International Library of Technology · Scranton, International Textbook Co. · leaf 513
connections he has made. 10 ELECTRIC LIGHTING. 49 59. Fig. 27 illustrates the principle of one type of boardmade by the General Electric Company, in which cables arealmost wholly dispensed with. This is accomplished bymeans of two groups of contacts arranged in two parallelplanes a little distance… … fig. 2r. vertical rows, each pair being connected to one of the cir-cuits. The contacts, which are in the form of split bush-ings, are directly opposite each other and the connectionbetween any dynamo and any circuit is made by a longbrass plug that is pushed through the outside contactto the…
Electrical engineering
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