDO " DIAPHRAGM PUMP.

FIG. 3. DANDO PUMP FOR WORKING

BY PULLEY OR HAND-WHEEL.

FIG. 2. THE FORCING " DANDO " PUMP.

p. R. Bjorling. — Pumps and Puiiipiiig Engines

FIG. 4. DUPLEX HYDRAULIC UNDERGROUND PUMPING ENGINE.

5. UNDERSHOT WATER WHEEL ACTUATING
PLUNGER PUMPS.

A PAIR OF SINGLE-ACTING

PUMPS DRIVEN BY WATER POWER

there is no expansion in water an auxiliary valve must be
connected with the engine.

Another method is shown in the duplex hydraulic
underground pumping engine, designed by Mr. Henry
Davey, of London, and built by Messrs. Hathorn, Davey
& Co., Ltd., of Leeds, England, for the Miike Mines, Japan,
which is shown in the general view. Fig. 4. The rams
are 14 in. in diameter, with a stroke of 4 ft., and capable
of running at fourteen double strokes, or 112 ft. per minute.
The system upon which these are working was originated
by Mr. Davey, and apphed by him in a hydraulic power
plant erected at a colliery at Marseilles many years ago.
The power water is taken from an overhead tank in the
engine room, and forced by means of the power engines
into 7-in. pipes leading down the shaft to the hydraulic
pumps, and returned by the hydraulic pumps to the tank,
so that the power water is used over and over again. There
are two sets of pipes, one for supply and the other for
return.

The power engines pump the water under a pressure of 1,000 lb.
per square inch, and that pressure is retained constant by means
of a steam accumulator or regulator. The accumulator consists
of a steam cylinder, 40 in. in diameter, and a hydraulic ram, I2| in.
in diameter, working in a hydraulic cylinder. The hydraulic
cylinder of the accumulator is in free communication with the
power pipe, whilst the steam piston is acted on by steam at a con-
stant pressure, this pressure being adjusted by means of a reducing
valve so as to maintain a pressure of 1,000 lb. per square inch on
the hydraulic ram. The steam accumulator forms a governor
to the power engine. If the power engine runs too fast, then the
ram is pushed out, and made to actuate a throttle valve. By this
system the evils arising from inertia which accompany the use of
a weighted accumulator are obviated. The power engine is of the
triple expansion type, having a 20-in. high-pressure cylinder, 29-in.
intermediate, and 41-in. low-pressure cylinders, with a common

PROGRESS IN PUMPS AND ENGINES

stroke of 2 ft. 4 in. The pumps are of the ram type, worked direct
from the pistons. Each ram is 5J in. in diameter. There are two
sets of suction and two dehvery valves to each pump. The power
water is supplied with a little oil for the purpose of keeping the
working parts in good order.

The hydraulic pumps raise 1^400 gallons per minute,
against a head of 350 ft.

An undershot water wheel actuating a pair of single-
acting plunger pumps, manufactured by Messrs. E. and H.
Roberts, Ltd., of Stony Stratford, England, is illustrated
in Fig. 5. In the design shown the water-wheel is 5 ft.
in diameter by 2 ft. wide, the pumps having rams 2^ in.
in diameter, the stroke being variable by changing the
position of the crank-pin in a slot in the pump crank disc,
the slot being continued so that the pin can be put right
into the centre, and the pump by that means remaining
idle, while the wheel may be utilized for other purposes,
such as are required on farms, etc. The two pumps being
opposite one another and the plungers made in one with
the yoke, one pump acts as a guide for the other. The
wheel and pumps are mounted on a steel girder frame.

A double set of pumps of this pattern, worked by an undershot
water wheel, was erected at Glevering Hall, Wickham Market,
England. In this case the water wheel is 10 ft. in diameter by
5 ft. face, and is actuated by a 4 ft. 8 in. fall. It drives two pairs
of 12 in. by 5 in. horizontal plunger pumps, variable from i to 12 in.
stroke, so that the wheel, developing 4 brake horse-power, may be
used for other purposes whilst the pumps are at rest. One set of
pumps is placed on each side of the wheel. Each pump is fitted
with an independent air vessel, and a large air vessel and safety
valve are fitted on the main delivery pipe to prevent bursting.
The pumps are worked at the lowest possible pressure for the water's
elevation for storage to the extent of 7,000 gallons, but in case
of fire, by closing one valve in the main, the whole power of the
wheel can be secured, so that the force from the hydrants may in
a few minutes be increased to the maximum pressure available

WIND POWER PUMPS

and be rendered most effective. The water is lifted 80 ft. to the
storage tank, and about 26 tons is the quantity usually available,
but in the event of too much being pumped at any time the over-
flow is conducted to the sewers to flush them, and in this way most
of the spent water in the yard is again used beneficially.

3. Wind Power Pumps

Wind is another natural motive power^ which will be much
more widely adopted for pumping than at present. There
is no expense attached to this method of pumping except-
ing a very small cost for lubricating oil, and the usual
attention to the pump parts. It is necessary that these
should be examined periodically to see that all joints and
packings are in good condition.

The water appliances employed, when wind engines are
chosen as the motive power, are single-acting bucket
pumps, single-acting plunger pumps, double-acting piston
pumps, bucket-and-plunger pumps, chain pumps, scoop
wheels and dash wheels.

Wben only small quantities have to be raised, the
single-acting bucket or plunger pumps, or the bucket-
and-plunger pumps, are usually employed, worked direct
from a crank on which the wind wheel is secured. When
larger quantities have to be dealt with and the lift is
moderately high, three-throw bucket or plunger pumps
are to be recommended ; the pump crank-shaft being
placed horizontally over the well or other source, and
worked by gearing from the vertical shaft driven by the
wind wheel.

The chain pump worked by a wind engine is sometimes

PROGRESS IN PUMPS AND ENGINES

used for raising water from quarries and brick yards^ and
to empty the workings.

Large quadruple semi-rotary pumps worked by wind
engines are very useful for irrigating land and reclamation
purposes.

For very large quantities and extra low lifts, as for
pumping salt water into evaporating pans, reclaiming
land, or irrigating purposes, scoop wheels, and dash
wheels should be used.

The objection to wind engines is the uncertainty of the
wind pressure, but this is provided against by ha^ring
tanks or reservoirs, capable of holding three or four days'
supply of water, as a calm seldom exceeds that length of
time.

There are essentially two classes of wind engines, viz.,
the solid-wheel and the sectional-wheel engines. The
sohd wheel is very useful for small engines, say up to 14
to 16 ft. diameter, but above that, the sectional-wheel
engine should be adopted.

The regulation of the speed of the engine should be
automatic, as in the event of storms it makes the engine
more powerful and durable.

The solid non-regulating wheel engine is, of course,
the cheapest in first cost, and is therefore frequently
adopted where a small amount of power is required. But
a part of the cost is spent in making it strong enough to
resist a storm, whereas, if it were made self-regulating
the size could be so calculated that the full power required
would be obtained when the wind has an approximate
speed of 10 to 14 miles per hour, or 1,232 ft. per minute.

WIND POWER PUMPS

In the case of the solid-wheel wind engine the governor
or regulator is the wind pressure. When, therefore, a storm
occurs it causes the engine to jerk in and out of the wind,
and brings undue strain and wear on the working parts ;
and, again, when the wind is unsteady, it causes the engine
to run very unevenly. This is detrimental to the pump
or pumps actuated by it. In strong wind the sohd- wheel
engine will throw so far out of the wind as to stop entirely,
or run very slow, thus doing little or no work. The sec-
tional wheel will not jerk or throw out and stop, but will
keep a regular motion, and after attaining its maximum
speed ■will hold it, no matter how strong the wind may be,
because it is only governed by the wind pressure enough
to keep it from all danger, and by centrifugal force suffi-
cient to give a uniform speed.

It is a well-known principle that the speed of the wind
wheel must be proportionate to the angle of the sails and
the speed of the wind ; thus to sharpen the angle at which
the sails are set is to retard the motion of the wheel, and
to flatten the angle is to accelerate the motion.

A solid- wheel wind engine, manufactured by Messrs.
E. and H. Roberts, Ltd., of Stony Stratford, England, is
shown in Fig. 6. The firm's usual method of connexion is
by fixing the wind engine directly over the weU and having
a straight reciprocating pump rod right down to the pump,
which is, of course, fixed within 25 ft. of the bottom, or
according to the depth of the water in the well, the pump
rod being guided.

The i2-ft. diameter " Hercules " wind engine, made by the above
firm, has twenty-four blades, grouped in slx sections, having a sail

PROGRESS IN PUMPS AND ENGINES

area of 82-5 square feet ; with 27-5 square feet effective clearance
area between tlie blades and 17-104 square feet clearance at centre
of the wheel. The sails are secured by means of steel brackets to three
angle steel rings. The wheel is strengthened by stay rods from the
prolongation in front of the shaft upon which the wheel is fixed.

The wind engine illustrated in Fig. 6 was fitted with
an 8-in. pump used for draining peat mosses for moss
litter. The engine is fitted directly over the well and
has a straight reciprocating pump rod made of wood^ and
guided in rollers and brackets, spaced every ten feet or
so, and by using a single-acting pump the wood rod can be
employed without fear of springing or whipping.

When the wind engine has to be placed some distance
from the well, L-bobs are used, as shown in elevation.
Fig. 7. A is a tube rod connected to a crank on the wind-
wheel shaft, which oscillates the L-bob or quadrant B,
which latter is coupled to the L-bob C, by means of a tube
rob D, guided in roller guides E, at intervals. F is the
pump rod coupled to the pump in the well G. It will be
seen from this that on the up-stroke of the crank on the
wind-wheel shaft, the pump is also making its up-stroke,
so that the long rods are always in tension.

The pump which Messrs. Roberts recommend for
wind engines is of the syphon type, illustrated in sectional
elevation, Fig. 8. It will be seen that the suction pipe
leads in at the upper part of the pump casting, the working
barrel consisting of an internal liner with an annular space
between it and the casing, through which the suction
water passes by the syphon action, thus ensuring the casing
always being full of water ready for starting, which is a
great advantage for wind engines.

J^. A-. B]orlins.~Puiiips and Pumicing Engines

FIG. 6. SOLID-WHEEL WIND PUMPING ENGINE.

FIG. 7. L-BOES AS USED TO CONNECT WIND MOTORS TO WELLS WHEN
LATTEK ARE NOT DIRECTIV UNDERNEATH.

p. K. Biurling. — Pumps and Pumping Engines

FIG. 8. SKCTIONAL ELEVATTON
OF SYPHON PUMP AS RECOM-
MENDED FOR USE WITH WIND
ENGINES.

FIG. 9. TRANS\'ER^F SECTIOX.

LOXGIIUDINAL SECTION.

jUADRUFi-E SE5U-ROTARY PUMP FOR IRRIGATING AND
LAND-RFCLAIMING PURPOSKS.

WIND POWER PUMPS

The wheel is controlled by means of a tail vane which
normally stands at right angles to the wheel when the latter
is facing the wind. The wheel is fixed a Uttle out of the
centre of the tower, so that when the wind increases the
wheel tends to move out of the wind, but the tail vane
is driven into it against the torsion of a spiral spring, which,
when the wind is reduced, draws the wheel into the wind.

A quadruple semi-rotary pump, suitable for working
in connexion with wind engines for irrigating and land
reclaiming purposes, is shown in transverse section, Fig. 9,
and longitudinal section, Fig. 10.

To one end of the cylinder, A, is secured a collecting chamber
B, from which the delivery-branch C ascends. The pump is fitted
with eight valves, four for suction and four for delivery. The
valves H, J, K and L, in the end M of the cyhnder, are provided
with strengthening flanges, and are placed on the inner side of the
cyhnder end, so that they may open inwards to the pump, and thus
become the suction valves. The valves A^, P, and R are opposite
the suction valves and open towards the delivery chamber B, and
constitute the delivery valves. On the shaft S, which passes
through the pump cylinder, the wings T are fixed ; the interior
of the cylinder is divided into two parts by the fixed partition wall
U, which fits into a groove in the ends and sides of the cylinder,
and extends close up to the centre boss of the wings. By imparting
an oscillating action to the wings, by means of a lever fitted on
to the end of the shaft 5, the pump has a quadruple action. A
metallic wire gauze V is fastened on a projecting flange on the
cylinder, and on the centre of the boss surrounding the shaft, pre-
venting any solid matter from getting into the pump. Messrs.
Duke & Ockenden are the makers in England.

A sectional-wheel wind engine, designed by Mr.
John WaUis Titt, of Warminster, England, is shown in
elevation. Fig. 11, actuating a set of three-throw pumps,
fixed in a well. The pumps are worked by means of a pair
of angular wheels at the wind wheel, a pair of bevel-wheels

PROGRESS IN PUMPS AND ENGINES

at the base of the tower, a horizontal shaft fitted at the
outer end with a spur-pinion, gearing into a spur-wheel
keyed on the three-throw crank shaft. The pump crank
is on the opposite end to the spur wheel fitted with a
fast and loose pulley, so that the pumps can be worked
by a belt from an auxiliary engine in case of draught.
The pinion on the outer end of the counter-shaft is either
fitted with a clutch or made to slide out of gear, when the
wind engine is not employed.

The working barrels of the pumps and the suction
valves are placed at the bottom of the well, and the suction
pipe is placed in a bore hole at the bottom of the same.
As the water rises high up in the well, when the pumps
are standing, the delivery-box is placed high up near the
surface of the ground, the box and the working barrels
being connected by stand-pipes, made slightly larger in
diameter than the working barrels, so as to allow the
buckets and suction valves to be lowered down freely
without injury to the leathering or other kind of packing
used.

The suction valves are provided with eyes, so that they
can be " fished " out from the top at the delivery box.
On the side of the delivery box a branch is provided on to
which is secured a retaining valve, and above the delivery
bend in the rising main an amply large air vessel is pro-
vided. The pump-rods are reciprocated by the usual
class of deep-well pump connecting rods, technically
termed " pump slings."

The pump employed by Mr. Titt, when it is worked
direct, that is, when the wind engine is placed on the top

WIND POWER PUMPS

of the well, is shown in sectional elevation, Fig. 12. It
is of the differential or bucket-and-plunger type, being
single-acting in the suction and having a double-acting
dehvery, so that it dehvers an equal quantity on the
up and down stroke ; the plunger being one-half the area
of the bucket. When this class of pump is employed
the wind wheel is mounted on a horizontal crank shaft, by
means of a short connecting rod, which actuates a lever,
to the outer end of which the pump-rod is connected.
In this way a short crank can be used and the stroke of
the pump is increased.

The head of this engine is built of steel angles and plate,
so that there is no danger of breakage. The wheel is con-
trolled by a tail vane and weighted lever. The lever is
raised by a starting wire, over small pulleys, which passes
down to near the ground level of the tower for starting
without going up the tower.

Fig. 13 illustrates a Pumping Plant made and erected
by Mr. John Wallis Titt for the Italian Government at
Margherita di Savoia, Italy, for raising sea water for dis-
tribution in vaporizing beds for the production of salt.

It consists of a 37-ft. 6 in. diameter wind wheel, mounted on a
50-ft. hexagonal type steel tower and driving a dash wheel, 14 ft.
in diameter, 2 ft. wide, with 16 vanes, made wholly of wrought iron.
The duty varies from a minimum of 2 ft. to a maximum of 5 ft. 9 in.,
according to the tide, the average being 4 ft. 6 in. Provision is
made by sluices suitably placed to regulate the depth of immersion
at intake of wheel. The main tees of the tower are of steel 4 in. by
3 in. by fth of an inch. The engine is capable of developing 15
horse-power in a wind of 25 miles per hour. With a wind velocity
of from 7J to 10 miles per hour 106,920 gallons of water can be
raised by the dash wheel ; a wind velocity of from 15J to 18J miles
per hour enabhng it to furnish a supply of no less than 283,536

VOL. II. 17 C

PROGRESS IN PUMPS AND ENGINES

gallons hourly. The wind wheel was furnished with lOO sails, but
now Mr. Titt employs 50 sails, each 12 ft. long and controlled by
two 14-ft. diameter tail wheels, instead of the single wheel illustrated.
The wind wheel shaft is 5| in. in diameter, the vertical shaft 3|- in.
in diameter, and the dash wheel shaft 6 in. in diameter. The tower
foundation is 13 ft. in diameter by 9 ft. 7 in. deep ; the foundation
bolts are 10 ft. 2 in. long by i J in. in diameter. The driving wheel
is 10 ft. in diameter and the pinion 37 in. in diameter. The weight
of engine resting on the foundation is about 20 tons.

This class of pumping plant is also very suitable and
economical for drainage and irrigation purposes, w^here
large quantities of water have to be dealt with, and may
be modified as to size to suit requirements.

Mr. Titt has made a number of wind engines of this
description, amongst others one 35 ft. in diameter, " Sim-
plex Geared," on 50 ft. steel tower, driving an 18 ft. dia-
meter scoop wheel, capable of lifting 2,000 to 3,000 gallons
of water per minute 8 ft. high. This wind engine was
erected at Limavady Junction, Co. Derry, Ireland, for
drainage of slob land.

4. Gas and Oil Engine Pumps

A Gas Engine coupled to a set of vertical two-throw plunger
pumps is illustrated in front elevation. Fig. 14. It has
been constructed by Messrs. Crossley Bros,, Ltd., Man-
chester, England. The gas engine is of the ordinary " Cross-
ley " type, actuating the pumps by means of a spur
pinion on the crank shaft, gearing into a spur wheel keyed
on to the pump crank shaft. The pinion can be released
by a clutch operated by a hand wheel. To economise
height the pump plungers are open at the top and the

p. R. Bjoritns.- — Pumps and Pumping Engines

13. LARGE PUMPING PLANT FOR RAISING SEA-VVATEK TOR DISTRIBUTION
IN VAPORIZING BEDS FOR THE PRODUCTION OF SALT.
DIAMETER OF WIND WHEEL, ;!,y FT. 6 IN.

p. R. Bjorling. — Piiiiifjs ami Pumping Engines

FIG. 14. TWO-THROW PLUNGER PUMPS DRIVEN BY A " CROSSLEY " GAS ENGINE.

FIG. 13. GAS-ENU.INE DRIVEN PUMP DESIGNED FOR DOMESTIC WATER SUPPLY.

GAS AND OIL ENGINE PUMPS

connecting-rod pins are secured at the bottom of the
plungers. The pump crank-shaft is carried on two
A-frames. The dehvery branch is provided with a large
air vessel. The suction inlet branch is cast in the pump
bed plate.

These engines and pumps are suitable for town's
water supply, sewage works, etc.

An engine and pumps, made by the same makers, for
small quantities, such as domestic water supply, is illus-
trated in Fig. 15. The engine is horizontal, driving a
vertical single-acting plunger pump, fitted with an air-
vessel, by means of a wheel and pinion, and over-neck
pump crank.

Another arrangement of " Crossley " engine and pump
is designed for domestic water supply, but it can also be
used for any other purpose, as the pump can be disengaged
by means of a friction clutch and hand wheel. This is
illustrated in Fig. 16. The engine in this case is vertical,
dri\dng a vertical single-acting plunger pump, the counter-
shaft, carrying the spur wheel and pump crank pin, is
carried by brackets on the engine standard.

A gas engine and centrifugal pump for emptying docks,
etc., manufactured by Messrs. Crossley is shown in Fig. 17.
The centrifugal pump is worked direct from the crank-
shaft, and a heavy fly-wheel is provided at each end of
the shaft, to ensure steady working. The engine and
pump can be started in a few minutes. At a recent trial
of a plant fitted by this firm, 521,416 cubic feet of water
was raised from a dock, in 2 hours and 21 minutes, the
consumption of gas being only 8,678 cubic feet.

PROGRESS IN PUMPS AND ENGINES

When not required for pumping, the engine can be
used, if desired, for electric Hghting, or driving machinery,
or any of the numerous purposes for which power is em-
ployed in ship-building yards.

An oil engine and pump combined, manufactured by
Messrs. James B. Petter and Sons, Ltd., of Yeovil, and
London, England, is illustrated in Fig. i8. These are
suitable for use where the water is within 20 ft. of the
surface. The pump, of the single-acting plunger type, is
bolted to the side of the engine bed plate, and driven by
means of a spur wheel and pinion from the engine crank
shaft. The pinion can be fitted with a clutch, so that the
pump can be thrown out of gear, and the engine driving any
other machinery, either direct from the flywheel, or from
a pulley keyed on the engine shaft outside the flywheel.

A 3 horse-power " Petter " oil engine will deliver about
2,500 gallons of water per hour, at a point 100 ft. above
the surface of the water in the well or other source. The
gearing is machine-cut, and the valves, valve seats and
plunger are made of brass.

A I J horse-power " Petter " deHvers about 1,000
gallons, at a point 100 ft. above the surface of the water.

The engine is fitted with patent automatic ignition,
which renders the use of any lamp or outside flame un-
necessary except at starting.

A 2j brake-horse-power oil engine coupled direct to
a pump, bolted to the side of the engine bed-plate, manu-
factured by Richard Hornsby and Sons, Ltd., Grantham,
England, is illustrated in Fig. 19. This engine has been
specially designed for crude oil. The pump is of the

P- R- Biorling. — Pumps and Pumping Engi;

FIG. l6. SINGLE-ACTING PLUNGER PUMP ACTUATED
BY VERTICAL GAS ENGINE.

FIG. 17. GAS ENGINE DRIVING CENTRIFUGAL PUMP DIRECTLY CONNECTED
TO CRANK SHAFT.

p. R. Bjorling. — Pumps and Pumping Engines

FIG. iS. SINGLE-ACTING PLUNGER PUMP DRIVEN BY
A " PETTER " OIL ENGINE.

FIG. 19. PLUNGER PUMP DRIVEN BY A " HORNSBY "
OIL ENGINE.

GAS AND OIL ENGINE PUMPS

externally packed plunger type, driven by an overhanging
spur wheel, in which is fitted the pump crank pin. The
wheel is rotated by means of a spur pinion on the engine
crank shaft. The pinion is driven by a friction clutch,
so that any class of machinery can be driven by belt from
the engine fly-wheel or a pulley on the outer end of the
crank shelf, when the pump is not required.

The Grantham Water Works pumping engine, made
by the above firm, is shown in Fig. 20. The engine is
42^- brake-horse-power, of the horizontal type, having a
cylinder 19J in. in diameter, by 22 in. length of stroke,
having a nominal speed of 175 revolutions per minute.

The pumps are of the three-throw plunger type, having
plungers 11 in. in diameter, by 15 in. length of stroke,
running at a speed of 34I revolutions per minute, de-
livering 536-5 gallons of water per minute against a head
of 160 feet.

At the official test of this pumping plant the engine indicated
48-80 horse-power, giving out 41 brake-horse-power. The pump-
horse-power was 26-33, so that the mechanical efficiency of the
engine was 84 per cent.

