Illustrated catalogue and general description of improved machine tools for working metal (1899)
Sellers, William, & co. [from old catalog] · Philadephia, Levytype company · leaf 184
ariables canbe adjusted to the requirements of the work or the preference of the purchaser,but the width of the housing is limited to certain fixed dimensions, which serve asan index to the bulk and strength required. Thus, a punching machine 30 over-reach might be 22, 28, or 32 wide, and from the… … CRANK PUNCHING MACHINE—7 Overreach. Capacity 1 hole in yi plate. 36 x 7 fast and loose pulleys should make144 revolutions per minute. Complete with wrenches, sample punch and die, etc. i8o Wm. Sellers & Co., Incorporated, Philadelphia, Pa. Plate No. 149.
Machine-tools · Machinery
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