. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . nt on one line may betransferred by condensers into another line, orto a short circuit containing a chemical receiv-ing-instrument. By this means the static ef-fects are nearly overcome, and perfect signalsare recorded. I do not wish to confine myself to any par-ticular mechanism for operating the condens-ers ; but I claim as my invention— 1. The method herein specified of transfer-ring the signals of one electric circuit into an-other circuit by revolving circuit - closingwheels with conducting and non-conductingsu
. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . nt on one line may betransferred by condensers into another line, orto a short circuit containing a chemical receiv-ing-instrument. By this means the static ef-fects are nearly overcome, and perfect signalsare recorded. I do not wish to confine myself to any par-ticular mechanism for operating the condens-ers ; but I claim as my invention— 1. The method herein specified of transfer-ring the signals of one electric circuit into an-other circuit by revolving circuit - closingwheels with conducting and non-conductingsurfaces and connections to condensers and tothe chemical recording- instrument, substan-tial] y as set forth. The transmitting - instrument providedwith a circuit-closing point and opposing bat-tery for lessening the battery-power in themiddle portion of the pulsation for a dash, asset forth. Signed by me this 18th day of January, 1875. THOS. A. EDISON. Witnesses: Geo. T. Pinckney,Chas. H. Smith. T. A. TELEGRAPH. No. 195,752. Patented Oct. 2, 1877. NPETffiS, PHOTO-UTHOQH»PH€R, WASHINGTON, D. 0 • United States Patent Office. THOMAS A. EDISON, OF NEWARK, NEW JERSEY, ASSIGNOR TO HIMSELF ANDGEORGE HARRINGTON, OF WASHINGTON, DISTRICT OF COLUMBIA. IMPROVEMENT IN AUTOMATIC TELEGRAPHS. Specification forming part of Letters Patent No. 195,752, dated October 2, 1877 ; application filed January 27,1875. To a JI wlwm it may concern: Be it known that I, Thomas A. Edison, ofNewark, in the county of Essex and State ofNew Jersey, have invented an Improvementm Automatic Telegraphs, of which the follow-ing is a specification: The object of this invention is to transmit,over telegraphic circuits, dashes the first partof each of which is formed by a stronger cur-rent than the last, so as to prevent the wirefrom being fully charged statically; also, inarranging in the main line at the receiving-station a condenser formed of plates separatedby air only. The invention
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