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 1339
d-justing such brush or spring, two electro mag-nets acting oppositely and separately upon suchbar, means located in multiple-arc for control-ling the circuits to said electro-magnets, andone or more dash-pots for retarding the move-ment, substantially as set forth. This specification signed and… … WITNESSES: INVENTOR: K. PETERS, Photo-Lithograph or, Washington. D. C United States Patent Office THOMAS A. EDISON, OF MENXO PARK, NEW JERSEY.REGULATOR FOR DYNAMO-ELECTRIC MACHINES. SPECIFICATION forming part of Letters Patent No. 265,784, dated October 10, 188?. Application filed August 14, 1882.…
Trade catalogs · Patents · Edison, Thomas A. (Thomas Alva), 1847-1931 · Inventions · Telegraph · Electric machinery · Electric apparatus and appliances · Phonograph · Telephone · Motors
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from The Telegrapher [microform] (1864)](https://img.insideoutlibrary.com/img/200/ia-telegrapher04nati-276-121.webp)
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer04inte-385-166.webp)
