Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 215
759/. SOLENOID ELECTRIC FAN.—A circular magnet attached to a pivoted armand fan blade, oscillates within two electriccoils by the alternate make and break of thecircuit from the battery by the contact fin-gers and studs. Requires no switch; sim-ply, stopping or starting the fan blade putsit out and… … 7590-. ALTERNATING CUR-RENT TRANSFORMER.—L, L, main lines from dynamo A;P, primary coil of small wire andmany turns; B, iron magnet corewhich may be made of strips ofsheet iron or iron wire; S, induc-tion coil of large wire and fewturns; D, lamp circuit. Practi-cally both coils are wound onthe same…
Mechanical movements
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