Illustrated catalogue and general description of improved machine tools for working metal (1899)
Sellers, William, & co. [from old catalog] · Philadephia, Levytype company · leaf 189
and patent toggle-joint stop motion ; counterbalanced slide ar-ranged to punch continuously or to throw out automatically after each stroke, t>vtrreach from center of mainpunch to back of throat 33. Slide may be brought down by hand to try centering of punch. (Operated by handor foot. Fast and… … 36 PUNCHING MACHINE—Arranged for Shearing Attachment. Capable of punching 114 holes in i steel plate with flat punch. Over-reach from centre of main punch holder to back of throat, 36. Front punch forflanges and angles. Toggle-joint stop motion, counterbalanced slide and auto-matic knockout.…
Machine-tools · Machinery
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