International Library of Technology · Scranton, International Textbook Co. · leaf 147
and allowsthe strong spring J/ to pull down D D^ and hence open the circuit at C and E. It+ can thus be seen that thispart of the device is acircuit-breaker within it-self, but the arrange-ment as it stands wouldprovide no means of sup-pressing the arc, and theblocks C and E and thebridge DD would… … Fig. 24.
Electrical engineering
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