Skip to main content

Full text of "CANAL-LOCK GATE - United States Patent 687"

See other formats



Specification of Letters Patent No. 687, dated April 13, 1838.

To all whom it may concern:

Be it known that I, Franklin Livingston, of the town of 
Waterford, in the county of Saratoga and State of New York, have 
invented a new and useful improvement to prevent the gudgeons, 
steps, and collars of paddle or valve gates, such as are used in 
canal navigation for filling and emptying canal-locks, from 
wearing and also an improvement for opening and shutting the same 
by the horizontal application of the screw and lever combined, 
which is described as follows, reference being had to the annexed 
drawings of the same, making part of this specification.

The nature of my improvement consists in the application of 
friction boxes and collars to the gudgeons (or pivots, collars, 
and steps, of paddle gates). The improvement of opening and 
shutting the same consists in the application of a screw and nut 
attached to a lever, to be applied to gates standing 
perpendicular. . To enable others skilled in the art of making 
lock gates to make and use my improvement and invention I will 
proceed to describe the construction and operation of the same.

I construct my gate, or gates, gudgeons, steps and collars in any 
of the known forms, and to the gudgeons, steps, and collars I 
apply thereto friction boxes and collars varying at the same 
time, the size and shape of said friction boxes and collars to 
suit the gudgeons of the gates. The gates may be made in any 
suitable form and the gudgeons or pivots on which it turns may be 
attached in such a manner as would' suit the constructor best, 
and the gudgeons may be attached to any part of the wicket gate, 
or cast on the gate, and they may be made of any suitable kind of 
metal and so may the gates be made of metal (either cast or 
wrought iron, or wood' and iron combined).

I will describe a gate together with the gudgeons or pivots on 
which it turns, made of an entire piece of cast metal, the 
gudgeons cast on the gate. The following is a description of one 
two feet square, the plate A Figure 1 should be about one inch 
and a quarter thick in a line with the gudgeon B. The vertical 
edges of the gate or plate should be from half to five eighths of 
an inch thick, and increased in thickness toward the middle, so 
as to make the front and back of the plate a little convex 
instead of flat. The top gudgeon should be three inches long and 
three and three fourths of an inch thick in diameter, in the top 
of this gudgeon is a mortise G one inch and a quarter square, and 
nearly three inches' deep to admit of a wrought iron rod that is 
to turn the gate, where the gudgeons join the gate it should be 
increased gradually in thickness to the full diameter of the 
gudgeons, so that there may be no weak place in consequence of 
any sudden offset in the metal, and on the side of this gudgeon 
there must be a crease or groove cast or made in it so as to 
receive a corresponding tongue: If cast or made on the inside of 
the friction box E Figs. 2 and 5 that surrounds this gudgeon and 
protects it from wearing. The bottom gudgeon B Fig. 1 should be 
about two inches thick where it joins on to the gate and slanted 
off to about one and a half inches at the lower end and two 
inches long. The collar F Figs. 3 and 5 in which the upper 
gudgeon works should afford to it a bearing of about three 
inches—it may be formed one half in the metal frame that 
surrounds the sluice or may be firmly fastened to it. Where there 
is no metal frame then this collar is a separate piece of 
casting, about twelve or thirteen inches long, having a bearing 
of about three inches fastened to the top of the sluice: by means 
of bolts and nuts or spikes, and in this collar there is an inner 
collar, G Figs. 4 and 5 of corresponding circle to the inside of 
the collar F and outside of box E—said inner collar being 
designed to protect the outer collar from wearing. The collar has 
projecting shoulders with grooves H Figs. 3 and 5 cast upon the 
face or front side to receive the inner collar G. This friction 
collar G Fig. 4 is intended to secure the collar F from wearing; 
it may be made in many ways, and of different kinds of metal. It 
must be made to suit and fit the circle in the collar F and at 
the same time to correspond with the friction box E (that 
protects the gudgeon from wearing) this friction box,, or bush E 
is a circle, the inner friction collar G Figs. 4 and 5 is made in 
two parts, each a half circle with tongues J in each; dropping 
into corresponding grooves in the outer collar F so as to keep 
the inner collar to its place, and on the end of the tongues 
there are small projecting points J to keep the inner collar from 
dropping below the top of the outer collar; this collar ought to 
be made about one half inch thick, the thickness and size, may 
however be varied to suit any size gudgeon; and the other section 
of the collar G is made in the same shape and size in every 
particular as the one just described so that when these two 
sections or semi-circles are put in their places they form a 
circle around the friction box or bush that surrounds the 
gudgeons of the gate. I prefer thus to make these two sections of 
the same size and shape on account of requiring but one pattern 
for both, thereby avoiding any mistake should one break or be 
worn out, and it become necessary to replace it by another under 
water, and again when repairing the canal in the spring (as is 
usual) there will be but one kind of collar to carry about by the 
workmen, by this method all confusion or mistake is avoided. The 
friction box E that surrounds the upper gudgeon (and protects it 
from wearing) may be made of cast, or any other metal, and must 
be about — an inch thick of the same length and a little larger 
in diameter so that it may be slipped off and on easily by means 
of the thumb and finger at pleasure under water and on the inside 
there must be cast a tongue to correspond with the groove in the 
gudgeon by which it is made fast to it and kept from turning, and 
when the gate is turned this box turns with the gudgeon and the 
wearing thus takes place on the outside thereof and not on the 
gudgeon, and likewise the outer collar F is in a similar manner 
protected from wearing by the inner collar G.

