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 239
eel to the pole. Wheel. The trolley wheel iscast from brass of special com-position satisfactory as to tough-ness and wearing qualities. Thewheels are grooved as shown inFig. 105, the grooves being of suchform as to prevent the wheel fromleaving the wire and at the sametime to give sufficient… … Fig. 100. PerspeotiTe View of Good Typoof Trolley Wheel 206 ELECTRIC RAILWAYS 111
Electrical engineering
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