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 173
tricand Manufacturing Company. In the General Electric plan the motormancontrols the current in the solenoids. In the Westinghouse system he con-trols the current in electromagnetic valves which, in turn, control the supplyof air to the contactor cylinders. Manual Controller. A typical cylinder… … Fig. 52. K-10 Controller I troller handle above. Some of the copper segments are insulatedfrom the drum, others are not. At the top of the drum and rotatingwith it is a notched wheel (star-wheel) against which a strong springpresses a roller. The roller and star-wheel tend to hold the drumin any…
Electrical engineering
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