The step M Fig. 6 to receive a friction box Fig. 7 and bear up 
the gate and rod that is to govern the gate, should be cast of 
metal of suitable size and shape firmly fastened to the bottom of 
the sluice by bolts. This step should not be less than one and a 
half inches thick where it receives the friction box (the hole in 
the same being governed in size according to the size of the 
friction box and gudgeon that it is to receive, twelve inches 
long and beveled off toward the back end one inch thick and three 
broad with two-inch holes in it to secure it to the girt at the 
bottom of the sluice—and in said hole M Fig. 6 there must be a 
notch, or groove n cast or made in the side thereof to receive a 
corresponding tongue p on the friction box Fig. 7 that enters or 
sets in to this step to prevent it from turning and wearing.

The friction box Fig. 7 that sets into the above described step 
is made of cast iron, and has a flange K cast on it of about 2 
inches broad, and all parts of it is about one half inch thick, 
this box has a bottom to it (thereby increasing its durability) 
and a tongue p cast or fastened on the outside to correspond with 
the groove cast in the step, by which it is held stationary, in 
the hole of the step, consequently the step cannot wear, and the 
flange to the box may be made larger or smaller as the nature of 
the case may require; but the box and the hole in the step must 
always be guided in size according to the size of the lower 
gudgeon of the gate.

The friction box Fig. 8 (for preserving the lower gudgeon from 
wearing) is made a little larger than the gudgeon and the hole in 
the box must be a little ovaling on the front side of the box, so 
as to let the gate pitch a little forward to clear the collar 
above, that it may be taken out and another one put in its place 
with ease, and about one sixteenth of an inch deeper, also with a 
bottom so that the bottom of the gate rests on the flanges of 
this friction box and this box must be set into the 
before-mentioned friction box (that preserves the step from 
wearing) consequently must be of such size as to be inserted into 
the before mentioned box, and the flanges must correspond in size 
to each other so that the bearing and wearing will be equal, and 
on the top part of the flange (one each side) there must be 
steadying pins or knobs q cast of about half inch high, so that 
by means of said pins when the gate is in its place the gudgeon 
will set in this friction box and as the gate turns this box is 
made to turn on the friction box that protects the step from 
wearing, consequently the friction or wearing comes on the two 
friction boxes thereby both the lower gudgeon of the gate and the 
step is entirely protected from wearing. These wicket gates A 
Fig. 9 are turned by insetting vertical rods O, into the socket C 
of the gudgeon and fastening on the tops of said rods horizontal 
arms P at right angles to the same the ends of said arms being 
attached to a horizontal rod Q moved by a horizontal screw R 
turning in a nut which thus turns all the gates together.

The boxes for horizontal gates will be made similar to those 
represented at Fig. 10, in which the inner box S on the gudgeon 
is made like box E Fig. 2—and the outer box T in which said box S 
turns has a tongue on the outside fitting into a corresponding 
groove in the collar g fastened to the frame of the main gate.

The invention claimed and desired to be secured by Letters Patent 

1. In the construction and arrangement of the inner collar G and 
box or bushing E for preventing the wear of the upper gudgeon and 
collar of canal valve gates; also as applied to the gudgeons of 
horizontal or vertical wicket gates; as before described in Fig. 

2. In the construction and arrangement of boxes for preventing 
the wear of the steps and lower gudgeons as before described.

3. The mode of opening and shutting vertical wicket gates by the 
screw working horizontally as before described in Fig. 9.


Witnesses: Wm. P. Elliot, W. Bishop.