The following is a copy of the test : —

Trial of 42J B.H.P. Hornsby-Akroyed cheap fuel oil engine
and a set of geared treble ram pumps at Grantham Water Works.
Consumption of Texas crude oil per hour, 35-125 lb.
Consumption of Texas crude oil per B.H.P., 0-856 lb., or 0.744

pint.
Consumption of Texas crude oil per pump H. P. per hour, 1-33 lb.

or 1-15 pint.
Consumption of Texas crude oil per milhon foot-lbs. of water pumped,

0-585 of a pint.
With oil at 2|^. per gaUon per million foot-lbs. of water pumped,
o-i8d. for fuel.
The oil used was Texas liquid fuel oil, having a specific gravity
of 0-92, and a flash point of 170 degrees Fahr., open test.

PROGRESS IN PUMPS AND ENGINES

An arrangement of an oil engine driving a set of vertical
three-throw plunger pumps is shown in illustration, Fig. 21.
The engine is of the " Ruston " horizontal type, manufac-
tured by Messrs. Ruston, Proctor and Co., Ltd., of Lincoln,
and the pumps were made by Messrs. Hay ward- Tyler and
Co., London.

One of these engines of 25 effective horse-power during a trial
of three hoars' duration, at a speed of 200 revolutions per minute,
gave an effective horse-power of 26-5. It made go-6 explosions.
Russian oil of the " Russolene " brand was used, having a specific
gravity of 0-825 and a flashing point of 85 degrees Fahr. Weight of
oil used per effective horse-power per hour was : —
Exclusive of Lamp at start, 0-593 lb.

0-575 British pint
0-327 htre.
Time required to start this engine was 15 minutes and it used
during that time i lb. of oil.

In this type of oil engine the pressure due to the ex-
plosion gradually rises, commencing shortly before the
crank reaches its inner " dead centre,'' but does not attain
its maximum pressure until the crank is well past the
" dead centre," and in such a position as to make the
fullest use of the pressure on the piston. The ignition
tube is made of a special mixture of cast iron, and is kept
hot by the explosions, it works automatically after starting,
and dispenses with the attention to lamps. The vaporizer
is bolted to the cylinder end, and after starting is quite
automatic in action, the oil being vaporized before enter-
ing the cyhnder, prevents waste from clogging and deposit
in the cylinder. The speed of the engine is regulated by a
centrifugal governor, controUing a hit-and-miss device. A
speeder is fitted by which the revolutions of the engine
can be varied within wide limits, while running.

p. R. Bjorling. — Pumfys and Pumping Engines

20. 4^1 B.H.P. HORNSBY OIL ENGINE DRIVING THREE-
THROW PUMPS AT THE GRANTHAM WATER WORKS.

RUSTON OIL ENGINE DRIVING A SET OF VERTICAL
THREE-THROW TRUNK PLUNGER PUMPS.

p. R. Bjorling. — Pumps and Pumping Engines

FIG. 22. RUSTON OIL ENGINE DRIVING TWO LOW-LIFT CENTRIFUGAL PUMPS.

HOT AIR

Messrs. Ruston, Proctor and Co., have applied a
number of their engines for pumping. A very fine set con-
sisted of a i6 B. H. P. oil engine driving a set of vertical
three-throw trunk plunger pumps, having plungers 9^ in.
in diameter with a stroke of 12 inches, forcing 300 gallons
of water per minute to a vertical height of 80 ft.

Fig. 22 illustrates an oil engine, made by the same
firm. The engine is 16 brake-horse-power, driving two
4-in. low-lift centrifugal pumps, each delivering 250 gallons
of sewage per minute to a total height of 17 ft.

5. Hot Air Pumps

The Rider's hot air engine and pump is illustrated in
Fig. 23. It is fitted with patent removable furnace.
This engine has a pump i| in. in diameter, fitted on one
side, capable of pumping 360 gallons of water per hour to
a height of 108 feet. The cost of running this engine is
about one penny per 1,000 gallons of water pumped to
a height of So ft. There is no explosion, and therefore
no danger.

The principle upon which the engine works is as fol-
lows : —

The compression piston, shown on the left side of the
illustration, first compresses the cold air in the lower part
of the cylinder into about one-third its normal volume,
when, by the advancing or upward motion of the power
piston, shown on the right-hand side, and the completion
of the down stroke of the compression piston, the air is
transferred from the compression cylinder, through the

PROGRESS IN PUMPS AND ENGINES

regenerator, which is shown connecting the top of the
two cyhnders, and into the heater without appreciable
change of volume. The result is a great increase of pressure
corresponding to the increase of temperature, and this
impels the power piston up to the end of its stroke. The
pressure still remaining in the power cylinder and re-
acting on the compression piston, forces the latter up-
wards till it reaches nearly the top of its stroke, when, by
the cooling of the charge of air, the pressure falls to its
minimum, the power piston, and the compression again
begins. In the meantime the heated air passing through
the regenerator, has left the greater portion of its heat
in the regenerator to be picked up and utilized on the
return of the air towards the heater. This process recurs
at each revolution. The lower portion of the compression
cylinder is kept cold by a current of water which circulates
through the cooler, which surrounds the lower portion
of the cylinder. In pumping engines, the water which is
pumped answers this purpose. The heater is kept at a
dull red by a steady fire — generally coke — which is under-
neath it. The furnace is of the simplest form, similar
to an ordinary greenhouse stove. The same air is used
continuously, as there is neither influx nor escape, the
air being merely shifted from one cylinder to another.

6. Compressed Air Pumps

Compressed air is apphed for raising water in many ways,
but none of the methods have yet been brought to per-
fection, except by the direct-acting pump similar to the

COMPRESSED AIR

ordinary pump driven by steam. The only difference
in the two is that, if no heater is employed for heating the
air before it enters the power cylinder, the exhaust must
be made quite free or it will soon become blocked up with
ice.

The advantage of compressed air over steam, is that
there is no appreciable difference in the pressure and no
condensation in the pipes, when a long distance is placed
between the compressor and the pump.

Another method employed for raising water by com-
pressed air is on the direct contact principle, similar to
the steam in a pulsating steam pump, (which latter is
illustrated in Fig. 85, and described on page 66.)

Yet another method is by the air-lift pump, which
consists of a rising pipe in the form of a tube, driven down
in the ground and air admitted from a compressor by
means of a small pipe to the bottom of the rising main.
The air and water become mixed, by which means the
water is reduced in weight, rises up the main, and is de-
hvered at the top. This method has not yet come into
general use, and its action is not well known.

Some engineers are of the opinion that the air is ad-
mitted at the bottom of the rising main in volumes, formmg
as it were alternate layers of air and water, the air acting
as pistons, which gradually expand as they rise. Other
engineers think that the air comes in with the water in the
form of small bubbles, at the bottom. Another opinion
is that the air enters at the bottom forming air pistons,
but as the air expands on its passage up the rising pipe,
it gradually mixes with the water. There is no doubt of the

PROGRESS IN PUMPS AND ENGINES

matter if the air-lift is not properly proportionate, for the
water is delivered at the top of the well, in some cases
in a jerky fashion, plainly proving that layers of air and
water have been present in the pipe.

The air-lift pump is undoubtedly to be recommended
under certain circumstances, if carefully designed, but if
misapplied and not of a first-class design it is one of the
most expensive and wasteful plans that can be adopted.
Air-lift pumps vary in almost every case, as regards air
pressure, depth of submerged part of the pipes, and quan-
tity of air required. For the above reasons no definite
rules of a general description can be laid down, besides
it also greatly depends upon the kind of air nozzle em-
ployed for spraying the compressed air into the bottom
of the rising main.

In some cases the pipes have been made taper, some
installations tapering larger downwards and others up-
wards, but neither gives such good results as a well-designed
parallel pipe.

The air-pipe is sometimes taken down the centre of
the rising pipe, which is an advantage, as the rising pipe
can then be made of almost the same external diameter as
the bore hole. At other times the air pipe is run down the
outside of the rising pipe, in which cases the latter must be
made smaller in diameter to leave space for the air pipe
to pass down.

ELECTRIC MOTORS

7. Electrically-driven Pumps
Electricity is now rapidly making headway as a motive
power for pumps of every description, especially for under-
ground working in collieries and mines, and in places
where a nvimber of pumps have to be worked which are
situated a great distance from the motive power station.

Pumps are driven by the electric motor in different
ways : —

In the case of a high-speed pump, such as one of the
centrifugal kind, it is driven direct from the motor
spindle.

If the amount of space is limited and the pump is of
the quick-speed type, it is driven by a wheel and pinion ;
if the pump is of the slow-speed class, two sets of gearing
and a countershaft are employed.

If there is plenty of space, some engineers prefer to
drive the pump or pumps by a belt from the motor.

When gearing is employed, it is frequently of the
" Helical " type, because this class of gearing is stronger
and works more quietly. If ordinary gearing is used the
pinions are generally made of raw hide.

When belting is used and the installation is large,
the leather-link belt is to be preferred, being stronger and
gripping the pulleys better. A good belt of the latter
class wears remarkably well.

Centrifugal Pumps Driven Direct.

In Fig. 24 is shown an " Invincible " centrifugal com-
pound pressure pump driven by an electric motor,
manufactured by Messrs. Gwynnes, Ltd., London,

PROGRESS IN PUMPS AND ENGINES

England, well adapted for mining purposes, waterworks,
etc. It is claimed to be one of the most efficient water
raisers in the world. It is simple, durable, occupies very
little space, and only requires an inexpensive foundation,
and may be driven direct by electric motor, as shown
above, or by steam, gas or oil engines, either direct or
by belt.

A high-lift turbine pump and electric motor, manu-
factured by Messrs. Mather and Piatt, Ltd., Manchester,
England, is shown in Fig. 25. It was made for the Menangle
Water Works, Sydney. The engine for driving this set is of
the double-acting open vertical marine type, compound and
condensing, capable of indicating 500 horse-power when
running at 150 revolutions per minute, with 160 lbs. of
steam pressure. The dynamo has eight poles, and is
compound wound, and gives an output of 550 amperes
at 550 volts. The motor is similar to the dynamo, but has
only four poles, and is shunt wound. It works at 500
volts at its terminals, and gives out 354 brake-horse-power,
when running at 720 revolutions per minute.

The pump is of the high-lift turbine type, coupled
direct to the motor spindle. It is designed to deliver
2,800 gallons of water per minute to a height of 265 feet.
The water enters the revolving vane wheel axially and
symmetrically on each side, so that axial thrust is elimin-
ated ; the water then traverses the curved internal passages
between the vanes, and is disch arged tangentially at
the periphery of the vane wheel into a stationary guide
ring, concentric with the revolving vane wheel, and having
its guide blades so arranged as to form channels gradually

p. R. Bjorhng. — Pumps and Pumping Engi

FIG. 23. RIDERS HOT AIR ENGINE AND

PUMP.

- ei— . fis-^.

^T^.,

FIG. 24. GWYNNe's " INVINCIBLE " CENTRIFUGAL COMPOUND PRESSURE
PUMP DIRECTLY DRIVEN BY ELECTRIC MOTOR.

p. R. Bidding.— Pumps and Pumping Engines

"n^awv

p. R. Bjorling. — Pumps and Pumpinii Engines

p. R. Bjorlnig. — Pwnf^^ and Pniupins. piigiiifs

FIG. 27. JIOTOR-DRIVE.N' THREE-THROW TOW-LIFT PUMP
WITH SINGLE GEAR DRIVE.

FIG. 2S. SECTIONAL ELEVATION OF ABOVE PUMP.

ELECTRIC MOTORS

widening from within outwards, so that the water is
nowhere restricted or opposed in its course through the
pump.

Pumps Driven by Single Gearing.

One of two sets of pumps constructed by Messrs. Hay-
ward-Tyler and Co., of London and Luton, to the order of
the War Office for use in the generating station at Alder-
shot, is shown in Fig. 26. Each set consists of vertical
three-throw air pumps of " Edward's " type, 8 in. in
diameter by 8 in. stroke, geared direct to an electric motor
by single reduction gear. A 6-in. centrifugal pump is
coupled direct to the motor spindle, and a set of 3^ in.
by 6 in. stroke vertical three-throw trunk plunger pumps
are driven by gearing from the air pump crank-shaft, for
pumping water into a tank. The latter can be stopped
by means of a friction clutch.

The whole of the above pumps are driven by means of
a 17 brake-horse-power multipolar motor, running at a
speed of 86 revolutions per minute.

Pumps Driven by Double Gearing.

Fig. 27 shows a set of low-lift pumps designed for lifts
below 200 ft. driven by an electric motor, manufactured by
Messrs. Ernest Scott and Mountain, Ltd., Newcastle-on-
Tyne, England. The pumps are of the three-throw hori-
zontal plunger type.

One of the pumps is shown in sectional elevation, Fig. 28.
The ram is made of gun-metal, and the stuffing-box and
gland are hned with the same material. In this pump
is a free current for the air to flow through the working

PROGRESS IN PUMPS AND ENGINES

barrel, and therefore no air lodges. The valve-seat B is
kept below the under side of the waterway C. This is a
good feature, as it allows the water to rise straight up a
short distance without having any tendency to draw the
valve towards the waterway. The valve boxes are all
separate, bolted to the pump body, and interchangeable,
like all the other parts, which is a great advantage in case
of a break-down, especially when far removed from a
foundry and mechanical workshop. Suction and de-
livery branches are arranged on either side, so that, if it
is more convenient, the pipes can be taken from either
side. The plungers are not provided with slipper guides
in the low-lift pumps, except when specially ordered.

The motor is placed at the side of the pumps, and
drives them by means of a pinion gearing into a wheel on a
countershaft. The pump crank is driven by pinion and
spur wheel in the usual manner from the countershaft.

A set of portable three-throw vertical pumps and
protected type motor, made by Messrs. Scott and Mountain,
is illustrated in Fig. 29. It consists of a set of three-throw
externally packed plunger pumps driven by spur gearing
from a countershaft, which latter is worked by an electric
motor bolted to the same bed-plate, the latter being
mounted on four wheels, so that the whole pump and motor
can be run down the workings in mines and collieries, as
the work proceeds. The motor is covered in, to protect
it from falling debris, and this prevents any sparking from
the brushes from igniting any explosive gases that may
be contained in the air.

Electrically-driven a set of boiler feed pumps, as

P- R. HjOrlhts- — Puinl?s and Pumping Engin

FIG. 29. PORTABLE THREE-THROW VERTICAL PUMP AND
PROTECTED TYPE MOTOR.

FIG. 30. ELECTRICALLY-DRIVEN BOILER FEED PUMPS.

/■'. R. Bjorlni^. — PiDups and Puuihim:^ Engines

ELECTRIC MOTORS

ordered for the South Wales Distributing Company, at
Pontypridd, manufactured by Messrs. Hayward- Tyler
and Co., is shown in Fig. 30. The pumps, plungers, valves
and valve seats are of gun-metal. The crank shaft is of
the bent type, made of steel. These pumps are capable of
delivering 10,000 gallons of water per hour against a boiler
pressure of 125 lb. per square inch. The pumps are driven
through double reduction gearing.

Pumps Driven by Treble Gearing.

A set of three-throw horizontal plunger pumps driven
by an electric motor, manufactured by Messrs. Hathorn,
Davey and Co., Ltd., of Leeds, is illustrated in Fig. 31.
The plungers are 5^^ in. in diameter by 9 in. length of stroke.
It is capable of delivering 100 gallons of water per minute,
at 44 revolutions per minute, against a head of 540 ft. The
plungers are provided with slipper cross-heads working
in guides provided on the top of the bed-plates. The
electric motor is of 25 brake-horse-power.

Pumps Driven by Belt.

A combined electric motor and three-throw plunger
pump for raising 60 gallons of water per minute under a
head of 300 ft. is shown in Fig. 32. It is manufactured
by the Sandycroft Foundry and Engine Works Company,
Chester, England. In this arrangement the motor founda-
tion plate is secured to the pump bed. The motor drives a
countershaft by means of a belt and two pulleys, and the-
pump crank shaft is driven by a pinion on the counter-
shaft and a helical wheel on the pump shaft. The pumps
are of the usual externally-packed single-acting plunger
type. A dehvery air vessel is provided on the dehvery

PROGRESS IN PUMPS AND ENGINES

branch pipe. A motor switch is arranged on the motor
bed-plate.

" Riedler " Pump Driven by Single Reduction Gear.

A " Riedler " pump connected by single reduction
gearing to an electric motor, is illustrated in elevation,
Fig. 33, and end view. Fig. 34. This shows clearly how
the control of the valves is effected, the principle being
the same whatever the size of the pump or nature of the
driving gear. It consists of a wrist plate which is oscil-
lated by means of an eccentric and rod, from the pump
crank shaft, and the suction and delivery valves are actuated
from the said wrist plate by means of levers and connecting
rods or links.

A section of the " Riedler " differential plunger or
plunger-and-plunger pump is shown in Fig. 35.

The pump consists of a body casting, fitted with two plungers,
/ and H, the former being twice the area of the latter ; the two
being connected by means of the rods G, one on each side of the pump
body. The action of this pump is as foUows : — When the plungers
are moved towards the right, the water enters the suction pipe /I,
through the pipe B, and the suction valve E, into the large working
barrel. On the return stroke, that is, when the plungers move
towards the left, the suction-valve E closes and the water is forced
through the delivery valve F ; but as the plunger H is only half the
area of the plunger /, half the water will pass into the left-hand
working barrel, the remaining half is forced through the passage
C into the delivery-pipe or rising main D. On the return stroke
towards the right the small plunger H discharges the other half of the
water through the passage C into the delivery pipe D. From this
it will be seen that the suction is single-acting and the delivery
double-acting with only two valves. The displacement must be
calculated as a single-acting pump with an area equal to the larger
plunger /, or as double-acting if the area of the small plunger is
taken.

An electrically-driven sinking pump, manufactured

p. R. Bidrling. — PiDnhs mid Puiii[^iHg Engines

THREE-THROW PLUNGi;]-! PUMPS ELECTRICALLY DRIVEN
BY BELT DRIVE.

p. R. Bi'iylin'j,. — Pumj^s and Pn)nj^ing Engines

FIG. 34. FIG. :;^.

SM.\LL-:-lZED " RIEDLT-.R " PUMP CO.N'NECTED BY GEARING TO
ELECTRIC JIOTOR.

FIG. 35. SECTIONAL VTFW OF A " RIEDLER " PUMP BUILT ON THE
" DIFFERENTIAL " PRINCIPLE.

P- if. Bjoilnii;. — Pumps and Piiinpuig Engii

p. K

,^ /,.„,,/,»».— P»m^•; "«'' P'i!"r''>i Engines

eci

>^^

J
<

H
Pi
W

ELECTRIC MOTORS

by the Sandycroft Foundry and Engine Works Co., Ltd.,
Chester, England, is illustrated in Fig. 36.

The pump is of the duplex single-acting plunger type. The
pumps and valve boxes are in one casting, a single cover giving
access to all the valves. The plunger glands are easily packed,
being outside. Above the pump body is an intermediate piece
carrying the cranks, reduction gearing, connecting rods, and guides.
Two eye-bolts are provided on the top of the motor for slinging
the whole apparatus in a shaft or wimze. A provision is also made for
securing the pump to cross timbers, if desired.

The reducing gearing comprises a raw-hide pinion on the motor
shaft, gearing into a cast-iron wheel on the second motion shaft.
A cast-iron pinion on the second motion shaft gears into a cast-
iron wheel on the pump crank shaft.

The motor is of the damp-proof type. It is provided
with laminated poles and a slot wound armature, the
winding consisting of former wound coils. The bearings
are self-oiling.

A set of three-throw electrically-driven pumps, manu-
factured by Messrs. P. R. Jackson and Co., Ltd., Manchester,
England, is shown in Fig. 37. The pumps are driven by
double reduction gearing, consisting of ordinary spur
wheels and pinions. The plungers are provided with
cross-heads, working in slipper-guides furnished on the
top of the bed-plate. The pump crank-shaft bearings are
diagonal, so that the thrust of the plungers does not come
on the cap bolts, but on the sohd part of the casting.

A vertical set of three-throw plunger pumps driven
by an electric motor, is shown in elevation, Fig. 38, and
end view Fig. 39. It has'been designed by Messrs. Andrew
Barclay, Sons, and Co., Ltd., Kilmarnock, Scotland. The
reducing gear in this case consists of a worm and worm-
wheel. The plungers are 7 in. in diameter by 9 in. stroke,
VOL. II. 33 ^

PROGRESS IN PUMPS AND ENGINES

and they run at a speed of 40 revolutions per minute.
These pumps are capable of forcing 8,000 gallons of water
per hour into a boiler having a working pressure of 2251b.
per square inch. Fig. 40 shows a sectional elevation of
one of the pumps and valve boxes.

The crank-pin ends of the connecting-rods are of the marine
type and cross-head pin ends are made adjustable by means of a
gib and cotter. The cross-head pin is secured inside the plungers.
The plungers, besides being guided inside the pump stuffing-boxes and
glands, are also working in gun-metal bushed guides, secured be-
tween the two A-frames, which carry the pump crank-shaft. The
suction and delivery valve boxes are cast in one and secured by
branches to the working barrels, and an air vessel forms a cover
for the delivery valve-boxes, a side cover being furnished for access
to the suction valves. A rehef valve is provided on the main de-
livery pipe.

When these pumps are worked by spur gearing, the ratio is
usually made six to one.

Fig. 41 is a reproduction of a photograph of a set of
horizontal three-throw pumps made by the same firm,
worked by an electric motor. The plungers, in this case,
are 10 in. in diameter by 12 in. stroke, and are designed
for running at a speed of 50 revolutions per minute and to
deliver 500 gallons of water per minute against a head
of 165 ft. All the spur wheels used in these pumps are
machine cut.

8. Steam Pressure Pumps

The steam engines employed for actuating pumps may be
divided into two classes : —

1. Direct-acting; and

2. Rotative Engines.

STEAM PRESSURE

I. Direct-Acting Steam Pumping Engines.

A direct-acting pumping engine is a machine for
raising water or any other hquid, fluid or semi-fluid, so
constructed that the pump is worked by a motor cyUnder
without the intervention of connecting-rods, cranks, or
fly-wheel.

These engines may be subdivided into : —

A . Single cylinder, or Simplex ; and

B. Duplex pumping engines.
A. Single-cylinder, or Simplex.

Although the " Cornish " and the " Bull " engines
come under this class we will leave them out, as they
are so seldom employed, having been superseded by the
more modern types.

This class of pumping engine or, perhaps, more cor-
rectly speaking, steam pumps, originally did great service
in its simplest form, as feed-pumps, when comparatively
low steam pressures were used, the plant small, and the
price of coal moderate. Now, when fuel is dear, and the
steam pressure high, more economical types are employed,
having their cylinders compounded.

