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Improvement in Ditching-Machines.

Description: Patent for the improvement of ditching-machines by way of new construction techniques.
Date: May 5, 1876
Creator: Austin, Matthew J.
Partner: UNT Libraries Government Documents Department

Washing-Machine.

Description: Patent for washing machine. Objective is to make the machine inexpensive and capable of washing clothes with rapid cycles without any harm to the fabric.
Date: August 5, 1902
Creator: Sparkman, William
Partner: UNT Libraries Government Documents Department

Separator-Guard.

Description: Patent for a separator-guard for spinning frames. It prevents "the yarn from being entangled in or caught by the devices for attaching the separators to their support" (lines 15-17). Illustrations included.
Date: July 5, 1912
Creator: Pitts, Arthur
Partner: UNT Libraries Government Documents Department

Design for a Fire-Screen

Description: Design patent for a fire-screen that has vertical bars decorated with balls or spherical ornaments.
Date: June 5, 1894
Creator: Gist, John A. L.
Partner: UNT Libraries Government Documents Department

Artificial Stone

Description: Patent for artificial stone.
Date: April 5, 1904
Creator: Steger, Virge
Partner: UNT Libraries Government Documents Department

Automatic Lock for Cotton Gins

Description: Patent for an automatic lock for cotton gins. It provides an automatic latch having a constant tendency toward the latching position, but yieldable to the opening of breast of the cotton gin. This is to prevent accidents involving the removing of obstruction in the gin happening to those removing the obstruction. Illustrations are provided.
Date: February 5, 1918
Creator: Henson, William Marion
Partner: UNT Libraries Government Documents Department
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