COMBINED TELEGRAPHIC AND TELEPHONIC CIRCUIT

CIRCUIT TELEGRAPHIQUE ET TELEPHONIQUE

Claims

Claim lst The combination, with a single electric circuit, of means, substantially as described, for sending Morse signals, and means, substantially as described, for transmitting signals by induced currents simultaneously in opposite directions, as set forth. 2nd The combination, with a primary circuit containing a transmitter, of a secondary circuit going to line, and a bridge-circuit containing a receiver arranged to respond to signals from the distant station only, and electrostatic devices arranged in the branches of the bridge-circuit and the ground connections, as set forth. 3rd. The combination, with a telegraph circuit, and means for sending Morse signals of secondary or induced current, transmitting and receiving devices connected to said circuit, with condensers or other inductors arranged between and connecting said circuits, and elec¬tro-magnets, as described, arranged in the telegraphic circuit for the purpose of controlling the secondary circuits, substantially as described. 4th The combination, with a telegraphic circuit, and means for sending Morse, or similar signals, of secondary or induced current transmitter and receiver devices connected to said circuit, a condenser of great capacity in the gronnd or bridge circuit of the line, and a condenser of other inductor of small capacity in the line between the induced current instruments and the main line, or be¬tween said induced current instruments and the gronnd. 5th The combination, with a telegraphic circuit, and means for sending Morse or similar signals, of secondary or induced circuit, transmitting and receiving devices connected to such circuit, a condenser or other inductor in a ground or bridging circuit between the Morse and induced current instruments ,and an electromagnet of comparatively high resistance also in the line circuit, substantially as described. 6th The combination, with a telegraphic circuit and means for send¬ing Morse or similar signals, said circuit containing a magnet of comparatively high resistance, of secondary or induced circuit, transmitting and receiving devices connected to such circuit, a condenser or other inductor of comparatively small capacity in said in¬duced current circuit, and a condenser of greater capacity in the ground or bridging circuit of the Morse instruments, substantally as described. 7th The combination, with a telegraphic circuit, and means for sending Morse or similar signals, of secondary or induced current, transmitter and receiver devices connected to said circuit, a condenser of great capacity in the ground or bridge circuit of the line, and a condenser or other inductor of small capacity in the line between the induced current instruments and the main line, or between said induced current instruments and the ground. 8th The combination, with a telegraphic circuit, and means for sending Morse or similar signals, of secondary or induced circuit, transmitting and receiving devices connected to such circuit, a condenser or other inductor in a ground or bridging-circuit between the Morse and induced current instruments, and an electro-magnet of comparatively high resistance also in the line circuit, substantially as described. 9th The combination, with a circuit, containing operating instru¬ments, over which primary currents are sent, of a secondary current line circuit, over which induced currents are sent, and an induced current compensating circuit for rendering the induced current home receiver neutral to outgoing induced currents, substantially as described.