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Full text of "Modern Mechanical Engineering Vol-I"

THE   DETAIL  OFFICE

Many order-sheets are ruled and printed in considerable detail, and only
want a few sizes filled in by the draughtsman and completed by the tracing
or copying office. Indeed, these offices can do a considerable amount of
work which will save the draughtsmen very considerable time. For instance,
in the case of a large piping-arrangement plan, it is usually necessary to give
a list of all the pipes in the job with their distinguishing number, material,
thickness, and standard pressure; also a list of fittings, and a list of auxiliaries,
such as the following:

LIST OF PIPES

Pipe No.
	Title.
	Bore.
	Material.
	Thickness.
	W.P.
	Order Sheet Page.

 {
	Main steam from) boiler A . . /
	Si in.
	W.I.
	fin.
	220
	211

 (
	Main steam from) boilers A and B J
	6fcin.
	W.I.
	| in.
	220
	231

&c.
	
	
	
	
	
	

&c.
	
	
	
	
	
	

LIST OF FITTINGS

Fitting
 No.
	Title.
	Bore.
	Material.
	Thickness;
	W.P.
	Order Sheet Page.

R.i3 {
	Main stop valve \ on boiler C /
	Si in.
	Steel
	5 in.
	220
	l67

R.i+{
	Aux. stop valve \ on boiler C J
	4   in.
	C.I.
	Jin.
	22O
	194

&c.
	
	
	
	
	
	

&c.
	
	
	
	
	
	

LIST OF AUXILIARIES

Mark.
	Size of Cylinder.
	Size of Pump.
 6 in.
	Stroke.
	Style.
	Maker.
	Title.
	Cap.

XX
 &c.
	6 in.  6 in.
		12 in.
	Duplex
	Blank, Blank & Co.
	Sanitary pump
	7 tons per hour

&c.