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 510
lates. brake handle is multiplied in amount to the desired direction,and applied to the brake shoes which press against the wheelsof the car. Fig. 3,660 shows a typical hand brake system. ELECTRIC RAILWAYS 2,601 Ques. How do air brakes operate? Ans. By power derived from compressed air and… … j?ig. 3,667.—Geared brake. This apparatus has a pinion A, on the lower end of the brakestaff, which engages a gear B, made in one piece with a double sprocket wheel. The twochain loops running through these sprocket wheels engage two hooks formed on the endof the brake rod, or two separate brake…
Electrical engineering
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