. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . AM. HOTO-LITHOCHAPHi; CO. (OSBORNES 2 Sheets — Sheet 2. T. A. in Transmitters and Circuits for Printing-Telegraphs No. 131,343. Patented Sep. 1 7, United States Patent Office. THOMAS A. EDISON, OF KEWAEK, NEW IN TRANSMITTERS AND CIRCUITS FOR PRINTING-TELEGRAPHS. Specification forming part of Letters Patent No. 131,343, dated September 17,1872. To all ivhom it may concern: Be it known that I, Thomas Alva Edison,of Newark, in the State of New Jersey, haveinve
. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . AM. HOTO-LITHOCHAPHi; CO. (OSBORNES 2 Sheets — Sheet 2. T. A. in Transmitters and Circuits for Printing-Telegraphs No. 131,343. Patented Sep. 1 7, United States Patent Office. THOMAS A. EDISON, OF KEWAEK, NEW IN TRANSMITTERS AND CIRCUITS FOR PRINTING-TELEGRAPHS. Specification forming part of Letters Patent No. 131,343, dated September 17,1872. To all ivhom it may concern: Be it known that I, Thomas Alva Edison,of Newark, in the State of New Jersey, haveinvented an Improvement in Printing-Tele-graphs, and the following is declared to be acorrect description of the same. The first part of this improvement relates toa machine that is termed a transmitter, inwhich there are finger-keys or stops that are al-loted to the respective characters is also in this instrument a pulsator,that makes and breaks an electric circuit pass-in g through a range of relay-magnets and opensand closes these until the pulsator is stoppedby the depression of one of the second part of this invention relates to thearrangement of the respective electric circuitsthat connect this transmitter with the relay-mag
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Keywords: ., boo, bookcentury1800, booksubjectinventions, booksubjecttelephone