The direct-acting pumps are made both horizontal and
vertical, and used for an endless variety of purposes. A
steam fire engine for large factories, manufactured by
Messrs. Hayward- Tyler and Co., London and Luton, Eng-
land, is illustrated in Fig. 42. It is of the "Universal"
long-stroke type, with outside slide valve. The steam
valves are actuated by steam on the positive principle,
that is, they are moved by the direct pressure on steam
from the piston through shooting ports provided in the

PROGRESS IN PUMPS AND ENGINES

steam cylinder. Directly the main piston has passed a
small port in the cylinder, the steam passes on to the back
of an auxiliary valve, working inside the main valve, and
admits steam behind it, and opens the main steam ports
ready for the return stroke. The same operation goes
on at the other end of the steam cylinder.

The water cylinder is of the double-acting piston type,
fitted with indiarubber ball-valves, for rapid running.

In this example the steam cylinder is 12 in. in diameter,
and the water cylinder 7J in. in diameter, both having a
stroke of 15 in.

Illustration Fig. 43 shows a steam pump for colliery
work of the " Niagara " type made by the same firm, with
outside steam valves, and provided with a long stroke.
The valve gear is similar to that of the fire engine. Fig. 42,
but the water part is of the externally packed double-
acting plunger type. It consists in reahty of two single-
acting ram pumps placed face to face and one plunger
working into both working-barrels, and connected to
the pump rod, which latter works through a stuffing-box
and gland.

This example has a steam cylinder 21 in. in diameter,
plunger 9 in. in diameter, and a stroke of 48 in., suitable
for a lift of 320 ft., with a steam pressure of 50 lb. per
square inch.

A sinking pump fitted with Bailey and Lindemann
water part, called the " Denaby " sinking pump, manu-
factured by Messrs. W. H. Bailey and Co., Ltd., Salford,
England, is illustrated in sectional elevation, Fig. 44, and
perspective view. Fig. 45. In this pump there are three

p. K. Bjdrling.— Piimpi and Pumpws, Engines

o fr

p. R. Bj Ming.— Pumps ana Pumping Engines

ILMIiffl "

p. R. Bjorling. — Pumps and Pumping Engines

FIG. 44. SECTIONAL VIEW.

FIG. 45. OUTSIDE VIEW.
THE " DENABY " SINKING PUMP.

p. R. BiOiling.^Piiinps and Puini^ing Engines

FIG. 46. weir's direct actIxNg boiler

FEED PUMP.

FIG. 47. WEIR TANDEM COMPOUND
FEED PUMP.

STEAM PRESSURE

plungers, A , B, and C ; the small plungers B and C are
one-fourth of the area of the large plunger; E, F
are the cases for the two small plungers ; and the de-
livery valve or valves, as the case may be, is placed in a
clack-piece formed on the top of the plunger-case for the
large plunger. In the example before us the pump is
worked direct from a steam cylinder, and the case for the
plunger is coupled to the piston-rod by a cotter.
In Fig. 44 the plunger B acts as an air vessel, and the
water is delivered through the small plunger C, into the
back-pressure or retaining valve. In Fig. 45 the water
is delivered through both the smaU plungers B and C,
carried through two pipes which are joined above the
cylinder into one central rising-main, so that everything
is perfectly balanced.

The steam cylinder is fitted with Davidson's direct-
acting valve gear.

The " Weir " patent direct-acting feed pump, illus-
trated in Fig. 46, is manufactured by Messrs. G. and J.
Weir, Ltd., Cathcart, Glasgow. The peculiar feature
in this pump is the patent steam valve gear.

It consists of a main and an auxiliary valve. The main valve
is for distributing steam to the cylinder ; the auxiliary for distri-
buting steam to work the main valve. The main valve is moved
horizontally from side to side, being driven by steam admitted and
exhausted from each end alternately. The auxiliary valve is
actuated by lever gear from the pump rod, and moves on a face on
the back of the main valve, and in a direction at right angles to the
main valve. By this arrangement there is no dead centre, the
action being absolutely positive, because the only possible position
in which the main valve can rest is at full travel — either for an up
or down stroke of the piston.

Both the main and auxiliary valves are simply slide valves, but
the former is half round, the round side working on the cylinder

PROGRESS IN PUMPS AND ENGINES

port face, which is bored out on one side to fit the valve. On the back
of this main valve a flat is formed for the auxiliary valve to work
upon. Both ends of the main valve are lengthened so as to project
beyond the port face, and are turned cylindrical with flat ends. Caps
are fitted on each of these ends forming cylinders, which are closed
at the mouth by the flat ends of the main valve, which act as pistons.
The functions of the auxiliary valve are to admit steam through
the ports on the back of the main valve to move the main valve
from side to side. The ports for admitting steam to the top and
bottom of the cylinder are arranged to cut off before the end of the
stroke, and so slow down the pump, thus permitting the water
valves to settle quietly and relieve the connections from any shock.
On the last quarter of the stroke the steam is thus used expansively,
so effecting a considerable economy in steam consumption. Pro-
vision is made, however, round the caps covering the end of the
main valve by admitting live steam during the entire stroke, as,
when the pumps are standing and the metal is cold, the steam con-
denses and it is necessary to clear out the chamber of water. These
caps are turned by means of a gun-metal spindle with indicating
pointers at each side of the steam valve chest. The stroke of the
pump can be adjusted while the pump is working by nuts on the
valve spindle.

The pump is of the double-acting piston type, the
valves at each end are of the multiple gun-metal type,
placed at the upper part of the working barrel, at the
proper place, so as to prevent the too usual air-lodge at
the top end of vertical piston pumps. The steam and
water cylinders are connected by two columns, and the
valve lever is fulcrumed on a rod connecting the steam
chest with the pump valve-box.

Fig. 47 represents the " Weir " vertical tandem com-
pound feed-pump, suitable where the boiler plant is of
comparatively small dimensions, and a single pump is avail-
able. The high-pressure cylinder is fixed above the low-
pressure and a single steam valve is employed for the
steam distribution. A steam receiver is bolted to the
low-pressure cyUnder, connected with the exhaust from

STEAM PRESSURE

the high-pressure cyHnder, and the steam admission on
the low-pressure cyHnder.

The water cyHnder is similar to the single cylinder type,
illustrated in Fig. 46.

Messrs. Weir's water pistons are of a novel description.
There are three rings forming a T ; the packing rings are of
specially manufactured ebonite^ and are cut at an angle to
permit of their expanding and filling the working barrel.

The independent direct-acting high-pressure feed
pump, illustrated in sectional elevation, Fig. 48, is manu-
factured by Messrs. Clarke, Chapman, and Co., Ltd., of
Gateshead-on-Tyne. The pump shown is of the single
cylinder type, fitted with Woodeson's patent steam valve
gear. The hydraulic part is of the double-acting piston
type, and fitted with multiple suction and delivery valves
for the top and bottom of the working-barrel. The steam
cyHnder is secured to the hydraulic cylinder by means of
three steel columns.

The valve chest is fitted with a liner manufactured of the best
close-grained cast iron, of a suitable thickness to withstand any
tendency to distort through the temperature of high-pressure steam.
This liner is divided into two chambers, a top chamber or main
steam chest, and a bottom chamber or auxiliary steam chest. In
the top chamber the main valve is fitted, which gives steam and
e.xhaust to the steam cylinder, and is controlled by an auxiliary
valve, which is fitted in the bottom chamber of the liner and is
actuated by a lever and spindle which are moved backwards and
forwards by the cross-head on the piston rod. Both the main and
au.xiliary valves are of the piston type and are perfectly balanced.
The main valve is free to be moved up and down by the steam
admitted to it by the auxiliary valve through ports and passages
cut in the outside of the liner for that purpose ; it also cushions
itself and is prevented from sticking each time it is moved up or
down by closing the exhaust port at either end of the top chamber.
The auxiliary valve is fitted on the spindle between a collar and

PROGRESS IN PUMPS AND ENGINES

a nut, and it is impossible to replace either main or auxiliary valves
in a wrong position alter overhauling the pump. To the top of the
main valve is attached a small spindle with handle fitted to it ; by
this means it is possible to see exactly what the main valve is doing,
and it is also useful to move the valve up and down by hand to free
it from any impediment which may have accumulated, should the
pump have been standing for any length of time.

The pump rods are cold-rolled manganese bronze, working in gun-
metal glands and neck-bushes.

Fig. 49 is a reproduction of Messrs. Clarke, Chapman
and Co.'s compound feed-pump. The low-pressure valve
gear is exactly like the one just described, but the high-
pressure valve is a plain piston valve actuated by the
spindle of the low-pressure valve.

The hydraulic part is similar to that of Fig. 48.

Clarke-Chapman horizontal direct-acting feed-pump
outside packed ram type, fitted with Woodeson's valve
gear, is illustrated in elevation. Fig. 50, and plan. Fig. 51.
The pump part is of the two-ram type, the rams being pro-
vided with cross-heads and connected by side rods. The
suction and delivery valve boxes are bolted to the barrels.
This is a good arrangement in case of a breakdown, but
it increases the clearance space in the pump, hence pre-
vents the pump from raising the water from any great
depth, which is seldom the case with boiler feed-pumps,
especially if the feed-water is hot, when the water must
be run into the pump, or the lift reduced to the smallest
amount possible.

The following is a copy of an official test taken with Clarke-
Chapman Tandem Compound Direct-acting Feed-pump, " Woode-
son's Patent," supplied to the Charing Cross and City Electric
Co., Ltd., London : —

Date ...... Sept. 12, 1901.

Steam-pressure, per square inch . . 182 lb.

P- R- Biorling. — Pumps and Pumping Engina

FIG. 48. INDEPENDENT DIRF.CT-ACriNG

HIGH-PRESSURE FEED

PUMP.

49. TANDEM COMPOUND SLOW
SPEED DIRECT-ACTING
FEED PUMP.

p. R. BjorUng. — Pumj^s and Pumping Engines

jQx

ff^CTT

o \ ^\°t i

STEAM PRESSURE

Pressure in delivery pipes, per square

inch ....
Water horse-power developed
Weight of steam used per hour
Pounds of steam used per water horse

power per hour
Pounds of water discharged against

lb. pressure per 8 lb. of steam used
Number of strokes per minute
Efficiency of pump .
High-pressure cylinder
Low-pressure cylinder
Water cyhnder
Length of stroke

183 lb.

20-96 „
849 ,.

40-5
185
114-6

97-1

9i
18

9H
19

Tests of a Clarke- Chapman Simple Slow Speed Feed Pump,
" Woodeson's Patent," taken by W. Foggin, Esq., of Messrs.
Foggin and Reed, Consulting Engineers, Newcastle-on-Tyne,
England.

Diameter of steam cylinder

Diameter of water cylinder

Length of stroke ....

Average double strokes per minute

Average steam pressure in lb. per
square inch ....

Average pressure of discharge of pump

Gallons of water per double stroke

Pounds of water discharged against
a pressure of 166-5 lb. per square
inch per lb. of steam used at a pres-
sure of 150 lb. per square inch .
The pump efficiency during the whole of the above tests was
99-4.

6
18
16-8

150
168-5
3-8

78-04

Fig. 52 is a sectional and front elevation, and Fig. 53
an outside view of a very economical pump of this class.
It is of the vertical direct-acting compound type, and
manufactured by Messrs. J. P. Hall and Sons, Ltd., Peter-
borough, England. The water cylinder is of the double-
acting piston type, fitted with flat seat gun-metal valves,
provided on their back with springs for rapid and certain

PROGRESS IN PUMPS AND ENGINES

closing. The steam cylinders are worked tandem fashion,
the low-pressure cylinder being placed below the high-
pressure one.

The valve arrangement is of a peculiar construction, consisting
of two piston valves controUed by an auxiliary valve on the front
of the steam-chest. The auxiliary valve is also of the piston type,
and is operated by means of levers from the engine piston-rod.
The upper valve is that of the high-pressure cylinder, which is
operated by steam, thus giving motion to the low-pressure valve by
means of a rocking lever shown in the end view, Fig. 52. The
rocking lever is provided with a handle, in order to start the pump,
which is done by placing the high-pressure valve in the opposite
position to that it would occupy if the pump were working. This
fills the high-pressure cylinder with steam, so that when the
positions of the valves are reversed such high-pressure steam is
exhausted into the low-pressure cylinder and the pump then
continues in motion as long as steam is on.

B. Duplex Pumps.

A vertical duplex single-cylinder boiler feed-pump is
illustrated in Fig. 54. The steam cylinders are of the
ordinary duplex type, in which one cylinder actuates
the slide valve of its neighbour ; the valves being moved
by levers from the piston-rods. The brasses in the wiper
brackets are made adjustable.

The water cyhnders are of the double-acting piston
type. The water valves have their lift controlled by a
spiral spring, the valves being threaded upon the central
spindle, which also serves to retain the valve studs in
place. This arrangement makes a very quiet working
valve.

This and two following pumps are manufactured by
Messrs. J. H. Carruthers and Co., Ltd., Glasgow, Scotland.
In Fig. 55 is shown a vertical compound boiler feed-
pump. The high-pressure steam valves are of the piston

p. R. Bjorling.— Pumps and Pumping Engines

iftS.^- .

[^ej4j.«jZ^-

^?JU^^^

FIG. 52. HALL & sons' COMPOUND DIRECT-ACTING
BOILER FEED PUMP.

R. Bjd''liiif;.—Piiiitt'S and Pumping Engines

FIG. 54. A'ERTICAL DT'PT.EX SINGLE

CYLINDER BOILER FEED

PUMP.

53. PERSPECTIVE VIEW
FEED PUMP.

OF HALL & SONS

P- R. BjnrUno. — Punihs and Piini^nig Engines

FIG. 55. CARRUTIIERS' VERTICAL COMPOUND BOILER
FEED PUMP.

p. R. Bjorhng. — Pninp^ a}id Piiinping Engines

H 0,

STEAM PRESSURE

type and the low-pressure valves are of the ordinary slide
type. There are double stuffing-boxes, which separate
the high-pressure and the low-pressure cylinders ; this
arrangement prevents any leakage of steam from the
one cylinder to the other, and is always open to inspec-
tion.

A combination of vertical low-service duplex steam
pump, vertical steam boiler and vertical duplex boiler feed-
pump is illustrated in Fig. 56. The boiler is 4 ft. in dia-
meter by 8 ft. high, having a working pressure of 100 lb.
per square inch. The duplex low-pressure pump has 6-in.
steam cyhnders, 8-in. water cylinders and 6-in. length of
stroke. The duplex boiler feed-pump has 3-in. steam
cylinders, if in. double-acting piston pumps, all having
a stroke 3 in. in length. The plant illustrated was fitted
in a barge for supplying fresh water to steamers in an open
harbour.

Another combination of vertical boiler and duplex
steam pump, mounted on one bed-plate, is illustrated in

Fig. 57-

The pumps are of the low-service " Gordon " duplex
type, as manufactured by Messrs. Hay ward-Tyler and Co.,
and supplied to the India Office. These pumps have
steam cylinders 6 in. in diameter by 6-in. stroke, the water
cyhnders being 5 J in. in diameter. One water cylinder
of each pump is fitted with end-feed attachment for boiler
feeding, against a pressure of 70 lb. per square inch.

The pumps are capable of dehvering 6,000 gallons of
water per hour, 100 feet above the source of supply, from
a depth of 20 ft. below centre of pump.

PROGRESS IN PUMPS AND ENGINES

The boiler is of the vertical cross-tube, 3 ft. 6 in. in
diameter of shell by 9 ft. 2 in. in height of shell.

Reading water-works engine is shown in sectional
elevation, Fig. 58. This plant consists of a triple expan-
sion, high-duty surface condensing Worthington pumping
plant, manufactured by Messrs. James Simpson and Co., Ltd.,
of London. It is capable of raising 3,000,000 gallons of
water in 24 hours, against a head of 120 feet, with a
steam pressure of 150 lb. per square inch, and a piston
speed of 125 ft. per minute.

The steam cylinders are arranged tandem fashion. The high-
pressure cylinder is 11 in. in diameter, the intermediate 17 in. in
diameter, and the low-pressure 30 in. in diameter. The main
plungers are 16 in. in diameter, all having a stroke of 18 in.

The main steam and exhaust valves are of the semi-rotary or
Corlis type, arranged so as to insure the perfect drainage of the valve
chests and steam cylinders. The exhaust valves are operated by
means of levers connected directly with a wrist plate, and so ar-
ranged that the motion of the piston rod on one side operates the
exhaust valves of the opposite side. The main steam admission
valves are attached to a floating fulcrum on the wrist plate men-
tioned above : the cut-off motion being given by a direct connection
between the floating fulcrum and its own engine. By this means
an absolute positive cut-off is obtained.

The high-duty attachment consists of two oscillating cylinders
attached to each piston rod, and supported in the main frame.
These cylinders are connected by pipes and are filled with oil, re-
ceiving from the main pump air-chamber the air-pressure increased
in the desired proportion by means of an interposed differential
accumulator. The plungers resist the advance of the piston-rod
at the beginning of the stroke and assist it at the end. The action
is substantially that of a fly-wheel.

The main pumps, two in number, are of the multiple
valve type, having two internal plungers.

A surface condenser is placed on the delivery main,
and all water pumped by the engine passes through it,
the use of a circulating pump being thus avoided.

p. R. Bjorling. — PiDiips and Pumping Engines

z
a.

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z
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I
1-

p. R. Bjorling. — Pum^i and Puynhing Engines

.1 f

WOr(THIfJr.TOtl PUMPING tMOIME
CiCNtftAl. riiVATlON

FIG. 59. WORTHINGTON' PUMPING KNGINE MADE BY MESSRS. J.\S.
SIMPSON & CO., LTD , LONDON,

STEAM PRESSURE

Frimley and Farnborough Waterworks, Itchell Well,
is shown in Fig. 59. This plant, manufactured by the
above firm, consists of two triple expansion horizontal
surface condensing Worthington pumping engines, with
two sets of pump work. Each engine is capable of raising
20,000 gallons of water per hour from a well 50 ft. deep,
and forcing the same through three miles of 8-in. main to
a static height of 400 ft. The boiler pressure employed is
120 lb. per square foot.

The steam cylinders are arranged tandem, with one high-pressure
cylinder 8 in. in diameter, one intermediate 12 in. diameter, and one
low-pressure 20 in. diameter on each side, the low-pressure cylinder
being farthest from the high-lift pumps. The high-lift pumps are
of the plunger type, 7 J in. in diameter, which, like the cylinders, have
15 in. stroke. The low-lift pumps are of the bucket type, 8i in.
in diameter by 10 in. stroke.

All the cylinders are steam jacketed, covered with non-conducting
composition and lagged with planished sheets.

The steam valve gear consists of two separate and distinct sys-
tems, viz., the main steam valve system and the expansion valve
system. The former is operated by the cylinder on the opposite
side of the engine and controls the steam inlet and exhaust, whilst the
latter system is operated from the pistons of its own engine and
controls the amount of expansion. The main steam valves are of
the semi-rotary type and are arranged underneath the cylinders.
The steam and exhaust valves are operated by directly connected
levers, thus avoiding the uncertainties of eccentrics, gears, and cams.
The amount of expansion in the high- pressure cylinder can be
adjusted by hand while the engine is running.

A surface condenser is arranged on the delivery ; the whole of the
water passes through the body outside the tubes, whilst the exhaust
steam passes inside the tubes on its way to the air pump.

The high-lift pumps are Worthington externally packed
plunger pumps, double-acting on both suction and de-
livery, the pump valves being multiple spring-closed
valves with gun-metal seats readily accessible and easily
removed, replaced, and examined.

PROGRESS IN PUMPS AND ENGINES

A small compact installation for pumping from a
bore-hole erected at Kesteven Asylum, Lincolnshire,
by Messrs. Hathorn, Davey and Co., of Leeds, is illus-
trated in Fig. 60. The engine is of the beam type,
having a steam cylinder 10 in. in diameter by 2 ft.
stroke. From the opposite end of the beam is worked
a bucket-and-plunger pump, having a bucket 6| in. in
diameter and plunger 4^ in. in diameter by 3-ft. stroke,
and a ram-pump 8 in. in diameter by 2-ft. stroke, the
steam pressure being 80 lb. per square inch. This engine
raises 5,000 gallons of water into a tank 20 ft. above the
engine-house floor level. The delivery from the force-
pump passes through the dome-topped casting which
supports the beam. The upper part of the casting acts
as an air-vessel, while the surface condenser is placed
in the lower part. The pumps deliver on both up and
down stroke, the ram at the top being half the area of the
bucket. The steam-valve gear is of Mr. Henry Davey's
well-known " differential " type. The whole of the
engine is self-contained, on a cast-iron bedplate, which
rests on a concrete bed at the top of the bore-hole.

2. Rotative Steam Pumping Engines.
A pumping engine constructed for the Leicester Cor-
poration Waterworks for raising 10,000 gallons of water
per hour, against a head of 60 ft., from a well 20 ft. deep,
manufactured by Messrs. Hayward-Tyler and Co., is shown
in Fig. 61.

This engine is of the vertical fly-wheel type, having
two cylinders 9 in. in diameter by g-in. stroke, placed over-

/'■ /v'. Bir„l:nf;.-P,iml?s and Pumping Emm

nil i|Pl — --' — r—'^-^

FIG. 60. aOREIIOLE SIEAM PUMP — BEAM TYPE.

p. R. Bjorlin^. — Pumps and Pumping Engines

P- R. Bjorling— Pumps aui Pumping Engines

p. R. /;i";7;»!;. — Piiiiil'w a::<t J'liiiif^hig En:i'i

FIG. 64. PART SECTIONAL ELEVATION OF RIEDl.ER PUMPS

FIG. 6g. VIEW SHOWING " RIEDLER " VALVE PARTS ASSEMBLED.

STEAM PRESSURE

head, working two bucket-pumps, having buckets 7 in.
in diameter by g-in. stroke. The pump barrels are hned
with gun-metah The buckets are fitted with cup-leathers.
The valves are of gun-metal, disc type, with gun-metal
seats, and brass springs for rapid closing. The steam
piston-rods and the pump-rods are connected by a kite,
which is coupled to the crank pin by means of a short
connecting-rod. The pump valves are arranged in the
standards which carry the cylinders.

Fig. 62 illustrates an " Invincible " centrifugal steam-
driven pump, as manufactured by Messrs. Gwynnes, Ltd.
It is provided with the Gwynne-Sargeant patent balanced
tubular disc, which permits of exceptionally large solids,
compared with the area of suction and delivery pipes,
passing through the pump. Every part is of great strength,
and the arrangement of the inside is such that the cutting
action of the slime is reduced to a minimum.

The pump is secured to the end of the vertical engine
frame in such a manner that it can be swivelled and the
suction and delivery can therefore be placed at any angle.
Messrs. Eraser and Chalmers, of London and Erith,
England, supplied the engine shown in reproduction
Fig. 63, and sectional elevation of the pumps. Fig. 64, to
the Powell Duffryn Steam Co., in June, 1897. This
engine is of the Cross compound type, fitted with Riedler
pumps behind each cylinder. The high-pressure cylinder
is 30 in. in diameter, and the low-pressure 57 in. in diameter,
both having a stroke of 48 in. The plungers are 6| in.
in diameter. The capacity of this pump is 1,000 gallons
per minute, against a head of 1,600 feet, when running

PROGRESS IN PUMPS AND ENGINES

at 40 revolutions per minute, that is, a piston speed of
320 ft. per minute. When desired, either side is capable
of being cut out, and the full duty can be done by the re-
maining side when running at 80 revolutions per minute, or
a piston speed of 640 ft. per minute.

