Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 245
low speed type, running about420 r. p. m., and each one had upon the armature shaft sheaves of about20 inches diameter. Cables were arranged so as to form a doublebight or loop around each of these pulleys on the armature shafts,as in Eig. 121. The cables ran from these sheaves over two pul-leys,… … ¥i. 121. Motors Diagram of Fraser Elevator DrivingMechanism JH ELEVATORS 165 onlor to vary tlio speeds of the motors. Referring to the diagram itmay l)e seen tliat when both motors were running at the same speed,no motion of the ear would result; but by varying the speed of eithermotor, the car…
Electrical engineering
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