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 618
DIES, PUNCH PRESS — Continued 589 … although prevented from turning by a small pin at the upper endof the shank which is engaged by a slot in the punch carrier. Thesprings shown above the punch proper tend to hold the punch inits lower position and at the same time after the punch has passeddown into the die allow the punch carrier…
Machine-shop practice
Internet Archive · UMass Dartmouth, Claire T. Carney Library · Public Domain Mark 1.0. Free to use for anything.