Both cylinders are jacketed with valve chambers cast in the
body of the cylinders. The steam valves are single-ported in the
high-pressure and double-ported in the low-pressure cylinder.
The inlet valves are closed by spring dash-pots, the point of cut-
off being controlled by a governor on the high-pressure side, by hand
adjustment on the low-pressure side, or by governor when running
that side only.

Both high- and low-pressure pistons are fitted with two rings
and a lining of special babbit. A reheater receiver is mounted
overhead and fitted with 3|-in. v/rought-iron tubes, the steam passing
through the tubes.

The feature of this pump is that all pipes are kept above the
floor. On account of the bad nature of the ground a substantial
framework was built of H beams and channels set on walls to carry
this engine.

The governor is of the " Porter " or central-weight type, having
adjustable weight, so that the engine can be controlled at any
desired speed.

The pump barrels are of cast steel, suction and delivery valves
and all the valve seats are of gun-metal, with an area of 58 square
inches, through the valve seats. The valves are cone seated, fitted
with leather seating rings. The delivery air-vessels are of steel.

One of the pumps is shown in sectional elevation, Fig. 64. There
is only one suction and one delivery valve to each of the pumps,
which are mechanically controlled, so that the valves work equally
well under all pressures. The valve arrangement is shown in Fig.
65, on the left of which is the valve beat, the face for which is shown
at A , the spindle of same terminating with a cap H. B is the valve
proper. F is a rubber buffer fitted over the shank G, which in
turn fits over the valve shank and is prevented from slipping off
same by cap- nut £. That portion of the valve bonnet extending
into the valve-chamber is shown at P. This bonnet contains the
packing through which the spindle K passes, having on its end
the forks /. Keyed to the spindle K is lever L, through which
the spindle receives its motion from the pump wrist-plate. The
broruze pins M have taper ends, which bear on the taper on edge
of valve-seat, and hold the valve-seat down in position. Q is a
groove used for hydraulic packing.

STEAM PRESSURE

At the beginning of the suction stroke the valve opens auto-
matically, controlled, however, by a mechanical device. Near the
end of the stroke, the forks on the end of the shaft move downward,
and before the plunger starts on its return stroke close the valve,
thus preventing all slip and pounding of the valve so common in
ordinary pumps.

It is well to note here that there is no metal-to-metal contact,
as there is always a film of water over the faces of both valve and
valve seat. It is these films that actually come in contact, thus
practically forming at this point a water cushion, which not only
aids in preventing pounding but greatly adds to the life of valves
and seats.

In case of an obstruction between the valve and its seat, the
rubber buffer will be compressed, thus preventing any injury to
' mechanism. The work required to close the valves amounts to
very little, practically nothing more than the friction of the gear.
This, as can be seen from the construction, is very small. The
motion to the valve mechanism is obtained from an eccentric on
main shaft through an intervening wrist- plate. The low-lift pumps
at the back of the main pumps act also as air pumps, and deliver
water pumped to a tank at the back of the engine-room, and from
there the water is delivered to the main pumps. This avoids any
chance of the main pumps drawing air, which might be dangerous
under a high head. These air or low-lift pumps are single-acting,
with 13 in. diameter of plungers, with gun-metal valve plates and
special " Kinghom " type of valves. The jet condensers are at
the side of these air pumps, with the exhaust pipe leading into the
top of them. The amount of water drawn through the condenser
and air pumps is controlled by a float in the tank at the back.

The fly-wheel is 16 ft. in diameter, weighing about 16 tons, and
a two-stage air- compressor is supplied to charge air-vessel, and in
addition to these an independent one, steam driven, so that the
air-vessel may be charged when the engines are standing.

Another Cross compound engine made by Messrs.
Eraser and Chalmers, for Rockhampton Waterworks,
Queensland, is illustrated in Fig. 66. The high-pressure
cylinder is 14 in. in diameter, the low-pressure 24 in. in
diameter, both having a stroke of 36 in. A double-acting
plunger pump is fitted behind each cylinder, the pumps
being of the Riedler type. The plungers are 7I in. in

VOL. II. 49 E

PROGRESS IN PUMPS AND ENGINES

diameter, the capacity being 1,670 gallons per minute
against a head of 205 ft., or maximum 252 ft., when running
at 70 revolutions per minute, equal to a piston speed of
420 ft. per minute.

The duty guaranteed was 110,000,000 ft. -lb. per 1,000
lb. of dry steam, or 15 lb. per indicated horse power ; steam
pressure loi lb. per square inch. The engine is fitted
with a surface condenser and " Edwards " patent air pump.

The cylinders are steam jacketed, with valves in the body. The
pump wrist-plate is driven from the same eccentric as the steam
wrist plate. The cut-off gear is controlled by a Hartnell governor.

The fly-wheel is 12 ft. in diameter, weighing about 44 tons. The
piston-rods are fitted with " Tripp's " metallic packing. A re-
heater receiver is provided, fitted with 2|-in. wrought-iron tubes.
There are two vertical single-acting " Edwards " air pumps, 10
in. in diameter by i8-in. stroke, fitted with " Kinghorn's " delivery
valves. These pumps are connected direct to the tail rod of the
high-pressure side.

An independent air charger is fitted to the delivery air vessel ;
it is of the Westinghouse type, which can also extract the air from
the suction chamber when necessary.

In connection with the air pumps there are two boiler-feed pumps.
The surface condenser is mounted overhead. The tubes are aU
of brass, having an area of 360 square feet. The water delivered
from the Riedler pumps passes through the condenser and round
the tubes, that is, between the tube plates.

The " Edwards " air pump is shown in sectional
elevation. Fig. 67. The condensed steam, and in the case
of jet pumps the injection water also, flows by gravity
from the condenser into the base of the pump. It is there
dealt with mechanically by the conical bucket, which,
working in conjunction with a base of similar shape, pro-
jects the water silently and without shock, through the
ports into the working-barrel. Free air inlets are main-
tained and the water, instead of obstructing the entrance

p. R. Bjorling. — Pumps and Pumping Engines

FIG. 66. IRASER l\; ch-^uiers' cross compou.vd e.vgine

FITTED WITH DOU BI.E-.VCTIXG PLUNGER tT.MP.

FIG. 67. SECTIONAL ELEVATION OF " EDWARDS '
AIR PUMP.

p. R. Bjorliiig. — Pinnps ai:d Puiiit^iiis Engines

...: _-_^^^k

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fe. ,.M

-■ARNiT "A'ATEP V'/'ORKS. .""OTTERS BaR,

FIG. 63. HORIZONTAL T.\NDEM SURFACE CONDENSING ENGINE

.\ND HIGH-LIFT PUMPS BY MESSRS. J.\JI£S

SIMPSON & CO., LONDON.

P- R. Bioiiutg. — Pi(m/>5 aiui Pianf'iii; Engines

ffIG 6g MATHER AND PLATT's SINGLE-ACTIXG DEEP LIFT PUMP.

p. R. Bjotliiig. — Piim,''s aiul Piimf^iug Engines

FIG. 70. IRIPLE-LXPA.NbluX pl'MPINi"; ENGINE AP THE LEEDS
CITY WATERWORKS.

STEAM PRESSURE

of the air, as is the case in the ordinary type of pump,
tends to compress the air already in the barrel, and to
entrain or carry in more air with it. The clearance space
above the piston at the top of the upward stroke is re-
duced to a minimum, thereby considerably increasing
the efficiency of the pump. In the " Edwards " pump
the speed of the water must correspond to the bucket,
and is in no way dependent upon pressure in the condenser
to drive it into the pump, consequently is not impaired
as the speed is increased. It has a small and regular
quantity of water to deal with at each revolution, and
the violent shocks due to sudden flooding are avoided.
There are no valves except the overflow valves at the top
of the working barrel.

Barnet Waterworks machinery, represented in Fig.
68, was manufactured by Messrs. James Simpson and Co.
The engine is of the horizontal tandem surface-condensing
type, with two sets of pumps, capable of raising 500,000
gallons of water in 24 hours. The well-pumps raise the
water from a depth of 325 ft. and deliver into a tank on
the surface. The high-lift pump draws its water from
this tank and delivers into the district supply main.

The high-pressure cylinder is 11 J in. in diameter, and
the low-pressure 24 in. in diameter, both having a stroke
of 24 in. The deep well pumps are loj in. in diameter by
18 in. stroke, and the high-lift pumps 11 in. in diameter,
by i5|-in. stroke.

The engine is of the Corlis frame type, the low-pressure
cylinder being placed next the crank-shaft, with the high-
pressure cylinder tandem to it. Both cylinders are bolted

PROGRESS IN PUMPS AND ENGINES

to a girder bed forming part of the foundation, and are
connected by a central trunk casting.

Both high- and low-pressure cylinders are fitted with trip valve
gear having circular double beat- drop valves. The valves are
lilted and released by trip-levers actuated by eccentrics driven
from a horizontal shaft rotating at the same speed as the crank-
shaft, and running parallel to the engine-bed. The governor auto-
matically controls the length of time the trip-levers are in contact,
thus regulating the speed of the engine. The exhaust valves of
both cylinders are of the double gridiron type, placed underneath
the cylinders. In this way the draining is efficiently carried out.

The main frame is a heavy cast-iron frame, forming a bored guide
for the piston-rod cross-head. The end projects into the cylinder,
forming the front cover.

The engine is fitted with a surface condenser having solid drawn
brass tubes fitted with stuffing-boxes having screwed gun-metal
packing glands. Large doors in the condenser make the over-
hauling and repairing of the packings a very simple matter. The
exhaust steam is led to the condenser by easy bends, passing inside
the tubes on its way to the air pump ; whilst the whole of the water
delivered by the well pumps passes through the condenser outside
the tubes.

The high-lift pump is a horizontal externally packed plunger
pump, double-acting on both suction and delivery and driven
direct from a bell-crank, having a connecting-rod to the gnided
cross-head at the tail end of the piston-rod.

The well pumps are driven from the same bell-crank, the two
top lengths of pump rods being attached to the cross-heads working
in vertical guides. From these cross-head connecting-rods are
carried the bell-cranks. The working-barrels are hung from the
pump heads, and form part of the rising main. This enables them
to be drawn up at any time for examination or repair with the
greatest ease.

A trial was held on this engine, the duty obtained being 114,000,000
foot-lb.

In Fig. 69 is depicted a single-acting deep-lift pump,
designed by Messrs. Mather and Piatt, Ltd., for raising water
from bore-holes. The engine is of the horizontal com-
pound type, the pump crank-shaft being driven by means
of a spur wheel and a pinion secured on the engine crank-

STEAM PRESSURE

shaft. The working-barrel, fitted with a foot valve, is
placed well below the lowest level in the bore-hole. Both
the bucket and the foot valves are of the quadruple beat
class, permitting a very small lift of the valve, thus
reducing the concussion and wear to a minimum.

A triple-expansion pumping engine, built by Messrs-
Hathorn, Davey and Co., Ltd., for the Leeds City Water-
works, is illustrated in Fig. 70. The high-pressure
cj'Iinder has a diameter of 15 in., the intermediate 25 in.,
and the low-pressure cylinder 40 in. in diameter, all
having a stroke of 36 in., the mean ratio of the cylinders
being i, 2-80, 7-33. The crank sequence is intermediate-,
high-, low-pressure. The steam valves on the cylinders
are " Corlis " valves in the cylinder heads, with a very
simple trip gear. The trip gear of the high-pressure
cylinder is controlled by a centre-weight governor. The
trip gear of the other cylinders is ordinarily set to a fixed
cut-off, but is variable by hand adjustment. The cylinders
are steam jacketed — the high and intermediate with boiler
steam, and the low-pressure with steam of 50-lb. pres-
sure per square inch. There are jacketed receivers
between the intermediate- and low-pressure cylinders,
the former having a capacity of 16-3 cubic ft., the latter
20 cubic ft.

Each engine has three single-acting ram pumps, with
numerous valves of small diameter fitted with rubber
faces. The pump discharge is therefore very uniform.

The contract conditions specified that the engine under full head
should pump one and one- third million gallons in 12 hours, with a
steam consumption not exceeding 16 lb. per pump horse power
per hour.

PROGRESS IN PUMPS AND ENGINES

The engine is working against an actual head of 286-9 ^^■

Professor W. Cawthorne Unwin, F.R.S., on November 11, 1899,
tested this engine, the trial lasting 24 hours, which gave the actual
duty of 125,350,000 foot-lb. per 112 lb. of coal.

In this trial the efficiency of the boiler was not good, and the
duty, which depends on the performance of the boiler and engine,
was not so good as it would have been if steam had been supplied
by a more efficient boiler. With a good boiler, hand-fired with
Welsh coal, the evaporation might well have been 9-5 lb. per pound of
coal. Then the coal consumption would have been 240-8 lb. per
hour. In that case the duty would have been 154,350,000 foot-lb.
per 112 lb. of coal.

In America it is common to reckon the duty of pumping engines
as the effective work per 1,000 lb. of steam supplied to the engine.
Taking this measure, the duty of the engine is 151,670,000 foot-lb.
This is almost as high a duty as has been recorded. It involves no
assumption as to the performance of the boiler.

There are two boilers of the Lancashire type, 28 ft. in length by
7 ft. 6 in. in diameter, each having two flues 3 ft. in diameter, taper
to 2 ft. 6 in. at the back end, with four cross-tubes in the flues. Each
boiler is fitted with Bennis' sprinkling stoker. The grate area is
36 square feet and the heating surface is 850 square feet. A Green's
economiser is arranged in connection with the boilers, consisting of
128 tubes, having a heating surface of 1,280 square ft.

We v\dll now notice a new style of deep- well pump,
invented by Mr. Herbert Ashley, engineer at the
Waterworks, manufactured by Messrs. Glenfield and
Kennedy, Ltd., Kilmarnock, Scotland, and illustrated
in Fig. 71. It is suitable for wells, bore-holes and mines.
The pump illustrated has a bucket 2oi- in. in diameter,
by a stroke of 3 ft. 6 in., and was made for the East
London Waterworks, of London, to the order of William
B.Bryan, Esq., M. Inst. C.E., chief engineer. Four of these
pumps stand upon the bottom of a well 200 ft. deep, and
lift their water to the surface of the ground only, while
two stand in another well of similar depth, and are fitted
with plungers to lift their water to a height of 80 ft. above
the surface of the ground, a total lift of 280 ft.

STEAM PRESSURE

A perfectly plain working-barrel stands on the bottom
of the sump a few feet below the level of the floor of the
collecting adit. In this particular example it is built up
in three pieces, bored inside, in which the upper turned
end of the bucket reciprocates ; the middle piece, also
turned internally, within which the lower turned end of
bucket reciprocates ; and the lower piece, which closes
the end of the working-barrel and also forms the necessary
base piece for the pump columns to stand on. The middle
piece is furnished with the suction openings — perfectly
free and open and uncontrolled by valves of any kind.
These openings are so placed that the turned ends of the
bucket never obscure them. These three pieces are flanged
and bolted together, and so placed in the well that the top
of the suction openings are sufficiently below the lowest
level to which the water is ever pumped, so as to prevent
air being sucked in. The construction of the working-
barrel is very simple. There is no clack-box or snore-
piece, and everything is so compact that it is found
possible to place these pumps with centres only three feet
apart.

The bucket may be described as a hollow cylinder,
somewhat greater in total length than the stroke of the
pump. The two ends of the bucket are accurately turned
to fit the two bored portions of the working-barrel, the
upper end reciprocating in its upper bored portion above
the suction openings and the lower end in its lower bored
portion below the suction openings. Between the two
turned portions the bucket is reduced in diameter, forming
waist, which is made hexagonal or square in section for

PROGRESS IN PUMPS AND ENGINES

convenience. The upper end of the bucket is precisely
similar to an ordinary bucket, and carries the delivery
valve of any desired pattern. The lower end is quite
free and open. In the waist of the bucket are secured
circular valve-seats containing the suction valves, opening
inward, of which any desired number may be put in.
Both the working-barrel and the bucket are in all cases
placed in the same relative position to the other parts of
the machinery as the working-barrel and bucket of an
ordinary bucket pump.

The action of the pump is simple. On the up-stroke
the delivery valve is closed and water is lifted. At the
same time the suction valves open and the water pours
into the interior of the bucket and lower part of the working-
barrel. Upon the down-stroke the delivery valve opens
and the suction valves close, and the bucket sinks to the
bottom, ready to commence another up-stroke, and so on.

In Fig. 72 is illustrated a set of three-throw plunger
pumps for raising 30 litres per second (396 gallons per
minute) to a height of 60 metres (196-8 ft.) high, with 6
metres (19-68 ft.) of suction. The plungers are 10 in. in
diameter, having a stroke of 18 in. The set is driven by
means of spur-wheel and pinion from one of Messrs.
Robey, Ltd., Lincoln, England, undertype jet-condensing
engines and feed-water heater. The steam boiler is of
the ordinary locomotive type. The air pump is driven
by the tail rod of one of the steam cylinders.

The pumps were manufactured by Messrs. Hayward-
Tyler and Co.

The same firm has also supplied similar sets having

P- R. Bjoyling.—Pumps and Pumping; Eng

FIG. 71. THE ASHLEY " DEEP WELL PUMP.

FIG. 72. PUMPING SET OF THREE-THROW PLUNGER PUMPS, LOCO BOILER
AND UNDERTYPE JET CONDENSING ENGINES.

p. A'. Biorhng. — Pumps and Piiuiping Engines

fTrrrrrrTTrrTrirrrrTTrrTTTTn

j-'j"- -••i^

|aj»jB^yai.pj.»ii»i.,Ty,»w,y,i»Miiap»^^ 1

j5"

W«Sa>l3SSSSKS«i)«g«S«"«Ka jfji.^^

-m

■I' :^ i

Warrimgton Vv'atef* Works.

FIG. 73. TRIPLE-EXPANSION SURFACE CONDENSING RECEIVER

ENGINE WITH DEEP WELL AND SURFACE PUMPS BY

MESSRS. JAMES SIMPSON & CO., LTD.,

LONDON.

p. R. Bjorling. — Pumps and Pumping Engines

p. R. Bjoiiing. — Pumps and Piiinptiic; Engines

STEAM PRESSURE

plungers 13 in. in diameter by 18 in. length of stroke,
to raise 790 gallons of water per minute to a height of
202 ft. ;

Warrington Waterworks, Delph Lane pumping station
engines are illustrated in Fig. 73. This plant, manu-
factured by Messrs. James Simpson & Co., Ltd., of London,
consists of a rotative triple-expansion surface-condensing
receiver engine with deep- well and surface pumps. The
engine is capable of pumping 3,000,000 gallons of water
in 24 hours, against a total head, including friction, of
236 ft.

The high-pressure cylinder is 13 in. in diameter, the intermediate
22^ in. in diameter, and the low-pressure 35 in. in diameter, the
well bucket pumps 18 in. in diameter, and the surface plungers
17! in. in diameter, all having a stroke of 42 in.

The three cylinders are placed vertically, the high and intermediate
being jacketed with boiler steam and the low-pressure with steam
at 80 lb. per square inch through a reducing valve, the working
boiler pressure being 160 lb. per square inch.

Two equilibrium receivers, fitted with tubes under boiler pressure
to act as reheaters, are placed between the cylinders, the circulation
in these and in the jackets being in a closed circuit.

All the cylinders are fitted with cut-off gear, that in the high-
pressure being under the control of a speed governor, so arranged
that if the speed of the engine varies abnormally the valves are
thrown out of action and left covering the steam inlet ports, while
at the same time a valve on the condenser is opened, destroying the
vacuum.

The cut-offs on the low- and intermediate-pressure cylinders are
adjustable by hand while the engine is running. Each individual
valve is driven direct from central wrist plates by rocking levers,
which are actuated by eccentrics on a counter-shaft running at the
same speed as the crank-shaft and driven off it by mitre gear.

Both the high-lift and well pumps are driven through double
bell-cranks and coupled together, the whole being carefully balanced.

The well pumps consist of two single-acting bucket pumps work-
ing opposite. The working-barrels are hung from the pump-head
and form part of the line of rising main, so that the suction valves
can be readily drawn up for examination or repair. At the pump-

PROGRESS IN PUMPS AND ENGINES

heads the rising mains discharge into one dehvery main, which is
carried into a tank on the surface.

The high-hft pumps are two vertical externally packed plunger
pumps, double-acting on both suction and delivery. They draw
their water from the tank into which the well pumps deliver, and dis-
charge through the surface condenser direct into the delivery
main.

A horizontal high-pressure, jet-condensing fly-wheel
pumping engine, constructed for the Hitchen Urban
District Council by Messrs. Hay ward-Tyler and Co., is
illustrated in Fig. 74. The cylinders are 12J in. in diameter,
by 24-in. stroke, and the double-acting piston pump is
io|^ in. in diameter by 12-in. stroke. The capacity of the
engine is 25,000 gallons per hour, against a total head of
150 ft., at an engine»-speed of 200 ft. per minute and pump-
speed of 130 ft. per minute. An air-vessel is placed both
on the suction and delivery pipe. The air pump is of the
double-acting piston type, worked by the tail rod of one
of the steam cylinders. The valve boxes are bolted on
to the pump cylinder, so that in case of an accident only
a part of the pump has to be renewed.

The Trent Valley Pumping Station, belonging to the
South Staffordshire Waterworks, is shown in side eleva-
tion. Fig. 75. It was built, under the superintendence
of the Company's engineer, Mr. Ashton Hill, and assistant,
Mr. A. E. Douglass, by Messrs. Hathorn, Davey and Co.,
Ltd.

The engine is of the horizontal triple-expansion type,
having high-pressure cylinder 20 in. in diameter, inter-
mediate-pressure cylinder 30 in. in diameter, and low-
pressure cylinder 44 in. in diameter, all with a stroke of
5 ft. These cylinders are arranged tandem fashion, and

STEAM PRESSURE

actuate a pair of bore-hole pumps, each 15^ in. in diameter,
and a force pump I5f in. in diameter, all having a stroke
the same as the engine. The bore-hole pumps are placed
at a depth of 300 feet from the surface, but the yield of
the bore-holes has proved so plentiful that the water level
is only 67 feet from the surface. The engine was built for
a head of 160 ft. on the force pump, but owing to exigencies
of the water company, has for some time been delivering
against a head of 325 ft., or more than twice that for which
it was designed.

The engine is fitted with Mr. Davey's differential gear. This gear
operates the steam valves of the engine, and is driven by water
taken from the rising main, so that in case of a burst pipe the
gear is thrown out of action and the steam valves closed. As an
additional precaution, a throttle valve is placed on the steam pipe
which, usually full open, is arranged to dose automatically, either
in the event of an excessive or too low pressure in the delivery
mains. The engine is also fitted with a pausing gear, so that
the speed can be at any moment regulated from two to fourteen
strokes per minute to suit the demand of water for the time being.

