Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 725
Fiti. 3.—Automatic spacing punch,sitated the use of stocks of various sizes and lengths. With the use of the coupling, onestock will do for many lengths and diameters. 696 PUNCHING MACHINES. The distance from point of punch to coupling is the same, whether long, short, or regularcoupling is used.… … Fig. 4.—Punch and straigbtener. removed for changing. The cut shows machine set to punch a 5-ft. row of 60 one-quarter-inch holes through onc-(iuarter-inch metal. Aniomatic Spacing Punch.—Fig. 3 shows an automatic trimmer, beveler, spacer, and
Mechanical engineering
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