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 727
Fig. 7.—Horizontal punch. punching. The gearing and fly-wheel being below the top of the machine, leaves it per-fectly clear, so that flanges, heads, or crooked furnace plates, as well as bent angle-iron, may 698 PYRO-ENGRAVING. … ill l|iOMlifIf SifM t-.j 1 Il i ■ l iIvAm? 1^ be punched from either the inside or outside. This is a convenient tool for punching braceor stfiy-bolt holes in locomotive boilers. Plates that are already bent and fitted up can betaken down and every hole punched, thus saving the time spent in…
Mechanical engineering
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