Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 302
Fig. 633. Fig. 634. up with solid rims or split, as in the figure. They are made of the usual pulleydimensions up to 15 feet in diameter, and any desirable width of face, and ableto transmit any amount of H. P. at any speed safe for a belt. Fig. 635 is a perspective of a pulley with a wrought-iron…
Mechanical drawing
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