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 46
Fig. 20. Dynamo E. M. F. Curve 35 26 DIRECT-CURRENT DYNAMOS merit, except that the loop has two turns instead of one. Againstthis commutator, at diametrically opposite points, press a pair of … Fig. 21. Commutator with Simple Tvim Commutator with Double Turn metallic springs or brushes which lead the current due to the gen-erated e. m. f. to the external circuit. If, as in Fig. 23, these brushesare so set that each half of the split tube moves out of contactwith one brush and into contact…
Electrical engineering
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