Inside Out Library · Explore

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 175

An illustration from Collection of United States patents granted to Thomas A. Edison, 1869-1884, 1869, leaf 175
ecause the spring g isacting upon the same, and the air-cushion inthe cylinder Jc formed between the piston and said cylinder arrests any sudden movement,and the spring g acts between the pulsationsto keep the piston from gradually forcing theair out of the cylinder 1c; but when the circuitis kept… … 128,605 United States Patent Office, THOMAS A. EDISON, OF NEWABK, NEW JERSEY.IMPROVEMENT IN PRINTING-TELEGRAPHS. Specification forming part of Letters Patent No. 128,605, dated July 2, 1872. To all tvhom it may concern: Be it known that I, Thomas A. Edison, ofNewark, in the county of Essex and…

Trade catalogs · Patents · Edison, Thomas A. (Thomas Alva), 1847-1931 · Inventions · Telegraph · Electric machinery · Electric apparatus and appliances · Phonograph · Telephone · Motors

Internet Archive Book Images · Smithsonian Libraries · No known copyright restrictions (public domain). Free to use for anything.

More pictures from Collection of United States patents granted to Thomas A. Edison, 1869-1884

More like this