The electric motor and the transmission of power (1906)
Houston, Edwin J. (Edwin James), 1847-1914, Kennelly, Arthur E. (Arthur Edwin), 1861-1939, joint author · New York : McGraw Pub. Co. · leaf 136
small, the weight i-aised willbe great, but the lift per revolution small.On the other hand, if the weight to belifted be known, the size of the pulleywill be limited by the torque of the motor.Thus, a motor of 40 pounds-feet torquecould not lift a weight of 5 pounds overa pulley moie than 8 feet… … Fig. 25.—Magnetic Circuit of Motor RepresentedIN Fig. 21. a motor, exerting a steady torque of 50pounds-feet, runs at 1,200 revolutions aminute, or 20 revolutions per second, theactivity may be reckoned directly as 50 X6.2832 X 20 = 6283.2 foot-pounds per THE TRAXSMISSIOX OF POWER. 129 second. A…
Electric motors
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