Benjamin, Charles Henry, 1856- [from old catalog], Hoffman, James David, 1868- [from old catalog] joint author · New York, H. Holt and company · leaf 314
Fig. 144. action of the punch on the material is shown in A, Fig. 144, thehole tapering from the size of the punch on one side to the sizeof the die on the other. This taper is slight and is considered ofno consequence in rough work, but in finished work it is a difficultythat can easily be…
Machine design
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
