Inside Out Library

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 1259

An illustration from Collection of United States patents granted to Thomas A. Edison, 1869-1884, 1869, leaf 1259
on thearmature-shaft, the electro-magnet mounted onsaid shaft and revolving with it, and the sleeve keyed to said shaft and carrying the armatureof said electro magnet, and the friction-clutchmaking frictional contact with the inside ofsaid pulley, substantially as set forth. This specification… … United States Patent Office. # THOMAS A. EDISON, OF MENLO PARK, NEW JERSEY.REGULATOR FOR DYNAMO ELECTRIC MACHINES. SPECIFICATION forming part of Letters Patent No. 264,667, dated September 19, 1882. Application filed August 7, 18P2. (No model.) To all whom it may concern: Be it known that f, Thomas…

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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