Nikola Tesla U.S. Patent 1,061,142 - Fluid Propulsion Patent Wrapper Page 34

834 73 73' gia A Division 9, Room 142, Application of Nikole Tesla, filed October 21, 1909, Serial No. 523,- 832; subject: Fluid Propulsion. Hon. Commissioner of Patents: Sir:- lowing: DIN 9 Paper No. 6 L 2 1911 ....NT OFFICE. 6 In the application above named we now amend as follows: Ppliostion" inserz: On page 6, in line 10, after "application" insert filed January 17, 1911, Serial No. 603,049/ ✓ rotor. New York, November 28th, 1911. 1 Cancel claims 1 to 7 inclusive and substitute the fol1. The method of imparting energy to a fluid, which consiste in admitting it to the central portion of a system of plane speced surfaces, rotating said system by suitable power, and, by the adhesive and viscous properties of the fluid, causing it to flow, under the combined influence of redial and tengential forces, in a natural spiral path towards the periphery of said system. 2. The method of imparting energy to a fluid, which, consists in admitting it to the entral portion of a rotor having plane spaced surfaces, driving said rotor by suitable power, and, by the adhesive, and viscous properties of the fluid, causing it to flow, under the combined influence of radial and tangential forces, with continuously increasing velocity in a natural spiral path towards the periphery of the 3. The method of imperting energy to a fluid, which