Nikola Tesla U.S. Patent 511,916 - Electric Generator Patent Wrapper Page 26

T J raised, No instance is shown in which the generator has been selected with any reference whatever to its natural period of electrical vibration, as regards the period of the engine. The claim is for a novel combination of engine and generator of approximately equal natural periods, that of the engine be ing constant. The claim, it seems to us, expresses a distinctly new and important combination. In the reference the engine has not and cannot have a constant period of oscillation. Reconsideration is request ed. Respectfully, Demean those altys presta 33