Tesla patent drawings

Nikola Tesla Patents

Tesla was granted nearly 200 patents worldwide

J J J J Hon. Commissioner of Fatents, Sir:- Room 87. In the Matter of the Application of Nikola Tesla, No. 483,562, Filed Aug. 19, 1893, Electrical Generators December 4th, 1893. In the matter of the above application we desire to submit the following statement in view of the Examiner's letter of November 22. The grounds for the refusal of claims 1, 2 and 3 seem to us to be these. - In a French pat ent to Jablochkoff, of 1876, the plan of attaching the induced element of an electric generator to the reciprocating piston rod of a steam engine is described, of the kind of engine contemplated, and so much of the engine as is shown is a mere conventional representation of the piston and cylinder of an ordinary engine such as commonly employed for driving machinery. Such engines usually have some form of governing or controlling device to regulate their action or speed, but, it is assumed, that at that date (1876) reciprocating engines wi the out governors, fly wheels or the like, and which were free to reciprocate under the action of steam, were well known, hence, it is not to be assumed, in the absence of any direct evidence to the contrary that such an engine was not con templat ed by Jablochkoff. There is no description 39