Electric toy making for amateurs. This work treats on the making of electrical toys, electrical apparatus, motors, dynamos and instruments in general ... By T. O'Conor Sloane .. (1914)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · New York, The N.W. Henley publishing co. · leaf 56
will be found COMMUTATOR FOR MULTIPOLAR MOTOR. 55 that the height as well as breadth of the ribs is afactor in determining the period of contact. Themore elegant way is to make each rib exactly one-sixth the circle in width and fill the space betweenthe ribs with insulating material flush with the… … Fig. 20. Commutator op Multipolar Motor. the ferrule upon the drum, against which one spring,C, is constantly pressing. F, F, represent the ribsconnected to the collar, against which ids the otherspring, D, bears. Their degree of projection, it willbe seen, determines the time of contact. P and…
Electric apparatus and appliances · Electric toys
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