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
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 … Fig. 5.—Multiple and I-beam punch. punch, made by the same company. It is designed to trim, bevel, space, and punch the holesin boiler and other plate work. The sheet is fastened to the table and fed past the tools,which trim and bevel the edge, and automatically space and punch the holes. The…
Mechanical engineering
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