Illustrated catalogue and general description of improved machine tools for working metal (1899)
Sellers, William, & co. [from old catalog] · Philadephia, Levytype company · leaf 24
withdrawing the drills after the completion of the holes.Our spindle thrust is taken on hardened steel steps instead of collars, and fric-tional resistance greatly reduced thereby. The speed of these machines is high and the feed per rotation moderate, asthese conditions seem to be the most… … TWO-SPINDLE RAIL DRILLING MACHINE. With rectangular column having projecting base for rail with powerful clamp-vise and adjustable backing for securing rail in proper position. End stop reversibleto make machine right or left. Spindles supported throughout, adjustable from3 to 8 centre to centre.…
Machine-tools · Machinery
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
