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 358
chines and are made for slow, medium, or moder-ate speeds operating on 115-, 230-, or 500-volt circuits. TheirNorthern type B motors, shown in Fig. 91, serve for their smallersizes. The yoke or field frame is of soft cast steel, circular and inone piece. The poles are of laminated sheet steel… … Fig. 89. Fairbanks-Morse D. C. Motor DrivingExhaust Fan 318
Electrical engineering
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