Date: July 7, 1885
Creator: Yarbrough, Ezekel James & Kyker, John Marshal
Description: Patent for a new and improved engine. This design has a "tread-wheel on which the animal is placed, and which is provided with a cog-wheel on its under side to mesh with a pinion placed on one end of the crank-shaft, a connecting-rod which is attached at one end to the crank and at the other to a pivoted lever . . . a second connecting-rod which is fastened to the upper end of the pivoted lever . . . a balance-wheel, and the main driving-shaft provided with a number of arms, each one of which carries a planet-wheel for the purpose of moving around a fixed wheel" (lines 15-29).
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