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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
Object Type:
Patent
System:
The Portal to Texas History
[Letter from F. A. Mood to Ann M. Giddings and Louise Giddings - July 12, 1878]
Letter written by F. A. Mood to Mrs. Ann M. Giddings and Miss Louise Giddings. Mood expresses his sympathies for the women's loss and comforts them with religious commentary.
Date:
July 12, 1878
Creator:
Mood, F. A.
Object Type:
Letter
System:
The Portal to Texas History
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
Object Type:
Patent
System:
The Portal to Texas History