Illustrated catalogue and general description of improved machine tools for working metal (1899)
Sellers, William, & co. [from old catalog] · Philadephia, Levytype company · leaf 335
veying power from a horizontal to avertical shaft by means of a belt, and one carrier so adjusted as to distribute thepulling strain through the entire width of the belt. In this way power may bedistributed through each story of a building without belts running through thefloors. The shaft, coming… … 330 Wm. Sellers & Co., Incorporated, Philadelphia, Pa. tution of iron for wood as a material for pulleys, and the capacity to do so skil-fully and inexpensively, was justly considered as one of the great strides in theart. A properly proportioned and correctly finished iron pulley has,…
Machine-tools · Machinery
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