The buckets and clacks are of the double-beat type. The bucket
seatings consist of a gutta-percha ring of rectangular section, and
it is found that both buckets and clacks run night and day for about
twelve months without alteration.

The force pump, which is of the double-acting piston type, is
fitted with valves of the same class as those of the bucket pumps,
and with engines of this type, having a distinct pause between
each stroke, these valves are found to work well.

The horizontal motion of the engine into a vertical motion of the
pump buckets is obtained through Davey's high-duty attachment,
which consists of a pair of angle quadrants, having the pins to
which the engine and pump connecting-rods are attached so placed
relatively to each other that in each stroke the engine pistons obtain
a mechanical advantage over the pump bucket as the stroke is
made, thus permitting a high degree of expansion without the intro-
duction of special appliances or heavy moving parts.

This engine was tested by Mr. Douglass, the result being a duty
of 122,900,000 per 1,120 lb. of steam used.

One of two sets of pumping machinery constructed

PROGRESS IN PUMPS AND ENGINES

by Messrs. Hayward Tyler and Co., to the order of the War
Office for the water supply of hutments in Pretoria, is
illustrated in Fig. 76. This plant consists of a set of
treble-barrel force pumps having plungers 10 in. in diameter
by iS-in. stroke. Each set is capable of raising 20,000
gallons of water per hour against a head of 450 ft. They
are driven by horizontal coupled compound surface-con-
densing engines, having high-pressure cyhnders I4|- in.
in diameter, and low-pressure cylinders 24J in. in diameter,
both having a stroke of 32 in., running at a speed of 27^
revolutions per minute, with a boiler pressure of 125 lb.
per square inch. The engines are fitted with Meyer's
variable cut-off expansion gear, and have fly-wheels 10
ft. 6 in. in diameter by i8-in. face. The surface-condenser
is connected with the suction pipe of the pumps, with a
by-pass and injection valve. The air pump is of the
bucket-and-plunger type, worked by levers from the
cross-head, as also the feed-pump.

A vertical steam engine working a double-cylinder
rotary pump, termed a " Drum " pump, is illustrated in
Fig. 78 and a cross-section of the pump, Fig. "]"]. It con-
sists of a revolving piston A, moving round the drum
C, a vacuum forming, into which | the water flows from
behind, and is forced by the front face of the piston. The
piston A and the drum C are geared together, and the
pump can be driven either way. This is a very great
advantage when thick liquids or semi-liquids are dealt with,
as the suction pipe can, by reversing the action, be made
into delivery and emptied of the liquid. E is the suction
and F the delivery branches, or vice versa, according to

p. R. Bi' rling.~PHiiil?i aiut Pumping Engines

FIG. 76. COMPOUND SURFACE COXDENSIXG ENGINE DRIVING
TREBLE-BARREL FORCE PUMPS.

77. CROSS-SECTION OF DOUBLE
CA'LINDER ROTARY PUMP.

FIG. 78. DOUBLE CYLINDER ROTARY DRUM PUMP.

P- R. Bjurling. — Pumps and Pumping Engines

FIG. 79. TRIPLE-EXPANSION PUMPING ENGINES AT THE LEICESTER
CORPORATION WATERWORKS.

80. TRIPLE-EXPANSION PUMPING ENGINE AT THE
NOTTINGHAM CORPORATION WATERWORKS.

STEAM PRESSURE

the way the pump is running. / is the bed-plate, on to
which the engine and pump are secured.

This pump is very useful for boiler feeding or for forcing
water against moderate pressures. The delivery is con-
tinuous and steady.

The engine is designed for quick and continuous run-
ning, and is fitted with " Pickering's" patent governor, self-
acting lubrication, and a massive fly-wheel. This pump
is manufactured by the Drum Engineering Co., Bradford,
England.

The Leicester Corporation Waterworks pumping
engine at Swithland Reservoir Pumping Station, is illus-
trated in Fig. 79. This engine is of the vertical triple-
expansion type, built and erected by Messrs. Combe
Barbour, branch of Fairbairn, Lawson, Combe, Barbour,
Ltd., Belfast, Ireland. It has a high-pressure cylinder
17 in. in diameter, intermediate cylinder 27 in. in
diameter, and a low-pressure cylinder 44 in. in diameter,
all having a stroke of 3 ft. The cylinders are steam
jacketed, and the engine is fitted with Corlis valves placed
in the cylinder heads. The normal speed of the engine
is 25 revolutions per minute. Each cylinder works a
plunger-pump direct, the plungers being 12J in. in diameter,
and a stroke of 3 ft. The suction pipe is 21 in. in diameter,
and the delivery pipe or rising main 20 in. in diameter by
5,700 ft. long, and the total head to which the water has
to be raised from the suction level in the source to the end
of the rising main is 487 ft. The surface condenser ha^s a
cooling area of 300 ft. The steam pressure is 120 lb. per
square inch.

PROGRESS IN PUMPS AND ENGINES

The pumps deliver 2,000,000 gallons of water per 24
hours, and from a test by the corporation's engineer, during
a trial of 12 hours' duration on November 27, 1903, it
was found that the engine developed a mean of 135
indicated horse-power. The horse-power of water lifted
was 115-79, giving a mechanical efficiency of 85-77 P^^ cent.
Total water pumped was 900,228 gallons, and the steam
used per indicated horse-power per hour was 12-65 ^b.,
the steam pressure being 121 lb. per square inch.

The pumping engine for the Nottingham Corporation for
the Bough ton Pumping Station is shown in Fig. 80, and
the pumps underneath the engine-house floor are illus-
trated in Fig. 81. It was built by the same firm as the
last example.

The engines are of the vertical triple-expansion type,
fitted with slide valve gear. The high-pressure cylinder
is 15 in. in diameter, the intermediate 24 in. in diameter
and the low-pressure cylinder 39 in. in diameter, all having
a stroke of 3 ft.

The main pumps are three in number, have plungers
i2|- in. in diameter by 3 ft. length of stroke, running at
30 revolutions per minute, with a steam pressure of 140 lb.
per square inch, when they deliver 2,000,000 gallons per
24 hours.

The air pump is i8-| in. in diameter by i6-in. stroke.
The surface condenser has 512 tubes, giving a total cooling
surface of 700 square feet. At the official test of this
engine the efficiency, i.e. the pump horse-power divided
by the indicated horse-power, worked out to 92 per
cent., and the condensed steam passing through the engine

p. R. BjorJing. — Pumps and Pumping Engines

FIG. Si. plunger pumps at the NOTTINGHAM
CORPORATION WATERWORKS.

FIG. 82. VERTICAL COMPOUND PUMPING ENGINES WORKING TWO
" ASHLEY " DEEP WELL PUjMPS.

'. R. B,o,l,ng.-P>.mt>s and Pumpnig Engines

t; z

-, o

FIG. S;,.

THE " ASHLF.V

CONCERTINA " DEEP

WELL PUMP.

STEAM PRESSURE

amounted to 13-6 lb. per indicated horse-power per hour.

The whole of the engine and pumps weighed 109 tons
10 cwt.

WiUiam B. Bryan, Esq., the chief engineer to the East
London Waterworks Company was the consulting engineer.

Another engine erected by the same firm for the Gains-
borough Urban District Council is illustrated in Fig. 82.
Percy Griffith, Esq., was the engineer. It is of the vertical
compound type, having a high-pressure cylinder 20 in.
in diameter, and a low-pressure cylinder 40J in. in diameter,
both having a stroke 3 ft. in length. The steam is distri-
buted by means of Corlis valves, placed in the cylinder
heads.

This engine works the surface pumps placed immediately
below the engine, delivering 60,000 gallons of water per
hour, to a reservoir 150 ft. higher. These pumps are 14
in. in diameter, by 3-ft. stroke, running normally at 15
revolutions per minute.

The two deep-well pumps are of the " Ashley concer-
tina " type. This type was adopted, because it was
required to obtain the greatest possible quantity of water
from the bore-hole. For this reason a double-acting
pump, i.e. the pump that can dehver the full capacity
of the barrel in both up- and down-stroke was selected.
One of the best types of bore-hole pumps capable of doing
this is known as the " concertina " or " bellows " type.
In these pumps there are two buckets working in one
barrel, each operated by separate rods and working in
opposite directions, so that when one is going up the other
is going down, and vice versa, and are thus double-acting

PROGRESS IN PUMPS AND ENGINES

and balanced. The great objection to this type of pump
as hitherto made is that, as the buckets move away from
each other, and the space between them is being filled with
suction water, the area through the valve on the bottom
bucket is not sufficient to allow the pump being worked
much more than the speed of an ordinary single-bucket
pump of the same diameter and stroke. Assuming that
in an ordinary pump of this " concertina " type the suction
valve is, say, 50 per cent, of the barrel, and the mean
bucket speed 120 ft. per minute, then the water must
flow through the valve at a mean velocity of 480 ft. per
minute, which is, of course, excessive, the result being
that pumps of this type constructed in the ordinary way
must be made to run one half the speed of an ordinary
one, and will then only discharge very little, if any,
more than the single-bucket pump.

By adopting the " Ashley concertina " pump, as illus-
trated in sectional elevation. Fig. 83, an unlimited num-
ber of suction valves can be put in and the water passages
all made of large area, so that a double-bucket pump of
this class can be run at nearly the same speed as a single-
bucket pump of the same diameter and stroke, and dis-
charge nearly twice as much water, having a continuous
flow, and be perfectly balanced at all water levels.

The bottom bucket rod is solid and worked by the
L-bob shown on the left hand side in Fig. 82, and the top
bucket rod is hollow, worked outside the solid rod, and
is actuated by the right hand side L-bob.

These pumps are placed in the bore-holes, 300 ft. below
the engine house floor, lifting up the 60,000 gallons per

STEAM PRESSURE

hour. The buckets are 19 in. in diameter by 3-ft. stroke,
making 15 revolutions or 30 double strokes per minute
worked by a counter shaft and L-bobs. This shaft is
driven by a hehcal pinion 5 ft. in diameter keyed on to the
engine crank shaft, gearing into a hehcal wheel 10 ft. in
diameter, both having a pitch of aj in.

The suction pipe for the force pumps is 15 in. in dia-
meter and the delivery pipe 14 in. in diameter.

The surface condenser has 300 ft. of cooling surface.

The pumping engine illustrated in Fig. 84 was manu-
factured and erected by Messrs. Combe Barbour, for the
East London Waterworks Company, under the super-
vision of William B. Bryan, Esq., Engineer in Chief. It
is of the vertical triple-expansion surface-condensing type,
having I2j-in. high-pressure cylinder, 2oJ-in. intermediate
and 33-in. low-pressure cylinder, all having a stroke of
2 ft. 6 in. The cylinders are provided with Corlis valves
fitted in the cylinder heads. The normal speed of the
engine is 56 revolutions per minute, with a steam pressure
of 150 lb. per square inch. This is equal to about 171
indicated horse-power.

The engines and pumps are capable of discharging 2|-
million gallons of water per 24 hours into a main 42 in.
in diameter, and against a total head from bottom of well
of 300 ft.

This engine is actuating two sets of " Ashley " patent
bucket pumps through spur gearing and rocking levers.
The buckets are 20J in. in diameter by 3 ft. 6 in. stroke ;
these pumps lifting the water from a well 200 ft. deep, and
delivering it against a pressure of 100 ft. into the 42-in.

VOL. II. 6$ F

PROGRESS IN PUMPS AND ENGINES

main^ all the water passing through the surface condenser.
The pump shaft runs at a speed of i6-i revolutions per
minute. Four of " Ashley " pumps stand upon the bottom
of the well, and lift their water to the surface of the ground
only, while the other two stand in another well similar in
depth, and are fitted with plungers to lift the water to a
height of 80 ft. above the surface of the ground, a total
lift of 280 ft.

Pulsating Steam Pumps

The Pulsometer, manufactured by the Pulsometer
Engineering Co., Ltd., Reading, England, is illustrated in
sectional elevation. Fig. 85. This appliance for raising
^^'ater consists of a single casting, which is composed
of two chambers, A A, joined side by side with tapering
necks bent towards each other, and surmounted by another
casting, called the neck, /, fitted and bolted to it, in which
the two passages terminate in a common steam chamber,
wherein the ball-valve / is fitted so as to be capable of
oscillation between seats formed in the junction. Down-
wards, the chambers A A are connected with the suction
passage C, wherein the suction-valves E E are arranged.
A delivery box, common to both chambers and leading
to the delivery pipe, is provided, in which are fitted the
dehvery-valves F F. The air-vessel B communicates
with the suction. In this example, india-rubber disc-
valves are shown. G G are guards which regulate the
amount of opening of the valves E E. Small air-valves

PULSATING STEAM PUMPS

are screwed into the cylinders and air-vessel for admission
of air.

The pump being filled with water^ either by pouring
water through the plug-holes in the chamber, or by drawing
the charge, the steam is admitted through the steam pipe
K — by opening to a small extent the stop-valve —
passes down that side of the neck which is left open to it by
the position of the steam ball I, and passes upon the small
surface of water in the chamber which is exposed to it,
depressing it without any agitation, and consequently with
but very slight condensation, and driving it through the
discharge opening and valve into the rising-main. The
moment that the level of the water is as low as the horizon-
tal orifice which leads to the discharge, the steam blows
through with a certain amount of violence, and being
brought into intimate contact with the water in the pipe
leading to the delivery valve-box, an instantaneous con-
densation takes place, and a vacuum is in consequence
so rapidly formed in the just emptied chamber, that the
steam ball is pulled over into the seat opposite to that
which it had occupied during the emptying of the chamber,
closing its upper orifice and preventing the further ad-
mission of steam, allowing the vacuum to be completed ;
water rushes in immediately through the suction pipe,
lifting the suction-valve E, and rapidly fills the chamber
A again. Matters are now in exactly the same state in the
second chamber A. The air-cocks are introduced to
prevent the too rapid filling of the chamber on low hfts
and for other purposes, and a very httle practice will
enable any unskilled workman or boy so to set them

PROGRESS IN PUMPS AND ENGINES

by the small nut, that the best effect may be produced.

A pulsometer with a vertical boiler mounted on a pair
of wheels is illustrated in Fig. 86. This arrangement is
very useful where the pumping machinery is wanted for
temporary purposes only, as it is readily moved from
place to place. It is also suitable as a fire engine for
moderately high buildings. They are sometimes mounted
on four wheels when desired.

There are an endless variety of purposes for which the
pulsometer can be applied. One arrangement of one at
a tin mine is shown in Fig. 87. The capacity of this pul-
someter was 28,000 gallons of water per hour. The lift
on which these pumps work varies, of course, but the
usual height is 60 to 70 ft. In this example the pump
was placed at the surface, but they are frequently placed
down in the workings.

Another design of pulsating steam pump, invented and
patented by Mr. John B. Foxwell, is manufactured by the
Waterspout Engineering Co., Manchester, England. This
is illustrated by the reproduction from a photograph,
Fig. 88, and enlarged sectional elevation of valve and
valve-chest. Fig. 89, and enlarged end view of valve-chest.
Fig. 90. The valve A is self-adjusting to its seat. It is of
annular shape, with two faces parallel to each other. It
is loosely supported on an oscillating saddle B, which
fits into the groove C, formed between the two faces of
the valve, and is embraced by the projecting arms D and
D, to prevent it rolling or moving away, and missing its
face. By this arrangement a double or duplex movement
of the valve is obtained, thus enabling it to oscillate be-

p. R. Bjorling. — Pumps and Pumping Engines

FIG. 85. SECTIONAL \-IE\V OF THE PULSOMETER
STEAM PUMP.

FIG. 86. PORTABLE PULSOMETER PUMP AND BOILER.

p. R. BjorUng. — Pumps and Pumping Engines

p. R. Bjch'Ung- — Pumps and Pumping Engines

FIG. 88. THE " WATERSPOUT PULSATING
STEAM PUMP.

^^^^^

FIG. 89. VALVE AND VALVE FIG. 90. END VIEW OF
CHEST. VALVE CHEST.

THE " WATERSPOUT " PUMP.

p. R. Bjorling. —Pumps and Pumping Engines

FIG. 91. HIGH LIFT PUMP, 200 TO 60O FEET HEAD,
FITTED H'lTH ROPE PULLEY.

ROPE AND BELT DRIVEN PUMPS

tween the two valve seatings, so as to close the whole area
of the steam-port at the same time, or immediately adjust
itself to the seating ; also a more regular and even wear
over the surface of the valve facings, and the adjustment
or alteration of the position thereof to compensate for
wear. The other part is almost identical with that of the
" Pulsometer," so that it would only be waste of time
and space to give a description.

Rope and Belt Driven Pumps

Fig. 91 shows a set of high-lift pumps designed for lifts
between 200 and 600 ft. head driven with rope gear. It
is manufactured by Messrs. E. Scott and Mountain, Ltd.
To reduce the length of the bed-plate the driving shaft
is placed above the connecting-rods between the pump
crank-shaft and the pumps. The crank-shaft is fitted
with a spur-wheel on each end, gearing into the pinions on
the driving shaft, to prevent torsional strain as much as
possible on the crank-shaft. The pump design is good,
in fact it would be difficult to make any improvement
upon it.

A belt-driven pump of a novel design, with an arrange-
ment by means of which the length of the stroke of the
pump can be altered whilst the pumps are running, is
made by Messrs. Hayward-Tyler and Co. of London. It
has pump barrels 2-| in. in diameter by 6 in. stroke,
and is capable of delivering 500 gallons per hour against
a boiler pressure of 80 lb. per square inch. The crank
connecting-rods are permanently secured to a rock arm

PROGRESS IN PUMPS AND ENGINES

provided with a slide in which the pump connecting-rod
cross-heads can be moved, by that means altering the
stroke of the pump pistons or plungers, as the case may
be. This pump is also made to be electrically driven.

The " Haste " inertia pump is shown in sectional eleva-
tion, Fig. 92. This pump consists of a hollow plunger,
working through two glands and stufhng-boxes, one of
which is formed in the suction-pipe, and one in the delivery-
pipe or rising-main. At the centre of the length of the
plunger is fitted a valve, made of " Dermatine " in such
a manner that the beating surface is guided on a spindle
secured to a cross-piece in the sides of the plunger, the
ribs being tapered top and bottom so as to minimise the
friction of the water flowing through.

The plunger being reciprocating at a high speed, by
any motor, the valve is closed on the up-stroke, and imparts
so high velocity to the water in the delivery-pipe that the
inertia of this water maintains a continuous discharge
through the down-stroke of the plunger, so that in practice
the flow of water is continuous, hence no pressure air-vessel
is required. This pump has a discharge varying from
416 to 123 per cent., according to the head against which
the pump is working, the area for the passage of the
liquid being the same as in the bore of the plunger.

A general view of a belt-driven " Haste " inertia pump
is illustrated in Fig. 93.

These pumps are manufactured by the Haste Pump
Company, London, England.

p. R. BjOtling. — Pumps and Pumping E

ngines

°2

r. R. Biortnts^.—Fiiml^s ami Pumping Engines

Fir.. 94. VIEW sHO\viN(; details ok

DE I.AVAE CENTRIFUGAL LUMI'.

^. „, TCVHL l,r , AVAL LATENT STEAM TL-RBINE I'UML (capacity: 550

HO. 95. 15 ^-"-'l;';;;;^, g,„,. p,, „in. Head : 60 fea).

,. „, o ,, ,, p r.F I AVAL LATENT ELECTRir MOTOR LUMP (capacity: 35°

HO. 96. S'^-"-'-j;^Ji^,.,ns. pcrmin. Head : 50 fcet).

English De Laval Patent Centrifugal Pumps.

The English De Laval Patent Centrifugal Pumps illus-
trated in Figs. 94 to 97 are specially designed for working
in combination with high-speed steam turbines and electric
motors, but they are also designed for lower speeds, suit-
able for belt drive or for working in combination with
slow-speed engines or motors.

These pumps are made in standard sizes to work against
heads of from 20 feet up to 300 feet, but special pumps for
practically any head up to 1,000 feet are also constructed.

The special characteristic of the De Laval Centrifugal
Pumps, viz., their high speed, which is greatly in excess of
anything previously known in connection with centrifugal
pumps, is a mechanical problem which has been solved
partly by an improvement in the construction of the
wheel and packing boxes of the pump, including their
lubricating arrangements, and partly by paying the greatest
attention to the execution of all the movable parts. The
high rate of speed has made it possible to reduce the dia-
meter of the pump wheel, and consequently the frictional
resistance of the pump has been greatly lowered.

It is claimed by the makers that this circumstance has
made it possible to obtain with the De Laval Pumps an
efficiency considerably in excess of the results generally
obtained with centrifugal pumps.

70a

DE LAVAL PATENT CENTRIFUGAL PUMPS

Owing to the high speed, the dimensions and weight of
the De Laval pumps are small when compared with their
capacity.

A special feature of the De Laval Pumps is their oihng
arrangement. All bearings are self-oiling and entirely
separated from the packings, thus making it impossible for
any oil to get into the water dealt with by the pumps.

All parts are made interchangeable, and to gauge,
and therefore repairs can be very quickly made. Those
parts where a close running fit is required are provided
with interchangeable rings of bronze, which can be easily
replaced in case they are worn.

The pump cases are divided horizontally, making it
possible to inspect the interior of the pump and make
repairs without disturbing the suction and discharge pipes.

70b

pi ,--

» o

TRADE INQUIRY FORM.— TO BE TORN OUT.

Name of Enquirer
Address

City County

Business

Establislied f wholesale)

\or Retail?/

To the Secretary,

National Engineering and Trade Lectures,

Orchard House, Westminster, London,

England.
Or to —

^'Messrs.

Address

JMantifactiirers dircit.

if preferred.

England.

Please have sent to the above address, catalogues prices and other
information concerning the machinery or goods enumerated below.

^Merchanls in all parts of the ivorld arc ini'itcd to make Jree use of these forms
zolien they desire information about aiiytliiiig made in Great Britain, inquiries

ARE ANSWERED WITHOUT CHARGE, AND SHOULD ALWAYS BE OF A SI'ECIFIC — NOT
GENERAL — CHARACTER.

Bibliography of Books on Pumps and
Pumping Engines Published
in Great Britain

" Centrifugal Pumps, Turbines, and Water Motors," by Charles H. Innes.

(Technical Publishing Company, Manchester.)
" Construction of Pump Details," by Philip R. Bjorling. (E. & F. N.

Spon, London.)
" Hydraulic Motors and Turbines," by G. R. Bodmer. (Whittaker &

Co., London.)
" Hydraulic Power and Hydraulic Machinery," by Henry Robinson.

