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Plumb-Level.

Description: Patent for a modified and improved plumb-levels that allow for consistent and accurate readings, as well as the ability for the level to adjust after being harmed.
Date: January 27, 1914
Creator: Rutledge, Caleb C.
Partner: UNT Libraries Government Documents Department

Antifreezing Outlet-Valve for Tanks.

Description: Patent for a new and improved "valve-operating mechanism which cannot be rendered inoperative by ice forming in the tank, and also whereby the valve itself cannot become frozen" (lines 26-30) including illustrations.
Date: May 5, 1914
Creator: Whipp, John W.
Partner: UNT Libraries Government Documents Department
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