92 (No Model.) N. TESLA. APPARATUS FOR PRODUCING ELECTRIC CURRENTS OF HIGH FREQUENCY AND POTENTIAL. No. 568,176 Fig.1 A¹- L KWitnesses: Raphael Netter Drury W. Chofer H Patented Sept. 22, 1896. K 2

31 T 1 J (No Model.) N. TESLA. APPARATUS FOR PRODUCING ELECTRIC CURRENTS OF HIGH FREQUENCY AND POTENTIAL. No. 568,176. Patented Sept. 22, 1896. LA ♬" M WITNESSES: M. Luvrone Dyer Edwin B. Hophmson

94 H (Serial Number) 1896. 45. 568176 Nikola Tesla, Patent No.. Of New York, County of. State of New York, Invention.... Parts of application filed. Production of Electric burren of High Frequency and

Appli Application 16. Ps. Jun 22. "The Litter "Urdt to D. + Prely 1 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 17. 18. 19. 20. 1896 CONTENTScation. 21. 22. 23. -ELECTRICITY, ive Power of Power, papers

96 State of New York, ) : County of New York. ) ss: Nikola Tesla, the above-named petitioner, a citizen of the United States, and resident of New York, in the County and State of New York, being duly

E T JJLJJLJUJEI LIETU the Commissioner of Patents: Your petitioner, Nikola Tesla, a citizen of the United States, and resident of New York, in the County and State of New York, prays that letters

98 рите 8-96 To all whom it may concern: Be it known that I, Nikola Tesla, a citizen of the United States, residing at New York, in the county and Sta te of New York, have invented certain new and

application to and use with exis ting circuits carrying direct currents, such as the ordinary municipal incandescent lighting circuits. The way in which I accomplish this so as to meet the

100 Sub. A June 8-1896 duced at each break of the main circuit, furri shes the proper current for charging the condenser, which may therefore be small and inexpensive. Moreover, it will be observed

JULI 31311 UJ (11:1 C Spent B Jane 8-96. discharging. The controller C is designed to be rotated by any proper de vice, such for example, as an electromagnetic mo tor, as shown in figure 2, receiving

102 er. These elements may be mechanically associated in any convenient andcompact form, but so far as their general arrangement and relations are concerned I prefer the relative dis position

300DDDDDDDDELELE) ņ means for making and breaking the circuit through said coils, a condenser around the point of interruption in the said circuit and a transformer having its primary in circuit with

104 Foon: Ma... 85. Communer of Fatta Washington, D. Nikola Tesla, U PATENT OFFICE, MAILED MAY 5 1896 DEPARTMENT OF THE INTERIOR. UNITED STATES PATENT OFFICE, c/o Kerr, Curtis & Page, Aur s'ention

DELLIJ T ] A Room 89. In the matter of the application of Nikola Tesla, No. 588,534, Filed April 22, 1896, Apparatus for the Production of Electric Currents of High Frequency and Potential. Hon

106 We are not sure that we clearly apprehend the first suggestion of the Office letter of May 5th, but would state that for purpo ses cf illustration we have now desi gnated the vertical lines A' A'

T J T T Room No.85. Alwayplations et torcreved to The Commissioner of Pataan, Washingtsa, D. C." N. Tesla, U.S. BATENT OFFICE --MAILED JUNE 2 136 DEPARTMENT OF THE INTERIOR, UNITED STATES PATENT

108 Room 85. Application of Nikola Tesla, No. 588,534, Filed April 22,1896. Apparatus for the Production of Electric Currents of High Frequency and Potential. Hon. Commissioner of Patents, Sir: In the

T 다. T J J Prose mad 172.-ELECTRICITY. Metiv Power. -Troission capuce. Phase Modification. Fig. 1 WITNESSES: М.. болтол фугл Edine B. Hopkins on. 588534 45Nikola Tesla INVENTOR 87 Kerr, Curtis & Page