(Charles Griffin 8c Co., London.)
" Hydraulic Rams, their Construction and Management," by J. Wright

Clarke. (B. T. Batsford, London.)
" Manual of Civil Engineering," by W. J. Macquorn Rankin. (Charles

Griffin & Co., London.)
" Mine Drainage," by Stephen Michell. (Crossby, Lockwood & Son,

London.)
" Principles, Construction and Application of Pumping Machinery," by

Henry Davey. (Charles Griffin & Co., London.)
" Pumps and Pump Motors," by Philip R. Bjorling. (E. & F. N. Spon,

London.)
" Pumps and Pumping," by M. Powis Bale. (Crossby, Lockwood &

Son, London.)
" Pumps and Pumping Machinery," by F. Colyer. (E. & F. N. Spon,

London.)
" Pump Fitter's Guide for Calculating and Fixing Pumps," by J.

Eldridge. (E. & F. N. Spon, London.)
" Pumps : their Construction and Management," by Philip R. Bjorling.

(P. S. King & Son, London.)
" Pumps: their Principles and Constraction," by Wright Clarke. (B.

T. Batsford, London.)

Directory of Manufacturers of Pumps and
Pumping Engines in Great Britain

Abbot, John, & Co Park Works, Gateshead-on-Tyne.

Adamson, Daniel, & Co . . . Dukinfield, Manchester.
Allen, W. H., Son & Co. . . . Queen's Engineering Works, Bed-
ford.
Bailey, W. H., & Co., Ltd. . . Albion Works, Salford, Manchester.
Baker Blower Engineering Co. . Stanley Works, Sheffield.

Bamford, C. F Goldington Avenue, Bedford.

Barclay, Sons & Co., Andrew . . Caledonia Works, Kilmarnock, N.B.

Batchelor, R. D 73, Queen Victoria Street, London,

E.C.
Beaumont's Pump Works . . Stockport, Lanes.

Bellis & Morcom, Ltd Birmingham.

Berry, Henry, & Co Croydon Works, Hunslet, Leeds,

Yorks.
Bever, Dorling & Co., Ltd. . . Bowling Iron Works, Bradford,

Yorks.

Boby, Robert Bury St. Edmunds.

Bracket, F. W., & Co Hythe Bridge Works, Colchester.

Braithwaite, H., & Co. . . . Swinegate, Leeds, Yorks.

Braithwaite, Isaac, & Son . . Kendal.

Brazil, Holborow&Straker, Ltd. . Vulcan Ironworks, Bristol.

Brotherhood, Peter .... Belevdere Road, Westminster, Lon-
don, S.W.

Buxton & Thornley .... Burton-on-Trent.

Cadle, C Wellington Quay, Dublin.

Cameron, John Oldfield Road Ironworks, Salford.

Campbell & Calderwood . . . Soho Engine Works, Paisley, N.B.

Campbell Gas Engine Co., Ltd. . Halifax, Yorks.

Capell, R. L Northampton.

Carruthers, J. H. & Co. . . . Polmadie Ironworks, Hamilton

Street, Polmadie, Glasgow, N.B.

Chaplin, Alex., & Co Gowan, Glasgow, N.B.

Cherry, John, & Sons .... Pump Works, Beverley, Yorks.

Clarke, Chapman & Co., Ltd. . . Victoria Works, Gateshead-on-Tyne.

Clay Cross Co Clay Cross, near Chesterfield.

TRADE INQUIRY FORM.— TO BE TORN OUT.

Name of Enquirer

Address

City County

Business

Established / wholesale -,

lor Retail?/

To the Secretary,

National Engineering and Trade Lectures,

Orchard House, Westminster, London,

England.
Or to—

'Messrs.

Address

Mannfadiirers direct.

if preferred.

England.

^ &

Please have sent to the above address, catalogues prices and other
information concerning the machinery or goods enumerated below.

"^^^^ Merchants in all parts of the world a,re invited to make Jree use of these forms
when they desire information about anything made in Ci-eat Britain, inquiries
ARE ANSWERED WITHOUT CHARGE, AND SHOULD ALWAYS BE OF A SPECIFIC — NOT
GENERAL— CHARACTER.

DIRECTORY OF MANUFACTURERS

Clayton & Shuttleworth . . . Lincoln.

Coalbrookdale Co., Ltd. . . . Coalbrookdale, Shropshire.

Cochrane, John Barrhead, N.B.

Coles, H. J London Crane Works, Derby.

Combe, Barber, Ltd Belfast.

Corlett Electrical Engineering Co.,

Ltd Wigan, Lanes.

Craig, A. F., & Co., Ltd. . . . Caledonia Engine Works, Paisley,

N.B.

Crossley Brothers, Ltd. . . . Openshaw, Manchester.

Crossley, Geo., Ltd Albion Ironworks, Cleckheaton,

Yorks.

Crow, Harvey & Co Park Ironworks, Glasgow, N.B.

Daglish, Robert, & Co., Ltd. . . St. Helens, Lanes.

Davey, Paxman & Co., Ltd. . . Standard Ironworks, Colchester.

Dempster, Moore & Co. . . . Robertson Street, Glasgow, N.B.

Denison, Thos., & Co West Street, Leeds, Yorks.

Douglas & Grant Kircaldy, N.B.

Drum Engineering Co Bradford, Yorks.

Duke & Ockenden Littlehampton, Sussex.

Drysdale & Co Bon Accord Engine Works, Glas-
gow, N.B.

East Ferry Road Engineering

Works Co., Ltd Millwall, London, E.

Easton & Co., Ltd Broad Sanctuary Chambers, West-
minster, London, S.W.

Edwards Air Pump Syndicate,

Ltd

Electrical Construction Co.
Ellison, W. T., & Co., Ltd.
Evans, Joseph, & Sons .
Fielding & Piatt, Ltd. . .
Fleming & Ferguson, Ltd.
Fraser & Chalmers, Ltd. .

Gimson & Co

Glenfield & Kennedy, Ltd
Goddard, Massey & Warner
Greenwood & Batley, Ltd.
Gunther, W., & Sons .

Gwynnes, Ltd

Hall, J. P., & Sons, Ltd. .

Hartnell Wilson, & Co., Ltd.

Haslam Foundry and Engineering

Co.; Ltd

Crown Court, Old Broad Street,

London, E.C.
New Broad Street, London, E.C.
Irlam, Manchester.
Culwell Works, Wolverhampton.
Gloucester.
Paisley, N.B.
Erith and London Wall Buildings,

London, E.C.
Vulcan Road, Leicester.
Kilmarnock, N.B.
Nottingham.

Albion Works, Leeds, Yorks.
Central Works, Oldham, Lanes.
8i, Cannon Street, London, E.C.
London Road, Peterborough.
Volt Works, Leeds, Yorks.

Derby.
73

DIRECTORY OF MANUFACTURERS

Haste Patent Pump Co. . . . Crown Court, Old Broad Street,

London.

Hathorn, Davey & Co., Ltd. . . Sun Foundry, Leeds, Yorks.

Hayward-Tyler & Co., Ltd. . . 90, Whitecross Street, London, E.C.

Heenan & Froude, Ltd. . . . Aston, Birmingham, and Manchester.

Hindley, E. S Bourton, Dorset.

Holden & Brook, Ltd Gorton, Manchester.

Hole & Roberts Warminster, Wilts.

Hornsby, Richard, & Sons, Ltd. . Grantham.

Howes, S., & Co 64B, Mark Lane, London, E.C.

Hughes & Lancaster .... 47, Victoria Street, Westminster,

London, and Ruabon.

Isca Foundry Co Newport, Mon.

Isler, C, & Co Bear Lane, Southwark, London, S.E.

Jackson, P. R., & Co., Ltd. . . Salford Rolling Mills, Manchester.

Jessop & Appleby Brothers . . Leicester and London.

Joicey, J. &G., & Co Newcastle-on-Tyne.

King, R. A., & Co St. Enoch's Square, Glasgow, N.B.

Kirkaldy, John, Ltd Leadenhall Street, London, E.C.

Lancaster & Tonge, Ltd. . . . Pendleton, Manchester.

Leadbeater & Gill Holbeck Lane, Leeds, Yorks.

Lee, Howl & Co., Ltd Tipton, Staffs.

Llewellyn & Cubitt .... Rhondda Engine Works, Pentre,

Glam.

Lilleshall Co., Ltd Priors Lee Hall, Shifnal, Shropshire.

McBain, John Chirnside.

Maclellan, P. & W., Ltd. . . . Glasgow, N.B.

Marshall, Sons & Co., Ltd. . . Gainsborough.

Mather & Piatt, Ltd Salford Ironworks, Manchester.

Matthews, William, E., & Co. . . Moston Lane, Manchester.

Mavor & Coulson, Ltd. . . Broad Street, Glasgow, N.B.

Merryweather & Sons, Ltd. . . Long Acre, London, W.C.

Middleton, Robert .... Sheepscar Foundry, Leeds, Yorks.

Millar, J. S.& Son Annan, N.B.

Mills, Edwin, & Son .... Aspley Ironworks, Huddersiield,

Yorks.

Mills, Geo., & Co Radcliffe, near Manchester.

Mirrless, Watson & Co., Ltd. . . Scotland Street, Glasgow, N.B.

Morland, Richard, & Sons, Ltd. . Old Street, London, E.C.

Mumford, A. G Culver Works, Colchester.

Musgrave Brothers .... Crown Point Foundry, Leeds, Yorks.

Neill, W., & Son, St. Helens Junction, Lanes.

Newton, Fish & Co Newton Heath, Manchester.

Owen, S., & Co Tooly Street, London, E.C.

Parsons, C. A., & Co Heaton Works, Newcastle-on-Tyne.

TRADE INQUIRY FORM.— TO BE TORN OUT.

Name of Enquirer
Address

City County

Business

Established P^''"'"''!'; I

I. or Retail?/

To the Secretary,

National Engineering and Trade Lectures,

Orchard House, Westminster, London,

England.

Or to—

'Messrs.

Address

]Ma}nifacturers directs

if preferred.

Enafland.

Please have sent to the above address, catalogues prices and other
information concerning the machinery or goods enumerated below.

^Merchants in all parts of the world are invited to make jree use of these forms
when they desire information about anything made in Great Britain, inquiries

ARE ANSWERED WITHOUT CHARGE, AND SHOULD ALWAYS BE OF A SPECIFIC — NOT
GENERAL — CHARACTER.

DIRECTORY OF MANUFACTURERS

Pearn, Frank, & Co., Ltd. . . . Gorton, Manchester.

Petter, J. B., & Sons .... Yeovil, Somerset.

Potter, A. C, & Co Lant Street, Borough, London, S.E.

Prachitt Brothers Carhsle.

Pulsometer Engineering Co., Ltd. . Reading, Berks.

Ransomes & Rapier, Ltd. . . Waterside Works, Ipswich.

Reader, E., & Sons, Ltd. . . . Nottingham.

Richards, R., & Co Upper Ground Street, London, S.E.

Rimington Brothers, .... Abbey Street, Carlisle.

Roberts, E., & H., Ltd. . . . Deanshanger Ironworks, Stony Strat-
ford, Bucks.

Roberts, J. & S., Ltd West Bromwich.

Robey & Co., Ltd Globe Works, Lincoln.

Roger, R., & Co., Ltd. . . . Stockton-on-Tees.

Royce, Ltd Manchester.

Ruston, Proctor, & Co., Ltd. . . Lincoln.

Samuelson & Co., Ltd. . . . Banbury, Oxon.

Sandycroft Foundry Co., Ltd. . Chester.

Saunderson, H. B., & Co., Ltd. . Elstow Works, Bedford.

Scott, Ernest, & Mountain, Ltd. . Close Works, Newcastle-on-Tyne.

Shore & Sons Albion Foundry, Etruria, Stoke-on-
Trent.

Siebe, Gorman & Co Westminster Bridge Road, London,

S.E.

Simons, W., & Co., Ltd. . . . Renfrew, N.B.

Simpson, James, & Co., Ltd. . . London and Newark-on-Trent.

Slee, John, & Co Earlstown, Lanes.

Smith, John, & Co Grove Works, Carshalton, Surrey.

Spenser, W. H., & Co Hitchin, Herts.

Stannah, J Skin Market Place, Bankside, Lon-
don, S.E.

Stewart, D., & Co. (1902), Ltd. . London Road Ironworks, Glasgow,

N.B.

Sykes, Henry, Ltd Bankside, London, S.E.

Tangyes, Ltd Cornwall Works, Birmingham.

Thom, John G Canal Works, Patricroft, Manchester.

Thomas & Son Broad Street, Worcester.

Thwaites Brothers, Ltd. . . . Bradford, Yorks.

Tickle Brothers Vulcan Foundry, Wigan, Lanes.

Titt, John WaUis Warminster, Wilts.

Uskside Engineering and Rivet Newport, Mon.
Co., Ltd.

Valor & Co., Ltd Birmingham.

Vau.xhall Ironworks Co., Ltd. . Wandsworth, London, S.W.

Vosper & Co., Ltd Portsmouth.

DIRECTORY OF MANUFACTURERS

Waller, George, & Son . . . Stroud, Gloucester.

Waterspout Engineering Co. . . North Parade, Parsonage, Man-
chester.

Watson, Henry, & Sons . . . High Bridge Works, Newcastle-on-

Tyne.

Warner, R., & Co Queen Victoria Street, London, E.C.

Weir, G. & J., Ltd Cathcart, Glasgow, N.B.

Willcox, W. H. & Co. ... Southwark Street, London, S.E.

Williams, T. C, & Sons, Ltd. . Reading, Berks.

Wood, John, & Sons, Ltd. . . Brook Foundry & Engineering

Works, Wigan, Lanes.

Wrekin Foundry, Ltd. .... Wellington, Shropshire.

TRADE INQUIRY FORM.— TO BE TORN OUT.

Name of Enquirer

Address

City County

Business

Established /wholesale^

To the Secretary,

National Engineering and Trade Lectures,

Orchard House, Westminster, London,

England.
Or to—

Manufacturers dirccl-
if preferred-

Messrs.

England.

Please have sent to the above address, catalogues prices and other
information concerning the machinery or goods enumerated below.

^^^W Alerchanis in all parts of the wor/i/ are invited to make Jree use of these forms
when they desire information about anytiiiuv; made in Great Britain. INfjuiRIES

ARE ANSWERED WITHOUT CHARGE, AND SHOULD ALWAYS BE OF A STECIFIC — NOT
GENERAL — CHARACTER.

classified List of British Manufacturers of
Pumps and Pumping Engines

Acid Pumps.

Bailey, W. H., & Co Albion Works, Salford, Manches-
ter.
Evans, Joseph, & Sons . . . Wolverhampton.

Hayward-Tyler & Co 90, Whitecross Street, London,

E.C.

Air Pumps.

Bailey, W. H., & Co Albion Works, Salford, Manches-
ter.

Coalbrookdale Ironworks . . . Coalbrookdale, Shropshire.

Davey, Paxman & Co., Ltd. . . Colchester.

Edwards' Air Pump Co., Ltd. . 3, Crown Court, Old Broad Street,

London, E.C.

Evans, Joseph, & Sons . . . Wolverhampton.

Fairbairn, Lawson, Combe, Bar- 52, Lime Street, London, E.C.
ber, Ltd.

Eraser & Chalmers, Ltd. ... 3, London Wall Buildings, Lon-
don, E.C.

Galloways, Ltd Knott Mill, Manchester.

Hathorn, Davey & Co., Ltd. . . Sun Foundry, Leeds, Yorkshire.

Hayward-Tyler & Co 90, Whitecross Street, London,

E.C.

Marshall, Sons & Co Gainsborough.

Pearn, F., & Co., Ltd West Gorton, Manchester.

Roby & Co., Ltd Lincoln.

Tangyes, Ltd Birmingham.

Ammoniacal Liquor Pumps.

Evans, Joseph, & Sons. . . . Wolverhampton.
Hayward-Tyler & Co. ... 90, Whitecross Street, London,

E.C.
Haslam Foundry and Engineering Derby.
Co., Ltd.

CLASSIFIED LIST OF MANUFACTURERS

Artesian Well Pumps.

Bailey, W. H., & Co., Ltd. . . Albion Works, Salford, Manches-
ter.

Batchelor, R. D 73, Queen Victoria Street, Lon-
don, E.C.

Beck & Co 130, Great Suffolk Street, South-

wark, London, S.E.

Duke & Ockenden Littlehampton and London.

Evans, Joseph, & Sons . . . Wolverhampton.

Hayward-Tyler & Co go, Whitecross Street, London,

E.C.

Isler, C, & Co Bear Lane, Southwark Street,

London, S.E.

Le Grand & Sutclifte .... 125, Bunhill Row, London, E.C.

Matthews, Thomas Pendleton, Manchester.

Richards, R., & Co Upper Ground Street, Black-
friars, London, S.E.

Stone & Co Deptford, London, S.E.

Ashley Pump.

Glenfield and Kennedy, Ltd. . Kilmarnock, N.B.

Belt Driven Pumps.

Bailey, W. H., & Co Albion Works, Salford, Manches-
ter.

Berry, H., & Co., Ltd. . . . Hunslet, Leeds, Yorkshire.

Brackett, F. W., & Co. . . . Hythe Bridge Works, Colchester.

Duke & Ockenden, Littlehampton and London.

Edwards' Air Pump Syndicate, 3, Crown Court, Old Broad Street,

Ltd. London, E.C.

Evans, Joseph, & Sons . . . Wolverhampton.

Fielding & Piatt, Ltd. . . . Gloucester.

Eraser & Chalmers, Ltd. ... 3, London Wall Buildings, Lon-
don, E.C.

Haste Pump Co., Ltd 3, Crown Court, Old Broad

Street, London, E.C.

Hathorn, Davey & Co. . . . Sun Foundry, Leeds, Yorkshire.

Hayward-Tyler & Co go, Whitecross Street, London,

E.C.

Leeds Engineering & Hydraulic Cross Stamford Street, Leeds,
Co., Ltd. Yorkshire.

Merryweather & Sons, Ltd. . . Greenwich Road, London, S.E.

Musgrave Brothers Crown Point Foundry, Leeds,

Yorkshire.
78

TRADE INQUIRY FORM.— TO BE TORN OUT.

Name of Enquirer
Address

City County

Business

Established ^ wholesale i

Lor Ret.iil?/

To the Secretary,

National Engineering and Trade Lectures,

Orchard House, Westminster, London,

England.
Or to—

'Messrs.

Addyess

Majin fact livers direct ^^

if preferred.

England.

Please have sent to the above address, catalogues prices and other
information concerning the machinery or goods enumerated below.

JMerchants ill ail parts of t lie world cire in' 'i ted to make Jree use of these forms
when they desire information about anything made in Great Britain, inquiries

ARE ANSWERED WITHOUT CHARGE, AND SHOULD ALWAYS BE OF A SPECIFIC — NOT
GENERAL — CHARACTER.

CLASSIFIED LIST OF MANUFACTURERS

Pearn, F., & Co., Ltd West Gorton, Manchester.

Rice & Co., Ltd EUand Road, Leeds, Yorkshire.

Scott, Ernest, & Mountain, Ltd. Close Works, Newcastle-on-Tyne.

Tangyes, Ltd Birmingham.

Tannett, Walker & Co., Ltd. . Hunslet, Leeds, Yorkshire.

Thwaites Brothers, Ltd. . . . Thornton Road, Bradford, York-
shire.

Warner, R., & Co 97, Queen Victoria Street, Lon-
don, E.C.

Boiler Feed Pumps.

Bailey, W. H., & Co., Ltd. . . Albion Works, Salford, Manches-
ter.
Cameron, J., Ltd Oldfield Road, Salford, Manches-
ter.

Carruthers, J. H., & Co. .
Clarke, Chapman, & Co., Ltd
Coalbrookdale Ironworks .
Cochrane, John.
Dempster, Moore & Co., Ltd.
Drum Engineering Co. .

Evans, Joseph, & Sons .
HaU, J. P., & Sons, Ltd. .

Polmadie Works, Glasgow, N.B.

Gateshead-on-Tyne.

Coalbrookdale, Shropshire.

Barrhead, N.B.

49, Robertson Street,Glasgow,N.B.

27, Charles Street, Bradford,

Yorkshire.
Wolverhampton.
Peterborough.

Haste Patent Pump Co., Ltd. . 3, Crown Court, Old Broad Street,

London, E.C.

Hayward-Tyler & Co. . . . qo, Whitecross Street, London,

E.C.

Hindley, E. S., & Sons . . . Bourton, Dorsetshire.

Mumford, A. G Culver Street, Colchester.

Owens, S., & Co Whitefriars Street, London, E.C.

Pearn, E., & Co., Ltd West Gorton, Manchester.

Shore, T., & Sons Etruria, Stoke-on-Trent.

Tangyes, Ltd Birmingham.

Tinker Brothers Wigan, Lancashire.

Vauxhall Ironworks Co., Ltd. . Wandsworth Road, London, S.W.

Warner, R., & Co 97, Queen Victoria Street, Lon-
don, E.C.

Weir, G. & J., Ltd Cathcart, Glasgow, N.B.

Westinghouse Brake Co., Ltd. . York Road, King's Cross, London,

Wnicox, W. H., & Co., Ltd. . . 23, Southwark Street, London,

S.E.

Wilson, Alex 172, Fenchurch Street, London,

E.C.
79

CLASSIFIED LIST OF MANUFACTURERS

Wilson, J. H., & Co Sandhills, Liverpool.

Bore-Hole Pumps.

Batchelor, R. D 73, Queen Victoria Street, Lon-
don, E.G.

Duke & Ockenden Littlehampton and London.

Hayward-Tyler & Co 90, Whitecross Street, London,

E.C.

Isler, C, & Co Bear Lane, Southwark Street,

London, S.E.

Le Grand & Sutcliffe .... 125, Bunhill Row, London, E.C.

Mather & Piatt, Ltd Salford, Manchester.

Matthews, Thomas .... Pendleton, Manchester.

Richards, R., & Co Upper Ground Street, Black-
friars, London, S.E.

Bucket Pumps.

Bailey, W. H., & Co., Ltd. . . . Albion Works,Salford, Manchester.

Barkley, Andrew, Sons & Co., Kilmarnock, N.B.

Ltd.

Beck & Co., Ltd 130, Great Suffolk Street, South-
wark, London, S.E.

Clay Cross Co Clay Cross, near Chesterfield.

Davey, Paxman & Co., Ltd. . . Colchester.

Duke & Ockenden .... Littlehampton and London.

Edwards' Air Pump Syndicate, 3, Crown Court, Old Broad Street,

Ltd. London, E.C.

Evans, Joseph, & Sons . . . Wolverhampton.

Fairbairn, Lawson, Combe, Bar- 52, Lime Street, London, E.C.

ber, Ltd.

Eraser & Chalmers, Ltd. ... 3, London Wall Buildings, Lon-
don, E.C.

Glenfield & Kennedy, Ltd. . . Kilmarnock.

Hathorn, Davey & Co. . . . Sun Foundry, Leeds, Yorkshire.

Isca Foundry & Engineering Co. Newport, Mon.

