Illustrated catalogue and general description of improved machine tools for working metal (1899)
Sellers, William, & co. [from old catalog] · Philadephia, Levytype company · leaf 188
flanges and angles. Toggle-joint stop motion, counterbalanced slide raised and lowered by hand lever forsetting punches. Two speeds, spacing table 42 wide, operated automatically andarranged with a differential movement to allow for variations of spacing in innerand outer boiler sheets. Table runs… … 33 PUNCHING MACHINE. For holes up to i^x iti plate. As shown this machine is especially arranged for pmicliiug webs of chan-nels from 6 to i8 wide ; has positive drawback and patent toggle-joint stop motion ; counterbalanced slide ar-ranged to punch continuously or to throw out automatically after…
Machine-tools · Machinery
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