. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . ♦ 2 Sheets — Sheet 2. T. A. in Rheotomes or Circuit-Directors. No. 131,334. Patented Sep. 17, United States Patent Office. THOMAS A. EDISON, OF NEWAKK, NEW IN RHEOTOMES OR CIRCUIT-DIRECTORS. Specification forming part of Letters Patent No. 131,334, dated September 17,1872. To all whom it may concern: Be it known that I, Thomas A. Edison, ofNewark, in the connty of Essex and State ofNew Jersey, have invented an ImprovedRheotoine or Circuit-Director; and the follow-ing is d
. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . ♦ 2 Sheets — Sheet 2. T. A. in Rheotomes or Circuit-Directors. No. 131,334. Patented Sep. 17, United States Patent Office. THOMAS A. EDISON, OF NEWAKK, NEW IN RHEOTOMES OR CIRCUIT-DIRECTORS. Specification forming part of Letters Patent No. 131,334, dated September 17,1872. To all whom it may concern: Be it known that I, Thomas A. Edison, ofNewark, in the connty of Essex and State ofNew Jersey, have invented an ImprovedRheotoine or Circuit-Director; and the follow-ing is declared to be a correct description ofthe same. This invention is for selecting from a num-ber oi telegraphic circuits the particular oneto which a message is to be instance, a connection from the sending-sta* , say at New York, may pass to thisimproved instrument located, say at Phila-delphia, and by operating said instrument atPhiladelphia by a negative current, a connec-tion may be opened with a line to Eeading,Harrisburg, Baltimore, or any other desiredpoint, and communication be made direct orthrough a relay by pulsations of positive po-larity, the rheotome instrument a
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