Nikola Tesla Patents
(( TO ALL WHOM IT MAY CONCERN: per 9. 200 H₂ BE IT KNOWN that I, NIKOLA TESLA, a citizen of the United States, d residing at New York Jity, in the county and State of New York, have invented a new and useful improvement in methods of, and apparatus for, utilizing.effects transmit itted from a distance to a receiving device through the natural media, of which the following is a specification, reference being had to the accompanying drawing which forms a part of the same: Sub a' The subject of my present invention is an improvement in the art of utilizing effects transmitted from a distance to a receiving device through the natural media, and it "I consists in a novel method end novel apparatus hereinafter described. My invention is particularly useful in connection with methods and apparatus for operating distant receiving devices by means of electrical disturbances produced by proper transmitters and conveyed to such receiving devices through the natural media, but it obviously has a wider range of applicability, and may be employed, for example, in the investigation or utilization of terrestrial, solar or other disturbances produced by natural causes. Several ways or methods of transmitting electrical disturberges through the natural media and utilizing them to operate receivers have heretofore been devised by myself and others, and applied with more or less success for accomplishing a variety of useful results. 1 411
