Dynamos and motors; a text book for colleges and technical schools (1911)
Franklin, William S. (William Suddards), 1863-1930, Esty, William, 1868-1928 · New York The Macmillan company · leaf 52
etal rings r and ;upon which two brushes a and d rub and keep the movingwires connected to the outside receiving circuit. The insulated metal rings rr are mounted at one end of thearmature and are called collector rings. The laminated structureAA with its winding of wire is called the armature of… … Fig. 16. BB, Fig. 13, of an alternator are arranged so as to cause alter-nate poles of the field magnet to be north and south as indicatedin the figure. Jt is the relative motion only of armature and field magnetwhich is essential in any dynamo, and alternators are frequentlymade with a revolving…
Dynamos · Electric motors
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