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Improvement in Combining Bitumen and Clay.

Description: Patent for a method of combining bitumen, water, and clay for such purposes as plastering.
Date: September 24, 1872
Creator: Lea, Pryor
Partner: UNT Libraries Government Documents Department

Hay-Press

Description: Patent for improvements in hay presses "to simplify and cheapen the construction and render it more efficient in the formation of the hay into bales" (lines 16-18).
Date: September 3, 1889
Creator: McNeill, Charles De Witte
Partner: UNT Libraries Government Documents Department

Wrench

Description: Patent for Wrench
Date: September 12, 1916
Creator: Ponton, Henry H
Partner: UNT Libraries Government Documents Department

Feeding Mechanism for Cotten-Gins

Description: Patent related to cotton ginning plants, providing an improvement to the "mechanism controlling the feeding of the cotton supplied to the gins" (lines 13-14).
Date: September 23, 1913
Creator: Riemenschneider, Adolph
Partner: UNT Libraries Government Documents Department
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