Illustrated catalogue and general description of improved machine tools for working metal (1899)
Sellers, William, & co. [from old catalog] · Philadephia, Levytype company · leaf 25
ght or left. Spindles supported throughout, adjustable from3 to 8 centre to centre. Thrust taken on hardened steel steps instead of collars ;no projecting ends to cause bearings to wear bell mouth. Drills fed simul-taneously by powerful feed gear stopped and started by positive feed clutch… … THREE-SPINDLE RAIL DRILLING MACHINE. Spindles adjustable from 3 to 12 from centre to centre. Powerful visewith adjustable backing plate and reversible end stop. Spindles supported closeto rail, no long projecting ends. Hardened steel steps instead of collars. Drillsfeed simultaneously by powerful…
Machine-tools · Machinery
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