Illustrated catalogue and general description of improved machine tools for working metal (1899)
Sellers, William, & co. [from old catalog] · Philadephia, Levytype company · leaf 32
ing the rivet holes after the boilers have beenpartly assembled. We have endeavored in these machines to maintain the highefficiency which we have attained in our other drilling machines, and to adoptonly constructions which are durable as well as convenient. In addition to thoseillustrated, we… … FOUR-SPINDLE VERTICAL DRILLING MACHINE. For plates 5 feet wide. Height under cross-head in highest position, 12.Spindles are carried upon saddle moving in cross-head by which thej may beadjusted simultaneously through dividing gear at the end of the cross-head.Minimum distance between any two…
Machine-tools · Machinery
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