Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 188
g at 13 and 13a, which are additional holes forfastening the ends of tb<? lacer. 400 HAWKINS ELECTRICITY Ques. Give a rule for determining the proper size ofbelt. Ans. A single belt travelling 1,000 feet per minute will transmitone horse power per inch of width; a double belt will transmit… … Fig. 447.—Wrong way to run a belt. The pull should not come on the top side, because, withslack at bottom there is a tendency to slip. The horse power transmitted per inch is 4,000 - X 2 = 8 1,000 accordingly, the width of belt required to transmit 50 horse power is 50 > 8 = 6.25, say 6. For…
Electrical engineering
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