International Library of Technology · Scranton, International Textbook Co. · leaf 440
Fig. 8. receive one end of adjusting rods e^ e, the other ends ofwhich pass through cup castings d, d to receive adjustingnuts «, 11. On this form of trolley stand the pole may eitherbe rocked over independently or it can be swung around 25 ELECTRIC RAILWAYS. with the upper member in. Casting in… … ^CF- Fig. 9. compression cup, compresses one of the springs, and pro-duces the desired pressure of the wheel against the trolleywire. To increase the force with which the wheel is pressedagainst the trolley wire, tighten the nuts c, c; this will causesome slack in rods ^, ^, so that the nuts ;/, n…
Electrical engineering
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