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Improvement in Tire-Tighteners.

Description: Patent for a device "for the purpose of tightening or loosening tires on wheels belonging to any kind of vehicles without shrinking or cutting the tires." (Lines 6-9) Includes instructions and illustrations.
Date: July 27, 1875
Creator: Horton, Henry A. R. & Hayes, Amos P.
Partner: UNT Libraries Government Documents Department

Improvement in Gang-Plows.

Description: Patent for an improved gang-plow with an adjustable crank-axle, mechanism to raise and lock the plows, and a brace for increasing rigidity.
Date: January 27, 1874
Creator: Cummins, Allison G. & Cummins, John R.
Partner: UNT Libraries Government Documents Department
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