Illustrated catalogue and general description of improved machine tools for working metal (1899)
Sellers, William, & co. [from old catalog] · Philadephia, Levytype company · leaf 105
r can be rotated at any speed that may bedesired, whereby the rate of boring is rendered independent of the turning-speed. The sliding-headon the end of the boring-bar is moved by a 5 steel screw in the boring-bench. This screw receivesboth slow motion for feed and quick motion for rapid bar… … 20 DOUBLE-GEARED CHASING LATHE. Specially designed for brass work. Arranged with chasing attachment.Spindles for holding the; chasing hobs are so arranged as to accommodate twodifferent pitches at the same time. Also to cut with single pointed tool, single,double, triple, or quadruple threads.…
Machine-tools · Machinery
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