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Work Holder

Description: Patent for a work holder. The invention provides adjustable jaws to clamp the work in position. Illustrations included.
Date: August 16, 1904
Creator: Eichblatt, Otto H.
Partner: UNT Libraries Government Documents Department

Insect-Trap.

Description: Patent for a trap for bedbugs made of pine wood with many nooks and crannies and springs attached to either side of the wooden block. It can be put on the bed frame and bedbugs hide in its dark recesses during the day, and then the trap can either be hit to close the springs and crush the bugs or put into hot water to drown them.
Date: July 16, 1907
Creator: Mattingly, Benjamin Joseph
Partner: UNT Libraries Government Documents Department

Root-Cutting Attachment for Plowing-Machines.

Description: Patent for a root-cutting attachment for plowing machines, which is composed of concave disk saws attached to the plow.
Date: March 16, 1909
Creator: Rountree, Joseph Gustave
Partner: UNT Libraries Government Documents Department

Root-Cutting Machine.

Description: Patent for a root cutting machine, which has saw guards.
Date: March 16, 1909
Creator: Rountree, Joseph Gustave
Partner: UNT Libraries Government Documents Department

Hog-Crate

Description: Patent for a crate for use in shipping live pigs which allows for the free movement of the animal's legs while maintaining separation from other animals for identification purposes, including illustrations and instructions for use.
Date: April 16, 1918
Creator: Hirst, John A. & Hirst, Samuel L.
Partner: UNT Libraries Government Documents Department
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