Isler, C, & Co Bear Lane, Southwark Street,

London, S.E.

Jessop & Appleby Brothers, Ltd. Leicester.

Le Grand & Sutcliffe .... 125, Bunhill Row, London, E.C.

Lilleshall Co., Ltd Oakengates, Shropshire.

Mather & Piatt, Ltd Salford, Manchester.

Merryweather & Sons, Ltd. . . Greenwich Road, London, S.E.

North Eastern Marine Engineer- South Dock, Sunderland.

ing Co., Ltd.

Perry, T., & Sons, Ltd. . . . Bilston, Staffordshire.

TRADE INQUIRY FORM.— TO BE TORN OUT.

Name of Enquirer

Address

City
Business

County

Established

y Wholesale \
lor Retail?)

To the Secretary,

National Engineering and Trade Lectures,

Orchard House, Westminster, London,

Engl
Or to —

Messrs.

AJJrcSS

Manufacturers direct

if preferred.

anc

England.

Please have sent to the above address, catalogues prices and other
information concerning the machinery or goods enumerated below.

'^^!W merchants in all parts of the world are iuvilcd to make jree use of these forms
ivlieu they desire information about auythin;^ made in Great Britain, inquiries

ARE ANSWERED WITHOUT CHARGE, ANIJ SHOULD ALWAYS HE OF A SI'ECIFIC — NOT
r.E-XERAL — CHARACTER.

CLASSIFIED LIST OF MANUFACTURERS

Robey & Co., Ltd Lincoln.

Stone & Co Deptford, London, S.E.

Uskside Engineering Co., Ltd. . Newport, Mon.

Centrifugal Pumps.

Allen, W. H., Sons & Co. . . . Queen's Engineering Works, Bed-

"'ford.

Cherry, John, & Sons .... Pump Works, Beverley, York-
shire.

Davey, Paxman & Co., Ltd. . . Colchester.

De Laval Steam Turbine Co., 84, Armley Road, Leeds, York-
Ltd. shire.

Drysdale & Co Bon Accord Engine Works, Glas-
gow, N.B.

Gilkes, G., & Co., Ltd Kendal.

Greenwood & Batley, Ltd. . . Armley Road, Leeds, Yorkshire.

Gunther, W., & Sons Central Works, Oldham, Lanca-
shire.

Gwynnes, Ltd 81, Cannon Street, London, E.C.

Mather & Piatt, Ltd Salford, Manchester.

Parsons, C. A., & Co Heaton Works, Newcastle-on-

Tyne.

Ransome, A., & Co., Ltd. . . . Newark-on-Trent.

Ransomes & Rapier, Ltd. . . Waterside Ironworks, Ipswich.

Robey & Co., Ltd Lincoln.

Ruston, Proctor & Co., Ltd. . . Lincoln.

Tangyes Limited Birmingham.

Thwaites Brothers, Ltd. . . . Thornton Road, Bradford, York-
shire.

Chemical Pumps.

Bailey, W. H., & Co., Ltd. . . Albion Works, Salford, Manches-
ter.
Evans, Joseph, & Sons . . . . Wolverhampton.

Hayward-Tyler & Co 90 Whitecross Street, London,

E.C.

Compressed Air Pumps.

Bailey, W. H., & Co., Ltd. . . Albion Works, Salford, Manches-
ter.
Evans, Joseph, & Sons . . . Wolverhampton.
Hathorn, Davey & Co., Ltd. . Sun Foundry, Leeds, Yorkshire.

Hajrward-Tyler & Co 90, Whitecross Street, London,

E.C.

Tangyes Limited Birmingham.

VOL. II. 81 G

CLASSIFIED LIST OF MANUFACTURERS

Concertina Pumps.

Glenfield & Kennedy, Ltd. . . Kilmarnock, N.B.
Mather & Piatt, Ltd Salford, Manchester.

Deep-Well Pumps.

Bailey, W. H., & Co., Ltd. . . Albion Works, Salford, Manches-
ter.

Barclay, Andrew, Sons & Co., Ltd. Kilmarnock, N.B.

Batchelor, R. D 73, Queen Victoria Street, Lon-
don, E.C.

Beck & Co., Ltd 130, Great Suffolk Street, South-

wark, London, S.E.

Campbell Gas Engine Co., Ltd. . Halifax, Yorkshire.

Duke & Ockenden Littlehampton and London.

Evans, Joseph, & Sons . . . Wolverhampton.

Glenfield & Kennedy, Ltd. . . Kilmarnock, N.B.

Haste Patent Pump Co., Ltd. . 3, Crown Court, Old Broad Street,

London, E.C.

Hathorn, Davey & Co., Ltd. . . Sun Foundry, Leeds, Yorkshire.

Hajrward-Tyler & Co go, Whitecross Street, London,

E.C.

Hornsby, R., & Sons, .... Grantham.

Isca Foundry & Engineering Co. Newport, Mon.

Isler, C, & Co Bear Lane, Southwark Street,

London, S.E.

Jessop & Appleby Brothers, Ltd. Leicester.

Le Grand & Sutclifte .... 125, Bunhill Row, London, E.C.

Lilleshall Co., Ltd Oakengates, Shropshire.

Mather & Piatt, Ltd Salford, Manchester.

Moreland, Richard, cS: Son, . . Old Street, London, E.C.

Perry, T., & Sons, Ltd Bilston, Staffordshire.

Stothert & Pitt, Ltd Bath.

LTskside Engineering Co., Ltd. . Newport, Mon.

Warner, R., & Co 97, Queen Victoria Street, Lon-
don, E.C.

Willcox, W. H., & Co., Ltd.. . 23, Southwark Street, London,

S.E.

Diaphragm Pumps.

Duke & Ockenden Littlehampton and London.

Evans, Joseph, & Sons . . . Wolverhampton.

Direct-Acting Steam Pumps.

Bailey, W. H., & Co., Ltd. . . Albion Works, Salford, Manches-
ter.
82

TRADE INQUIRY FORM.— TO BE TORN OUT.

Name of Enquirer

Address

City County

Business

Established (Wholesale |

I or Retail? )

To the Secretary,

National Engineering and Trade Lectures,

Orchard House, Westminster, London,

England.
Or to —

Messrs.

Address

I\fa?iiifacinrers direct

if preferred.

England.

Please have sent to the above address, catalogues prices and other
information concerning the machinery or goods enumerated below.

^ Merchants in all parts of the zuorld arc invited to make Jree use of these forms
^- 1 'n- they desire information about anything made in Great Britain. IN(iuiRIES

APE ANSWERED WITHOUT CHARGE, AND SHOULD ALWAYS BE OF A SPECIFIC — NOT
(;E.\ERAL— CHARACTER.

CLASSIFIED LIST OF MANUFACTURERS

Berry, H., & Co., Ltd Hunslet, Leeds, Yorkshire.

Bever, Dorling & Co Bowling LonworlvS, Bradford,

Yorkshire.
Carruthers, J. H., & Co., Ltd. . Polinadie Works, Glasgow, N.B.

Chaphn, Alex., & Co Govan, Glasgow, N.B.

Clarke, Chapman & Co., Ltd. . . Gateshead-on-Tyne.

Coalbrookdale Ironworks . . . Coalbrookdale, Shropshire.

Cochrane, John Barrhead, N.B.

Cole, Marchant & Morley, Ltd. . Prospect Foundry, Bradford,

Yorkshire.

Evans, Joseph, & Sons . . . Wolverhampton.

Fielding & Piatt, Ltd Gloucester.

Hall, J. P., & Sons, Ltd. . . . Peterborough.

Haste Patent Pump Co., Ltd. . 3, Crown Court, Old Broad Street,

London, E.C.

Hathorn, Davey & Co., Ltd. . . Sun Foundry, Leeds, Yorkshire.

Hajrward-Tyler & Co 90, Whitecross Street, London,

E.C.

Hindley, E. S., & Sons .... Bourton, Dorsetshire.

Merryweather & Sons, Ltd. . . Greenwich Road, London, S.E.

Mumford, A. G Colchester.

Owens, S., & Co Whitefriars Street, London, E.C.

Pearn, F., & Co., Ltd West Gorton, Manchester.

Shore, T., & Sons Etruria, Stoke-on-Trent.

Tangyes Limited Birmingham.

Warner, R., & Co 97, Queen Victoria Street, Lon-
don, E.C.

Weir, G. &J., Ltd Cathcart, Glasgow, N.B.

Westinghouse Brake Co., Ltd. . York Road, King's Cross, London,

Donkey Pumps.

Bailey, W. H., & Co., Ltd. . . Albion Works, Salford, Manches-
ter.
Belliss & Morcom, Ltd. . . . Ledsom Street, Birmingham.
Brazil, Holborow & Straker, Ltd. Vulcan Works, Bristol.
Cameron, John, Ltd Oldfield Road, Salford, Manches-
ter.
Carruthers, J. H., & Co., Ltd. . Polmadie Works, Glasgow, N.B.

Chaplin, Alex., & Co Govan, Glasgow, N.B.

Clarke, Chapman, & Co., Ltd. . Gateshead-on-Tyne.
Coalbrookdale Ironworks . . . Coalbrookdale, Shropshire.
Cole, Marchant & Morley, Ltd. . Prospect Works, Bradford, York-
shire.
83

CLASSIFIED LIST OF MANUFACTURERS

Coles, H. J London Crane Works, Derby.

Crow, Harvey & Co Park Grove Ironworks, Glasgow.

Dempster, Moore & Co. . . . 49, Robertson Street, Glasgow,

N.B.

Dodman, A., & Co King's Lynn.

Drum Engineering Co. . . . 27, Charles Street, Bradford,

Yorkshire.

Evans, Joseph, & Sons . . . Wolverhampton.

Hall, J. P., & Sons, Ltd. . . . Peterborough.

Hayward-Tyler & Co 90, Whitecross Street, London,

E.C.

Hindley, E. S., & Sons .... Bourton, Dorsetshire.

Mumford, A. G Culver Street, Colchester.

Peam, F., & Co., Ltd West Gorton, Manchester.

Shore, T., & Sons Etruria, Stoke-on-Trent.

Tangyes Limited Birmingham.

Tinker Brothers Wigan, Lancashire.

Toward, T., & Co 9, St. Lawrence, Newcastle-on-

Tyne.

Vauxhall Ironworks Co., Ltd. . Wandsworth Road, London, S.W.

Vosper & Co., Ltd Portsmouth.

Warner, R., & Co 97, Queen Victoria Street, Lon-
don, E.C.

Weir,G.&J.,Ltd Cathcart, Glasgow, N.B.

Westinghouse Brake Co., Ltd. . York Road, King's Cross, Lon-
don, N.

Willcox, W. H., & Co., Ltd. . . 23, Southwark Street, London,

S.E.

Wilson, Alex 172, Fenchurch Street, London,

E.C.

Wilson, J. H., & Co., Ltd. . . Sandhills, Liverpool.

Driven Tube-Well Pumps.

Duke & Ockenden Littlehampton and London.

Hayward-Tyler & Co 90, Whitecross Street, London,

E.C.
Isler & Co Bear Lane, Southwark Street,

London, S.E.
Le Grand & Sutcliffe . . . . 125, Bunhill Row, London, E.C.

Mather & Piatt, Ltd Salford, Manchester.

Matthews, Thomas Pendleton, Manchester.

Matthews, William, & Co. . . . Kluff Road, Manchester.

DuPLE.x Diaphragm Pumps.

Duke & Ockenden Littlehampton and London.

TRADE INQUIRY FORM.— TO BE TORN OUT.

Name of Enquirer
Address

City County

Business

Established P^'*'"'"^!'; \

\or Retail?/

To the Secretary,

National Engineering and Trade Lectures,

Orchard House, Westminster, London,

England.
Or to—

'Messrs.

AdJress

Maiuifacturers direct.

if preferred.

England.

Please have sent to the above address, catalogues prices and other
information concerning the machinery or goods enumerated below.

^Merchants in all parts of the zvorld are invited to make Jree use of these forms
when they desire information about anything made in Great Britain. INQUIRIES

ARE ANSWERED WITHOUT CIIAKflE, AND SHOULD ALWAYS BE OF A SPECIFIC—NOT
GENERAL — CHARACTER.

CLASSIFIED LIST OF MANUFACTURERS

Duplex Pumps.

Arrol, Sir W., & Co., Ltd. . . . Dalmarnock Ironworks, Glasgow,

N.B.

Bailey, W. H., & Co Albion Works, Salford, Manches-
ter.

Bever, Dorling & Co Bowling Ironworks, Bradford,

Yorkshire.

Brazil, Holborow & Straker, Ltd. Vulcan Works, Bristol.

Carruthers, J. H., & Co., Ltd. . Polmadie Works, Glasgow, N.B.

Coalbrookdale Ironworks . . . Coalbrookdale, Shropshire.

Cole, Marchant & Morle}/, Ltd. . Prospect Foundry, Bradford,

Yorkshire.

Evans, Joseph, & Sons . . . Wolverhampton.

Fielding & Piatt, Ltd Gloucester.

Hayward-Tyler & Co 90, Whitecross Street, London,

E.C.

Hindley, E. S., & Sons . . . . Bourton, Dorsetshire.

Mumford, A. G Culver Street, Colchester.

Pearn, F., & Co West Gorton, Manchester.

Tangyes Limited Birmingham.

Electrically Driven Pumps.

Bailey, W. H., & Co., Ltd. . . . Albion Works, Salford, Manches-
ter.

Barclay, Andrew, Sons & Co., Ltd. Kilmarnock, N.B.

Clarke, Chapman & Co., Ltd. . Gateshead-on-Tyne.

Evans, Joseph, & Sons . . . Wolverhampton.

Eraser & Chalmers, Ltd. ... 3, London Wall Buildings, Lon-
don, E.C.

Gwynnes Limited 81, Cannon Street, London, E.C.

Hathorn, Davey & Co., Ltd. . . Sun Foundry, Leeds, Yorkshire.

Hartnell, W., & Co., Ltd. . . . Volt Works, Leeds, Yorkshire.

Hayward-Tyler & Co 90, Whitecross Street, London E.C.

Jackson, P. R., & Co., Ltd. . . Manchester.

Mather & Piatt, Ltd Salford, Manchester.

Merryweather & Sons, Ltd. . . Greenwich Road, London, S.E.

Pearn, F., & Co., Ltd West Gorton, Manchester.

Scott, Ernest, & Mountain, Ltd. Close Works, Newcastle-on-Tyne.

Tangyes Limited Birmingham.

Warner, R., & Co 97, Queen Victoria Street, Lon-
don, E.C.

Geared Pumps.

Bailey, W. H., & Co., Ltd. . . Albion Works, Salford, Manches-
ter.
85

CLASSIFIED LIST OF MANUFACTURERS

Barclay, Andrew, Sons & Co., Ltd.
Beck & Co., Ltd

Belliss & Morcom, Ltd. .

Berry, H., & Co., Ltd

Braxil, Holborow, & Straker, Ltd.

Bumstead & Chandler

Caird & Rayner

Caledonian Engineering & Ship-
building Co.

Campbell Gas Engine Co., Ltd. .

Chaplin, Alex., & Co

Clarke, Chapman & Co., Ltd. .

Coalbrookdale Ironworks .

Dodman, A., & Co., Ltd. .

Dudbridge Ironworks ....

Duke & Ockenden

Evans, Joseph, & Sons .

Fairbairn, Lawson, Combe, Bar-
ber, Ltd.

Fielding & Piatt, Ltd. . . .

Eraser & Chalmers, Ltd. .

Galloways, Limited ....
Glamorgan Engineering Co., Ltd.
Glenfield & Kennedy, Ltd. .
Greenwood & Batley, Ltd. .
Hanna, Donald & Wilson .
Hartnell, W., & Co., Ltd. . . .
Haste Patent Pump Co., Ltd. .

Hathorn, Davey & Co., Ltd. .
Hayward-Tyler & Co

Hornsby, R., & Sons, Ltd. .
Hughes & Lancaster

Hunter & English

Jackson, P. R., & Co., Ltd. . .
Jessop & Appleby Brothers, Ltd.
Leeds Engineering & Hydraulic
Co.

Mather c^ Piatt, Ltd

Merryweather & Sons, Ltd. .

Owens, S., & Co

Kilmarnock, N.B.

130, Great Suffolk Street, South-

wark, London, S.E.
Ledsam Street, Birmingham.
Hunslet, Leeds, Yorkshire.
Vulcan Works, Bristol.
Hednesford, Staffordshire.
777, Commercial Road, London, S.
Preston, Lancashire.

Halifax, Yorkshire.

Govan, Glasgow, N.B.

Gateshead-on-Tyne.

Coalbrookdale, Shropshire.

King's Lynn.

Stroud, Gloucestershire.

Littlehampton and London.

Wolverhampton.

52, Lime Street, London, E.C.

Gloucester.

3, London Wall Buildings, Lon-
don, E.C.

Knott Mill, Manchester.

Swansea.

Kilmarnock, N.B.

Albion Works, Leeds, Yorkshire.

Paisley, N.B.

Volt Works, Leeds, Yorkshire.

3, Crown Court, Old Broad Street,
London, E.C.

Sun Eoundry, Leeds, Yorkshire.

go, Whitecross Street, London,
E.C.

Grantham.

47, Victoria Street, Westminster,
London, S.W.

Bow, London, E.

Manchester.

Leicester.

Cross Stamford Street, Leeds,
Yorkshire.

Salford, Manchester.

Greenwich Road, London, S.E.

Whitefriars Street, London, E.C.

TRADE INQUIRY FORM.— TO BE TORN OUT.

Name of Enquirer

Address

City County

Business

Established i\vho\^i!,ie^

|_or Rctail?J

To the Secretary,

National Engineering and Trade Lectures,

Orchard House, Westminster, London,

England.
Or to—

Messrs.

Address

Ma>iufacturers direct

if preferred.

England.

^ o

Please have sent to the above address, catalogues prices and other
information concerning the machinery or goods enumerated below.

^Merchants in all farts of the world are invited to mal;e Jrce use of these forms
when they desire information about anytliing made in Great Britain. iNfUJn^IES

ARE ANSWERED WITHOUT CHARGE, AND SHOULD ALWAYS BE OF A SLECILIC — NOT
GENERAL — CHARACTER.

CLASSIFIED LIST OF MANUFACTURERS

Parsons, C. A., & Co Heaton Works, Newcastle- on-

Tyne.

Pearn, F., & Co., Ltd West Gorton, Manchester.

Piercy & Co Broad Street Engine Works, Bir-
mingham.

Reader, E., & Sons, Ltd. . . . Nottingham.

Renshaw, W. R., & Co., Ltd. . . Phoenix Works, Stoke-on-Trent.

Rice & Co., Ltd Elland Road, Leeds, Yorkshire.

Robey & Co., Ltd Lincoln.

Roger, R., & Co., Ltd Stockton-on-Tees.

Scott, Ernest, & Mountain, Ltd. Close Works, Newcastle-on-Tyne.

Simons, W., & Co., Ltd.. . . Renfrew, N.B.

Tannett, Walker & Co., Ltd. . . Hunslet, Leeds, Yorkshire.

Uskside Engineering Co., Ltd. . Newport, Mon.

Warner, R., & Co 97, Queen Victoria Street, Lon-
don, E.C.

West Hydraulic Engineering Co., 23, College Hill, London, E.C.
Ltd.

Haste Pump.

Haste Patent Pump Co., Ltd. . 3, Crown Court, Old Broad Street,

London, E.C.

Hand Pumps.

Bailey, W. H., & Co., Ltd. . . Albion Works, Salford, Manches-
ter.

Baker's Patent Appliances Co., Melrose Street Works, Scar-
Ltd. borough.

Beck & Co., Ltd 130, Great Suffolk Street, South-

wark, London, S.E.

Coalbrookdale Ironworks, Ltd. . Coalbrookdale, Shropshire.

Evans, Joseph, & Sons . . . Wolverhampton.

Hayward-Tyler & Co 90, Whitecross Street, London,

E.C.

Tangyes Limited Birmingham.

Willcox, W. H., & Co., Ltd. . . 23, Southwark Street, London,

S.E.

Hot Air Engine Pumps.

Bailey, W. H., & Co., Ltd. . . Albion Works, Salford, Manches-
ter.
Hayward-Tyler & Co 90, Whitecross Street, London.E.C.

Inertia Pumps.

Haste Patent Pump Co., Ltd. . 3, Crown Court, Old Broad Street,

London, E.C.

CLASSIFIED LIST OF MANUFACTURERS

Multiple Diaphragm Pumps.
Duke & Ockenden . . . .

Plunger Pumps.
Bailey, W. H., & Co., Ltd. . .

Barclay, Andrew, Sons & Co., Ltd.
Beck & Co., Ltd

Berry, H., & Co., Ltd

Bever, Dorling & Co

Cameron, J., Ltd.

Campbell Gas Engine Co., Ltd. .
Carruthers, J. H., & Co., Ltd. .

Chaplin, Alex., & Co

Clarke, Chapman, & Co., Ltd. .
Coalbrookdale Ironworks .

Cochrane, John

Fairbairn, Lawson, Combe, Bar-
ber, Ltd.
Fielding & Piatt, Ltd. . . .
Fraser & Chalmers, Ltd. .

Grange Ironworks ....
Haste Patent Pump Co., Ltd.

Hathorn, Davey & Co., Ltd. .
Hayward-Tyler & Co. .

Hindley, E. S., & Sons .
Jackson, P. R., & Co., Ltd. .
Leeds Engineering and Hydraulic
Co.

Lilleshall Co., Ltd

Mather & Piatt, Ltd

Moreland, Richard, & Son .

Mumford, A. G

Owens, S., & Co

Pearn, F., & Co., Ltd

Perry, T., & Sons, Ltd. . . .

Robey & Co., Ltd

Scott, Ernest, & Mountain, Ltd.
Stone & Co

Littlehampton and London.

Albion Works, Salford, Manches-
ter.

Kilmarnock, N.B.

130, Great Suffolk Street, South-
wark, London, S.E.

Hunslet, Leeds, Yorkshire.

Bowhng Ironworks, Bradford,
Yorkshire.

Oldfield Road, Salford, Manches-
ter.

Halifax, Yorkshire.

Polmadie Works, Glasgow, N.B.

Govan, Glasgow, N.B.

Gateshead-on-Tyne.

Coalbrookdale, Shropshire.

Barrhead, N.B.

52, Lime Street, London, E.C.

Gloucester.

3, London Wall Buildings, Lon-
don, E.C.

Durham.

3, Crown Court, Old Broad Street,
London, E.C.

Sun Foundry, Leeds, Yorkshire.

90, Whitecross Street, London,
E.C.

Bourton, Dorsetshire.

Salford Rolling Mills, Manchester.

Cross Stamford Street, Leeds,
Yorkshire.

Oakengates, Shropshire.

Salford, Manchester.

Old Street, London, E.C.

Culver Works, Colchester.

Whitefriars Street, London, E.C.

West Gorton, Manchester.

Bilston, Staffordshire.

Lincoln.

