Nikola Tesla U.S. Patent 511,916 - Electric Generator Patent Wrapper Page 28

1 Sir:- In the Matter of the Application of Hon. Commissioner of Patents, Room 87. Nikola Tesla, No. 483,562, Filed August 19, 1893, Electrical Generators. facts. New York, November 16, 1893. We have carefully examined the French patent to Jablochkoff No. 115,829 of 1876, which was cited in office letter of November 14, 1893, as an anticipation of applicant's claims 1, 2 and 3. We do not regard the patent as any nearer an approach to the invention, nor as a better reference to the claims than the patents which have been previously cited, and we believe that the examiner will coincide in our views in this matter after consideration of the following In the patent in question the main purpose is merely to produce electric currents by the approach and separation of the induced and inducing elements of a generator, by reciprocating as distinguished from rotary movement and this the patentee accomplishes by attaching directly to the piston of a steam engine a coil or magnet. But it is entirely evident that an ordinary engine is contemplated for this purpose, an engine depending upon 35