John Worrell Keely

John Ernst Worrell Keely (September 3, 1837 - November 18, 1898) was an American mechanic and inventor who claimed to have discovered means of exploiting an etheric force to convert minute quantities of air and water into motive force, as a form of virtual perpetual motion, which he claimed to demonstrate using machines he constructed that were variously called vibratory-generators and hydro-pneumatic-pulsating-vacuo-engines.

Selected Patents

 * US118022A. "Improvement in Fly-Wheels." 15 Aug. 1871.