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 401
current, gearless, bipolar motors. The mounting of the motors isclearly shown in Fig. 245. The armatures are solidly mounted onthe driving axles, while the pole pieces form a part of the spring- 355 … 356 ELECTRIC RAILWAYS 259 supported truck frame. The truck frame has a vertical movementwith respect to the armature. The pole pieces are prevented frombinding on the armature by the use of a large air gap andrather flat pole shoes. The magnetic circuit of this equip-ment is from end to end of the…
Electrical engineering
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