Illustrated catalogue and general description of improved machine tools for working metal (1899)
Sellers, William, & co. [from old catalog] · Philadephia, Levytype company · leaf 26
rful 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 feed-gear operated through positive clutch,counterweighted and quickly adjustable by hand. Gears… … THREE-SPINDLE RAIL DRILLING MACHINE—with Post on One Side. Made right and left. Arranged so that rails may be moved back withoutshifting endwise. Spindles adjustable from 3 to 12 from centre to centre.Drills fed simultaneously. Spindle thrust taken on hardened steel steps, andspindles supported…
Machine-tools · Machinery
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