Nikola Tesla Patents
J T 1 1 To all whom it may concern:- D Be it known that I, Nikola Tesla, a citizen of the United States, residing at New York, in the County and State of New York, have invented certain new and useful improvements in apparatus for producing electrical cur= 3 rents of high frequency, of which the following is a 12 specification, reference being had to the drawings accompanying and forming a part of the same. This invention is an improvement in apparatus for producing electrical currents of high frequency in accordance with the general plan heretofore invented and practiced by me, and based upon the principle of charging a condenser, or circuit-possessing capacity, and discharging the same through a circuit of low self-induction, so that rapid electrical oscillations are obtained.. To secure this result I employ some means for intermittently charging the condenser and for discharging it through the circuit of low self-induction, and among the means which I have heretofore employed for this purpose was a mechanical contact device which controlled both the charging and the discharge circuit in such manner that the condenser was alternately charged by the former and discharged into the latter. My present improvement consists in an apparatus for effecting the same result by the use use of a circuit-controiler of special character, in which the continuity of the paths for the current is established at intervals by the passage of sparks across a dielectric. In carrying out my present improvement I employ a -1113
