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Improvement in Horse-Powers
Patent for improvement in horse-powers through gravity and tread-power of a farm animal, for use as a power source for farm equipment, with illustration.
Date:
August 30, 1878
Creator:
Blain, John Harvey
System:
The Portal to Texas History
Improvement in Gang and Sulky Plows.
Patent for improvements in gang and sulky plows which "consists in an axle having the double crank of the transporting-wheel journaled upon the outer bend of said crank, working between the side beams of the plow-frame, and the connecting-rods pivoted, respectively, to the said bars and to the end and inner bend of said crank" (lines 17-23). Includes instructions and illustrations.
Date:
January 8, 1878
Creator:
McCormick, John Robert
System:
The Portal to Texas History