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Tie-Handling Apparatus

Description: Patent for a mechanism mounted on a hand car that will remove old rail ties and install new ones. This mechanism allows for the rails to remain undisturbed and the space underneath to be cleared for the new tie installation.
Date: June 6, 1916
Creator: Jones, Jefferson Davis
Partner: UNT Libraries Government Documents Department

Die for Sash-Weights.

Description: Patent for a die for sash weights that allows for easy removal of the die from the mold.
Date: June 13, 1911
Creator: Clarkson, William
Partner: UNT Libraries Government Documents Department

Cotton-Chopper

Description: Patent for an improved type of cotton chopper that thins rows of plants on both flat and rough terrain. Includes illustrations and instructions.
Date: June 10, 1913
Creator: Hellums, Oscar S.
Partner: UNT Libraries Government Documents Department

Sash Control

Description: Patent for a window sash control system. This mechanism allows the user to open a hard to reach window, such as one at the top of a stairwell, remotely via a series of ropes and pulleys.
Date: June 12, 1917
Creator: Coogle, John David
Partner: UNT Libraries Government Documents Department
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