Nikola Tesla U.S. Patent 645,576 - System of Transmission of Electrical Energy Patent Wrapper Page 68

186 with the impulses. 7: The method hereinbefore described of transmitting. electrical energy through the natural media, which consists in producing between the earth and a generator terminal elevated above the same, at a generating station, electrical impulses of a wave length so related to the length of the generating circuit or conductor as to produce the maximum potential at the elevated terminal, and of sufficiently high electro-motive force to render elevated air strata conducting, causing thereby a propagation of electrical impulses through the air strata, and collecting or receiving at a point distant from the generating station the energy of such impulses by means of a receiving circuit having a length of conductor similarly related to the wave length of the impulses. 8: The method hereinbefore described of transmitting electrical energy through the natural media, which consists in producing between the earth and a generator terminal elevated. above the same, at a generating station, a sufficiently high electro-motive force render elevated air strata conducting, causing thereby a propagation or flow of electrical energy through the air strata, by conduction, collecting or receiving the energy so transmitted by means of a receiving circuit at a point distant. from the generating station, using the receiving circuit to energize a secondary circuit, and operating translating devices by means of the energy so obtained in the secondary circuit. -19This page retyped from microfilm for better readability - Ed.]