Close Works, Newcastle-on-Tyne.

Deptford, London, S.E.

TRADE INQUIRY FORM.— TO BE TORN OUT.

Name of Enquirer
Address

City County

Business

Established / wholesale )

l_or Retail?/

To the Secretary,

National Engineering and Trade Lectures,

Orchard House, Westminster, London,

England.
Or to—

'Messrs.

Add,-
Manii/attiirt'rs directs
if prt:ft'rred.

England.

Please have sent to the above address, catalogues prices and other
information concerning the machinery or goods enumerated below.

^Merchants in all parls of the world are invited to make Jree use of these forms
ivheii thev desire information abont anything made in Great Britain, inquiries
ARE ANSWERED WITHOUT CHARGE, AND SHOULD ALWAYS BE OF A SPECIFIC — NOT
GENERAL — CHARACTER.

CLASSIFIED LIST OF MANUFACTURERS

Stothert & Pitt, Ltd Bath.

Tangyes Limited Birmingham.

Thwaites Brothers, Ltd. . . . Thornton Road, Bradford, Yorks.

Uskside Engineering Co., Ltd. . Newport, Mon.

Vauxhall Ironworks Co., Ltd. . Wandsworth Road, London, S.W.

Warner, R., & Co 97, Queen Victoria Street, Lon-
don, E.C.

Willcox, W. H., & Co., Ltd. . 23, Southwark Street, London,

S.E.

Wilson, Alex 172, Fenchurch Street, London,

E.C.
Petroleum Pumps.

Evans, Joseph, & Sons . . . Wolverhampton.

Hayward-Tyler & Co 90, Whitecross Street, London,

E.C.

Power Pumps [see Belt Driven Pumps).

Pulsating Steam Pumps.

Bailey, W. H., & Co., Ltd. . . Albion Works, Salford, Manches-
ter.

EUison, W. T., & Co., Ltd. . . Manchester.

Evans, Joseph, & Sons . . . Wolverhampton.

Holden & Brooke, Ltd. . . . Sirius Works, Manchester.

Pulsometer Engineering Co., Ltd. Reading and London.

Waterspout Engineering Co., Ltd. Manchester.

Quadruple Diaphragm Pumps.

Duke & Ockenden Littlehampton and London.

Quadruple Semi-Rotary Pumps.

Duke & Ockenden Littlehampton and London.

Evans, Joseph, & Sons . . . Wolverhampton.

Quicksilver Pumps.
Eraser & Chalmers, Ltd. ... 3, London Wall Buildings, Lon-
don, E.C.

Ram Pumps {see Plunger Pumps).

Rope Driven Pumps.
Bailey, W. H., & Co., Ltd. . . Albion Works, Salford, Manches-
ter.
Barclay, Andrew, Sons, & Co., Kilmarnock, N.B.
Ltd.

VOL. II. 89 H

CLASSIFIED LIST OF MANUFACTURERS

Campbell Gas Engine Co., Ltd.
Clarke, Chapman & Co., Ltd.
Dudbridge Ironworks .
Evans, Joseph, & Sons .
Fielding & Piatt, Ltd. . . .
Eraser & Chalmers, Ltd. .

Haste Patent Pump Co., Ltd.

Hathorn, Davey & Co., Ltd. .
Hayward-Tyler & Co. .

Pearn, F., & Co., Ltd. .

Scott, Ernest, & Mountain, Ltd,

Tangyes Limited

Uskside Engineering Co., Ltd.

Halifax, Yorkshire.

Gateshead-on-Tyne.

Stroud, Gloucestershire.

Wolverhampton.

Gloucester.

3, London WaU Buildings, Lon-
don, E.C.

3, Crown Court, Old Broad Street,
London, E.C.

Sun Foundry, Leeds, Yorkshire.

90, Whitecross Street, London,
E.C.

West Gorton, Manchester.

Close Works, Newcastle-on-Tyne.

Birmingham.

Newport, Mon.

Rotary Pumps.
Bailey,W. H.,&Co., Ltd..

Brackett, F. W., & Co. .
Drum Engineering Co. .

Evans, Joseph, & Sons .

Albion Works, Salford, Manches-
ter.

Hythe Bridge Works, Colchester.

27, Charles Street, Bradford,
Yorkshire.

Wolverhampton.

Semi-Rotary Pumps.
Evans, Joseph, & Sons

Wolverhampton.

Sewage Pumps.

Barclay, Andrew, Sons & Co., Ltd. Kilmarnock, N.B.

Davey, Paxman, & Co., Ltd. . Colchester.

Fairbairn, Lawson, Combe, Bar- 52, Lime Street, London, E.C.

ber, Ltd.

Hathorn, Davey, & Co., Ltd. . Sun Foimdry, Leeds, Yorkshire.

Lilleshall Co., Ltd Oakengates, Shropshire.

Mather & Piatt, Ltd Salford, Manchester.

Simpson, James, & Co., Ltd. . Grosvenor Road, London, S.W.

Sinking Pumps.

Bailey, W. H., & Co., Ltd. . . Albion Works, Salford, Manches-
ter.
Evans, Joseph, & Sons . . . . Wolverhampton.

Hayward-Tyler & Co 90, Whitecross Street, London,

E.C.
90

TRADE INQUIRY FORM.—TO BE TORN OUT.

Name of Enquirer
Address

City County

Business

Established / wholesale \

I. or Retail?)

To the Secretary,

National Engineering and Trade Lectures,

Orchard House, Westminster, London,

England.
Or to—

Messrs.

Address

Ma}iufacturers direct

if preferred.

England.

Please have sent to the above address, catalogues prices and other
information concerning the machinery or goods enumerated below.

Merchants in all parts of the world are invited to make Jree use of these forms
when they desire information about anything made in Great Britain. INQUIRIES

ARE A.NSWERED WITHOUT CHARGE, AND SHOULD ALWAYS BE OF A SPECIFIC — NOT
GENERAL — CHARACTER.

CLASSIFIED LIST OF MANUFACTURERS

Peam, F., & Co., Ltd West Gorton, Manchester.

Tangyes Linxited Birmingham.

Slime Pumps.

Coalbrookdale Ironworks . . . Coalbrookdale, Shropshire.

Evans, Joseph, & Sons . . . Wolverhampton.

Hayward-Tyler & Co 90, Whitecross Street, London,

E.C.

Sludge Pumps {see Slime Pumps).

Spray Pumps.

Bailey, W. H., & Co., Ltd. . . Albion Works, Salford, Manches-
ter.
Duke & Ockenden Littlehampton.

Syphon Pumps.

Batchelor, R. D 73, Queen Victoria Street, Lon-
don, E.C.

Duke & Ockenden Littlehampton and London.

Isler, C, & Co Bear Lane, Southwark Street,

London, S.E.

Titt, James Wallis Warminster.

Warner, R., & Co 97, Queen Victoria Street, Lon-
don, E.C.

Tube Well Pumps {see Artesian Well Pumps).

Bar Pumps {see Ammoniacal Liquor Pumps).

Triplex Diaphragm Pumps.

Duke & Ockenden Littlehampton and London.

Two AND Three Throw Pumps.

Bailey, W. H., & Co., Ltd. . . Albion Works, Salford, Manches-
ter.

Beck & Co., Ltd 130, Great Suffolk Street, South-
wark, London, S.E.

Evans, Joseph, & Sons . . . Wolverhampton.

Hayward-Tyler & Co 90, Whitecross Street, London,

E.C.

Jackson, P. R., & Co., Ltd. . . Salford, Manchester.

Peam, F., & Co., Ltd West Gorton, Manchester.

Scott, Ernest, & Mountain . . Close Works, Newcastle-on-Tyne.

CLASSIFIED LIST OF MANUFACTURERS

Tangyes Limited Birmingham.

Warner, R., & Co 97, Queen Victoria Street, Lon-
don, E.C.

Wall Pumps.

Bailey, W. H., & Co., Ltd. . . Albion Works, Salford, Manches-
ter.
Evans, Joseph, & Sons . . . Wolverhampton.

Hayvvard-Tyler & Co 90, Whitecross Street, London,

E.C.

Water Wheel Pumps {see Wind Motor Pumps).

Well Pumps {see Artesian Well Pumps).

Wind Motor Pumps.

Duke & Ockenden Littlehampton and London.

Picking, Hopkins & Co. . . . Arnold Works, Bow, London, E.

Titt, James Wallis Warminster.

TRADE INQUIRY FORM.— TO BE TORN OUT.

Name of Enquirer

Address

City County

Business

Established T^''"'""',';!

lor Retail?/

To the Secretary,

National Engineering and Trade Lectures,

Orchard House, Westminster, London,

England.
Or to—

'Messrs.

Adilress

Maniifaciurers direct ~,

if preferred.

England.

Please have sent to the above address, catalogues prices and other
information concerning the machinery or goods enumerated below.

^Merchants in all parts of the world are invited to make Jree use of tlicse forms
when they desire information about anything made in Great Britain. INQUIRIES
ARE ANSWERED WITHOUT CHARGE, AND SHOULD ALWAYS BE OF A SPECIFIC— NOI
GENERAL— CHARACTER.

VERTICAL TRIPLE- EXPANSION PUMPING ENGINE

DU TIES DBTAINIEDipoo-sSTEAM .
Leeds, (HSf^biNOLEY) Water Works 15U Millions
^Melbourne, SEWACEWoRKsHSi Millions
Odessa, Waterworks /58^ Millions
^^osARio, Water Works i6ii Millions

VOL. II.

ABSOLUTELY THE LATEST THING
IN WRITING MACHINES.

HAVE YOU SEEN THE NO. 5 DENSMORE?

IF NOT ! WHY NOT ?

WHEN IT CAN BE SEEN AND TESTED EREE OE CHARGE

Full Particulars on Application to

DENSMORE TYPEWRITER COMPANY,

18, HOLBORN VIADUCT, LONDON,

and
62, MARKET STREET, MANCHESTER,

26 & 27, BOND STREET, LEEDS,

3, CHERRY STREET, BIRMINGHAM,
27, DONEGAL STREET, BELFAST,

187, WEST GEORGE STREET, GLASGOW,

41, REFORM STREET, DUNDEE,
55 & 57, SHANDWICK PLACE, EDINBURGH,

37, TITHEBARN STREET, LIVERPOOL,

2, SMALL STREET, BRISTOL.

PUMPI\G

MACHINERY

LTD

WORKS,

^MACHINE TOOL MAKERS. ELECTRICAL ENGINEERS.
SDLE MAKERS or De Laval STEAM TURBINES,

TURBINE-DYNAMOS & TURBINE-BLOWERS

/so^ DeLwal Steam Turbine-Pump.

ZtleCCENTRiFucAi Pimps

np Auu sues pdr direct caupi.iNa tb

STEAH TURBINES or

ELECTRIC MOTORS.

TO WORK AGAINST Heads up to 600feet or>iore

iSPRCIAMTlES : ^

JUBH trfitmcV, " ^- ■ -^ RIND LUBRICATION.
SMALL WEIBHT. f^C^ VrC^ SELF-TIHHTENINa PACKINDS,
FACILITIES ForJNSIDE INSPEDTIDN NODIL CM ENTER PUMP-CASE
WITHOUT DISTURBIND PIPING . & BECOnE MIKED WITH THE

WATER.

Clarke, Chapman

^ & Co., Ltd.

GATESHEAD-ON-TYNE.

Manufacturers (if all Classes of

Electrical Machinery

and

Ships' Auxiliary Machinery

Contractors to
British and Foreign Governments.

STEAM
Windlasses, Winches, Capstans, Cranes.
Main Feed Pumps a Speciality. " Woodeson's
Patent" Condensers, with Air and Circulating
Pumps, Donkey Boilers, Water Tube Boilers.

ELECTRIC

Capstans, Cranes,

Hauling Gears,

Winches,

Windlasses ,

Alternators,

Dynamos

and

Motors

for

Continuous

and

3-Phase Current,

Combined Plants.

Messrs. Constable's List.

STEAM TURBINES.

With an Appendix on the Gas Turhinos and the Future <if Heal Engines, and 241 Cuts
and 3 Lithograph Tahles. Hy Dr. A. .ST(3nOLA. I'rioe 2L(. net.

QAS ENGINE DESIGN.

By C. h. LUClvE, Ph.D., Mechanical Kngineering Department, Columiiia University.
Demy Svo. Price I2j-. 6(!'. net.

THE FLOW OF STEAM THROUGH NOZZLES AND ORIFICES.

Experimental Researches. Ky A. RATEAU. IVice 4/. 6r/. net.

"A book essential to .-ill study of the various ste.im turbine problems."

MECHANICAL APPLIANCES.

(Second Series). By GARDNER D. HISCOX, M.E. Fully Illustrated. Demy Svo.
Price I2,f. 6d. net.

MECHANICAL MOVEMENTS: Power, Devices and Appliances.

(First Series). By GARDNER D. HISCOX. Demy Svo. I'rice I2j. 6,/. net.

STEAM PIPES: Their Design and Construction.

By W. H. BOOTH. Fully Illustrated. Price 51. net.

COMPRESSED AIR: Its Production, Uses and Appliances.

By r;ARDNER D. IIISCGX, M.E. Demy Svo. Price 20.f. net.

DIES: Their Construction and Use for the Modern Working of

Sheet Metals. ByJOSEPPI V. VVOODVVORTH. 34 Pages with 505 Illustra-
tions. Demy Svo. Price 12^. 6d. net.

SHOP KINKS

(Second Edition). By ROBERT GRIMSHAVV. A Book for Engineers and
Machinists. With 222 Ilhistrations. Price 10s. net.
" The book is indispens.-ible to every Machinist and Practical Engineer."

MAXWELL'S THEORY AND WIRELESS TELEGRAPHY.

Part I : MAXWELL'S THEORY AND HERTZIAN O.SCILLATIONS : By H.
POINCARF;, Translated )jy K. VREELAND. I'art II. : THE PRINCIPLES OF
WIRELESS TELEGRAPHY; By K. \'REELAND. Price lOf. 6d. net.

LIQUID FUEL AND ITS COMBUSTION.

By W. H. BOOTH. With about 120 Illustrations and Diagrams. Price 24j-. net.

REINFORCED CONCRETE.

By CHARLES F. MARSH, M.Insl.C.E. Fully Illustrated. 31.?. &/. net.

REFUSE DESTRUCTORS AND POWER PRODUCTION.

By F. GOODRICH. Fully Illustrated. Demy Svo. Price2U.net.

ELECTRIC FURNACES.

By J. WRIGHT. Demy Svo. Price Ss. 6d. net.

" 'J he Volume alloselher furnishes a valuable detailed account of a very iinpcrtant branch of electricity
lor iudusirial purposes."

ARCHIBALD CfJNSTABLE & CO., Ltd., 16, Jame, St., llaymnrket, London,

NATIONAL ENGINEERING
AND TRADE LECTURES.

A PROTECT TO STIMULATE AND EXPAND BRITISH

TRADE IN COLONIAL AND FOREIGN MARKETS BY

MEANS OF ILLUSTRATED LECTURES.

ASSI^I'KD nX TH V. Iln.^RI* OF TrAHK. .and fiTHt.R Gn\- K RXM F.X'l' D KP.A RT .M KN'TS, V.ARIDUS

CnlAINl.^L Go\'tHN.ME.N'IS, l^Rll'ISH CoNSUL.-XR OpHCEH^i, Ch.-\.MBKRS (IF COMMKRCF,

EmL'HiVEHS' FkDF. R.^TIONS, 'I^ECHN1C.\I. InS1"1TL"I"10\S, tTC.

6s, NET PER VOL.

Object.

nPHE primary object of this scheme of Lectures is to show Colonial
and foreign buyers what progress Great Britain has made up to the
present time in the manufacture of all classes of machinery and goods.
Each Lecture will emphasize novel points ot design and utility, and up-
to-date British methods of manufacture, and these points will be graphic-
ally illustrated in each Lecture, when delivered, by means of lantern
slide views, and in the printed copies b\' means of reproductions of photo-
graphs and drawings.

Lectures now being prepared.

The first British Industry to be dealt with is that of Engineering,
and the following Lectures are now in course of preparation : —

British Progress in Electrical Work.

Sir \\'illiam H. Prkece, K.C.D,, Past President of the Institution of Civil Engineers.

British Progress in Dynamo and Motor Construction.

J. SwiNBL'RNE, Past President iListitnte of Electrical Engineers.

The Progress of British Shipbuilding.

S.AMCF.L T- P. Tme.akle, Chief Ship Surveyor, Lloyds' Register of Shipping, Fellow Royal
School of Na\-al .Architecture, etc.

British Progress in Mechanical Road Traction.

CuL. K. E. Crccmi'Ton, M.Inst.C.E., Past President Institute Electrical Engineers.

British Progress in Steam Generation.

Prof, \V. RrrpEi^ iMI.Mcch.E,. Anthor of St^'aiu, Sft'a"! /LJii:/j!t' T!n-ory an<l P i-actice, tui.

British Progress in Steam Boiler Construction.

F. J. ROW.4N, .-\. M.I list. C,E., WA.Y..^.. hwlWn of The Practical riiviics ,-:ftlu- McJcrn Steam
Poller, etc.

The Selection of Boilers.

C. E. Stkome'iER. Chief Engineer Manchester Steam PTser.s' Association, Author of several impor-
tant works on the Construction, Care, and Working of Steant Boilers.

British Progress in Machine Tool Manufacture.

Jc.HN AsHKOKii, M.I.Mech.K., Author of Light Lathes and Sere:.' .Uachiiies, etc.

British Progress in Municipal Engineering.

\\'lLLi,v,M H. M.AXWEl.i., A. M. Inst.C.F.., President Institute Sanitary Engineers, London.

British Progress in Gas Works Plant and Machinery.

C. E. VjR^cKiL!<f-l'KV, C.E., Author of .Vcilern J/ethc.ls c/Sa~>i!rc /^a/'cur !// Gas !I'cr/:s.

British Progress in Locomotive Practice.

C. Roiis-Martkk, Consulting Engineer, Author of numerous uorks on the suhject.

British Progress in Pumps and Pumping Engines.

PlIII.IR PjMRLIM., Ccnisulting Engineer, .\uthor lif Pliin/'S : tjiei}- Collet ruction iuhl M .t7tao,einent ,

British Progress in Steam Engine Construction.

I. H. D.^i.Ks, A.M. Inst.C.F., Aiuhor of 11 igli SJ<eed Rngincs, etc,

British Workshops and their Equipment.

Den H. MoRr,A\, Engineering Trades Commissioner to S.inth .Africa, Author of ,l/,),/,v« British
plii-ineer,,!^ Practice, etc.

REPERTOIRE GENERAL
DU COMMERCE.

A Series ot Encyclopaedias ot International Trade.

Each volume is printed m French and the language of the countr\' dealt with
in parallel columns, and forms an invaluable reference enc}'clop:edia of the trade
and trading conditions existing between France and that countr\'.

The size of each volume is DemA" _|.to.

Each volume ma\" be purchased smgl)'.

The following is a list ot the volumes now in hand with their prices : —

The United States — France (iisop:iges) 21/= net, cloth boards Second Ed itio}L >ioju ready

Great Britain —France 21/= net, cloth boards S/'?-i?ig- o/ if^o^

French Colonies — France 251= net, in X-wo vols. In the Press

Germany —France i 21/= netj .... Keady 1905

Italy ^France 10/= net Second Edition no-iv ready

Holland, Belgium France 21/= net ...

Spain 6 Portugal — France

Austria, Hungary —France ... . .... Ready 1905

Russia —France

THIS Scries of \olunu'S constitutes a practical cnc}xlop;edia of the world's industr\' and com-
merce. It consists ot ;i series of volumes devoted to the economic studv of the n.Ttions.
and supplies the commercial world with all information concerning the world's imports
and exports.

Each \iilunie gives a comparative stud\' of French commerce \s\\\\ .i foreign nation, and
in the introduction to eacli is a geographical map of the countr\' studied, and a description of the
econcniiical and commercial positions of France compared with that of other nations.

The first and second parts contain in alphabetical order the products \\hich arc and can be
exported to and tVom the country in question, the centres ot production, details as to exports and
imports, prices, the cost of transport, tariffs, etc.

The third part comprises a list of the principal hu\-er3 and sellers of eacl"! product.

Thus provided with all information required, a merchant can readil)- determine wlierc the
best opening exists for his purpose.

The viWumes are publislied in two languages, namely, in French and In tlie language of the
countr\' under comparison printed In parallel columns, and all cr)ntain h\e tables of contents, in
French, English, German, Spanish and Italian. Thanks to this arrangement the /w'/t-rA'/rtr c;,-«tv,?/
du Conune?rc is i-ii practlcall)- universal value.

This publication is unique. Compiled frcnn ofhcial and trustwortiiy documents, it can be
consulted with advantage in all countries and by all merchants and traders, who will find therein
a mass of practical and precise information.

The Ri'perioi7-e General \^ compiled by specialists, and every care has been taken to secure
accuracy and to make the work thoroughly comprehensive.

It is the intention of the proprietors periodically to issue supplements, which will keep the
information up to date.

SOME PRESS OPINIONS.

THE TIMES, Au:^i!s! '^th, 1904.

A GREAT ENCVCLOP.EDIA.

" In the second volume of the notable series issued by La Sociutc du Repertoire O.iniJral du Commerce
the trade between the I'nited Slates and France is dealt with in detail, and the use of French and Eng-
lish in parallel columns removes all linguistic difficulties from its perusal.

" A comprehensi\e re\ie\v of trade such as this is brings home to a reader the small degree of competi-
tion that exists between the o\-ersea trades of the United States and P'rance. France is on balance still an
exporter to America. In foodstuffs there might be competition, tmt that production and consumption are
so nearly equalized in France that the duties on imported food hardly come into play. As both the United
States and France are protectionist countries, there is a great deal of information in the
book on the reciprocal working of tariffs, which will repay the perusal of all those inter =
ested in the subject, whatever their individual views may be."

THE WESTMINSTER GAZETTE, ////r 30//^ 1904.

A FREXCH ENCVCLOP.EDIA OF TRADE,

"... The first volume^ are issued under the brilliant editorship of M. Emmanuel Vignes, and form
without doubt one of the most interesting and valuable gazetteers that have yet been pro-
duced.

" , Ihe book itsulf is a monument of exact and, one would hope, fruitful Industry. It
is difficult to turn to any page or section of the book without finding oneself absorbed
in the fulness and interest of the information. One is not embarrassed by .an inadeqiuite knowledge
of the French language, for the book is published in parallel coiunuis— French un the left, English on the
right. . . . The sense is never ob-^cure.

" The amount of work that such a book represents is of course incredible. ... If there
is one thing which the war has taught us, it is that it is impossible to spend too much
money or to have too large a staff in your intelligence department, and it is precisely in
the intelligence department that Fnglish industry has broken down.

•' 'Ihe appearance of the coming volume on English trade, which M, Vignes has now m hand, will be
awaited with a great deal more than curiosity, by business houses engaged in French trade."