Illustrated catalogue and general description of improved machine tools for working metal (1899)
Sellers, William, & co. [from old catalog] · Philadephia, Levytype company · leaf 104
e instantly operated in either direction without disturbingthe other carriage, whether it be screw-cutting or turning. All changes for feeds or screw-cuttingare made on the saddle, thus making the two tool carriages entirely independent of each other inall their movements. Cross-slide in each… … ATHE.—For 16 Steel Cannon. When screw-cutting carriage is run back to starting point after each cut by quick trav^ersingmechanism, an indicator is provided for spacing threads and to show proper time for throwingscrew-cutting clutch into gear. Levers for rapid traverse and longitudinal feed are…
Machine-tools · Machinery
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