Nikola Tesla U.S. Patent 685,954 - Method of Utilizing Effects Transmitted through Natural Media Patent Wrapper Page 31

434 Pancelled perd 19: The method hereinbofore described of utilizing effects or disturbances transmitted through the natural media from a distant source, which consists in causing, by means of such disturbances, variations of resistance in a circuit including an independent source of electricity and a condenser and thereby causing the condenser to be charged from such independent source, discharging the energy so accumulated in the condenser through the primary of a transformer at predetermined intervals of time and operating a receiver by the currents so developed in the secondary of the transformer. 20: In an apparatus for utilizing effects or disturbances transmitted through the natural media from a distant source, the combination of an electrical storage device, a charging circuit connected therewith and including a device sensitive to the action of the effects or disturbances and determining under their control the flow of current in the charging cirquit, a receiving circuit including a receiver, and means for periodically discharging the storage device through the receiving circuit, substantially as described. 21: In an apparatus for utilizing effects or disturbances transmitted through the natural media from a distant source, the combination of a condensex, a charging circuit connected therewith and including a source of electricity and a device sensitive to the action of the effects or disturbances and determining under their control the flow of current in the charging circuit, a receiving circuit including a receiver, and means for periodically discharging the condenser through the receiving circuit, substantially as described. 24