Building construction and superintendence, by F.E. Kidder ... (1896)
Kidder, Frank E. (Frank Eugene), 1859-1905 · New York, W.T. Comstock · leaf 397
Fig. 420.—Norris SashPulley. 39: BUILDING CONSTR ( CTJOX necessitates a different shape for the case. The first overhead pulley (Shulls) was patented in August, 1895, and was placed on themarket early in the same year. Overhead pulleys certainly posses?advantages over the side pulley, and their use… … Fig. 421.—Queen Overhead Pulley. the weights than the side pulley, and the wheel is not exposed,neither is there any opening to be seen. The face plate being mor-tised into the underside of the yoke, is not as conspicuous as whenset in the pulley stile, and in a window fitted with shades, can hardly
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