Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 64
strain in pounds. Average value— -T^O 6-. Tins makes the normal working strain equal to one thirty-sixth of the breakingstrength, ami about one twenty-fifth of the strength at the splice. The actual strains are or-dinarily much greater, owing to the vibrations in running, as well as from… … Fig. 7.—Rope-driving. 140 ft. per second. Under this assumption, we will have in all cases a fiber strain of 200 lbs.on the driving side of a 1-in. rope, and an e(|uivalent strain for other sizes. The centrifugalforce of the rope in running over the pulley will reduce the amount of force available…
Mechanical engineering
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