D. W. Colvin

D. Whit (D. W.) Colvin (July 24, 1874 - November 5, 1933) was an American inventor who claimed several attempts at the manufacture of perpetual motion machines. The most infamous was the Colvin spring motor, which became the focus of U.S. national press and federal court attention when Colvin was arrested on fraud charges in 1921, the device described as "a contrivance of a wheel, a disk and a spring, which would go around for sometime," though apparently not indefinitely.

Vibration Motor (1930)


Of interest, Colvin copyrighted a promotional pamphlet around this time with the title Modern Miracle Power Generating Apparatus (AA58331).