. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . a reachesits maximum speed, the circuit through the wires 5and G, screw 3, and fan Z, will be broken, and thepower of the motor he lessened by the magnets c cceasing to act, and so soon as the speed of the motoris lessened, the yielding fly again closes the circuit. By means of the alternate closing and breaking ofthe circuit according to the speed, a nearly uniformvelocity of the motor is insured; hence two or moreinstruments can be propelled at almost the samespeed, even at distant stations, the regulation of thes
. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . a reachesits maximum speed, the circuit through the wires 5and G, screw 3, and fan Z, will be broken, and thepower of the motor he lessened by the magnets c cceasing to act, and so soon as the speed of the motoris lessened, the yielding fly again closes the circuit. By means of the alternate closing and breaking ofthe circuit according to the speed, a nearly uniformvelocity of the motor is insured; hence two or moreinstruments can be propelled at almost the samespeed, even at distant stations, the regulation of thespeed being by the screw 3. I claim as my invention:— A yielding fly rotating against the atmospheric re-sistance, and so arranged as to break or close an elec-trical circuit, in combination with a revolving electro-magnetic motor, substantially as and for the purposesset forth. Signed by me this 29th day of June, A. D. : THOMAS A. EDISON. Ohas. H. Smith, Geo. T. Pincknbt. t * rm^i, 2 Sheets-Sheet I. T. A. EDISON, Printing Telegraph. Patented March 28,
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Keywords: ., boo, bookcentury1800, booksubjectinventions, booksubjecttelephone
