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 197
flexible as regards capacity and ispractically free from chattering. For the area of the drum surface in relation to capacity, the authorhas no special data. The limiting figures already given for theProny brake (.09 sq. ft. per h.p.) will serve as a guide, rememberingthat, as ropes naturally take… … Fig. 9. Figs. 9 and ic- B.h.p.=- surface of 144 gives .0838 sq. ft. per h.p. Similarly the Union Gas Engine Cos.brake has a drum surface of —— = i?.o8 sq. ft. which, 144 OH divided by 150, gives .0872 sq. ft. per h.p. From these data we mayfairly conclude that .09 sq. ft. per h.p. marks the limit…
Machine design
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