Nikola Tesla U.S. Patent 1,061,206 - Turbine Patent Wrapper Page 45

3131 LJLJJ GJ AIL S. Patent Office, MAR 2 1912 Busion XVIII C' 1912 PATEN DOM Division 18, Room 325. Application of Nikola Tesla, filed January 17, 1911, Serial 603,049, for Rotary Engines Turbines. Sir:- IN THE UNITED STATES PATENT OFFICE. Hon. Commissioner of Patente. No. amend as follows: and Amendment #7 9088 New York, February 29th, 1912.. In the matter of the application above named we now -1On pege 2, line 2, cancel "a" before "fluid". on same page, line 18, cancel the words "propelled sor" 100 On same page, line 23, cancel the words "receiving or" Cancel from "but, as I believe", etc., beginning line 4 on page 4 to the end of the fourth line from the bottom of page 5, and substitute as follows "In the drawings, therefore, I have illustrated only the designed A form of apparatus for the thermo-dynamic conversion of energy, a field in which the applications of the principle have the greatest practical value. Fig 1 is a partial end view, and Fig. 2 a vertical cross-section of a rotary engine or turbine, constructed and adapted to be operated in accordance with the principles of my invention. The apparatus comprises a runner composed of a plurality of flat rigid disks 13 of suitable diameter, keyed to a shaft 54 909