UNT Libraries Government Documents Department - 6 Matching Results

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Artificial Stone

Patent for artificial stone.

Date: April 5, 1904

Creator: Steger, Virge

Automatic Lock for Cotton Gins

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

Design for a Fire-Screen

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.

Improvement in Ditching-Machines.

Patent for the improvement of ditching-machines by way of new construction techniques.

Date: May 5, 1876

Creator: Austin, Matthew J.

Separator-Guard.

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

Washing-Machine.

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