American machinists' handbook and dictionary of shop terms : a reference book of machine shop and drawing room data, methods and definitions (1914)
Colvin, Fred H. (Fred Herbert), 1867-1965, Stanley, Frank A. (Frank Arthur), b. 1874 · New York : McGraw-Hill book company ; London : Hill · leaf 608
tening to boring tools to prevent them going in too deep.Collar, Safety — Having a clamping device instead of set screw or having set screw below surface or so covered as not to catch anything brought in contact wath it.Commutator — The part of a dynamo or motor which takes off or leads current… … 58o COTTER — COPING MACHINE Cotter, Spring — Also called split cotter, split pin, etc., is used in a hole drilled crosswise of a stud, shaft / X _^ or some similar member, and its ends ( 0>- ^ spread apart to retain it in place and v^^y ^ keep some member carried by the shaft from slipping…
Machine-shop practice
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