Archibald James Robertson



Archibald James Robertson (July 22, 1842 - February 23, 1915) was a Scots-born printer and inventor of a "gravity motor" that was claimed to be a perpetual motion machine, which was to be promoted and sold through the Robertson Perpetual Motor Company, as reported in the Chicago Tribune during 1889. A scheduled unveiling of the motor for early April 1889 was postponed, on the basis that a model built by the Chicago Machine, Die & Model Works did not operate correctly and that Robertson would have to privately construct one himself, but there was no further publicity or mention of it again thereafter, and only a diagram of the motor, published in the Chicago papers, is known to us at this time.