Collection of United States patents granted to Thomas A. Edison, 1869-1884 (1869)
Edison, Thomas A. (Thomas Alva), 1847-1931, Peters, N. (Norris), lithographer, Hammer, William Joseph, 1858-1934, former owner. DSI, Edison, Thomas A. (Thomas Alva), 1847-1931, inscriber. DSI, United States. Patent Office · Washington, D.C. : U.S. Patent Office · leaf 371
tsmight be upon a spring-arm, so as to be broughtinto contact with the shaft by the attraction,if desired. I claim as my invention— The speed-regulator consisting of the elec-tro-magnet I, shaft a, and governor, in combi-nation with the circuit-closer and pulsator,substantially as and for the…
Trade catalogs · Patents · Edison, Thomas A. (Thomas Alva), 1847-1931 · Inventions · Telegraph · Electric machinery · Electric apparatus and appliances · Phonograph · Telephone · Motors
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