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 281
, prevents any risk of reboundwhen the arm is arrested by the stop i. I claim as my invention— 1. The type-wheel and shaft, revolved byfriction from the armature of an electro-motorplaced upon the type-wheel shaft, substantial-ly as set forth. 2. The finger-keys I and electro-magnet p,connected as… … A M. PHOTO LITHOGRAPHIC CO. NX(OSBOfTNES PPOCESS.) 3 Sheets — Sheet 2. I. A. EDISON.Type Writing-Machine. No. 133,841. Patented Dec. 10, 1872.
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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