Handbook for machine designers, shop men and draftsmen (1916)
Halsey, Frederick A. (Frederick Arthur), 1856-1935 · New York, McGraw-Hill book company, inc.; [etc., etc.] · leaf 169
e rope. Cotton rope being more flexible, the sheavesfor it may be smaller. The British rule for cotton-rope sheavesprovides a minimum of 30 rope diameters. The same rule for di-ameters should be observed with idler as with driving sheaves, as itis the bending of the rope on the sheave that does the… … Fig. s. Figs. 3 to 5.—Cross-sections of rope sheaves. Engrs., 1909). British practice with cotton ropes does not hesitateto adopt speeds of 7000 ft. per min., whereas American practiceregards 5000 ft. as the economical limit with manilla ropes. Ac-cording to Mr. Kenyon, the angle between the…
Machine design
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