. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . i 2 Sheets--Sheet 2. T. A. Telegraphy and Perforators Therefor. ,209. V■ Cricked cjio^/^^d^ f Patented May 26^ — ~———z^^^P^--—~5 rtrtTj arty United States Patent Office. THOMAS A. EDISON, OF NEWAEK, NEW IN AUTOMATIC TELEGRAPHY AND IN PERFORATORS THEREFOR. Specification forming part of Letters Patent No. 151,200, dafc <1 May 20, L374 ; application filed September 2, 1873. Case 83. To all whom it may concern: Be it known that I, Thomas A. Edison, ofNewark, in the coun


. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . i 2 Sheets--Sheet 2. T. A. Telegraphy and Perforators Therefor. ,209. V■ Cricked cjio^/^^d^ f Patented May 26^ — ~———z^^^P^--—~5 rtrtTj arty United States Patent Office. THOMAS A. EDISON, OF NEWAEK, NEW IN AUTOMATIC TELEGRAPHY AND IN PERFORATORS THEREFOR. Specification forming part of Letters Patent No. 151,200, dafc <1 May 20, L374 ; application filed September 2, 1873. Case 83. To all whom it may concern: Be it known that I, Thomas A. Edison, ofNewark, in the county of Essex and State ofNew Jersey, have invented an Improvementin Automatic Telegraphing■ and the followingis declared to he a correct description of thesame. In the Morse system of telegraphy the op-erator frequently receives the message bysound, and writes the same out as the printing-telegraph system, the printedstrip itself is usually delivered as the ordinary automatic system, the paperhas to be punched or composed j and, at thereceiving-station, the message on the chemicalpaper has to be translated and written out byhand, or printed by a key sy


Size: 1110px × 2252px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., boo, bookcentury1800, booksubjectinventions, booksubjecttelephone