Nikola Tesla U.S. Patent 725,605 - System of Signaling Patent Wrapper Page 66

680 Sub. Spe Room 91. 23.847 Seeb Specificatione F!! Jany 26 100 3 Application of Nikola Tesla, No. 23,847, filed July 15, 1900. Systems of Signalling. Sir:- Hon. Commissioner of Patents, 11//2 1903 New York, January 23rd, 1903. CU As numerous minor corrections and changes in the specification and claims of the above named application have. been made, we hereby cancel the entire specification and claims as now presented, and substitute therefor as follows: "To all whom it may concern: Se Be it known that I, Nikola Tesla, a citizen of the United States, residing at the forosh of Manhattan, in the fity, gounty, and State of New York, have invented certain new and. usefulimprovements in Systems of Signalling, of which the following is a specification, reference being had to the drawings accompanying and forming a part of the same. = Spain certain systems for transmitting intelligible messages, or governing the movements and operations of distant automata electrical impulses or disturbances, produced by suitable apparatus are conveyed through the natural media to a distant receiving circuit, capable of responding to the impulses and thereby effecting the control of other appliances. Generally, a special device, highly sensitive, is connected to the receiving circuit which, in order to render it still more susceptible and to reduce the liability of its being affected by extraneous disturbances, is carefully adjusted 30 as to be in tune with the transmitter. By a scientific design of the -1