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Water-Fence.

Description: Patent for the improved design of a water fence with specifications that allow the passage of a log without fully raising the fence; includes illustrations.
Date: March 26, 1901
Creator: Walton, John H. & Ball, William M.
Partner: UNT Libraries Government Documents Department

Fireproof and Waterproof Paint.

Description: Patent for a fireproof and waterproof paint composed of English resin, pulverized alum, graphite, mineral red, hydrocarbon, gloss oil, and coal tar.
Date: July 26, 1910
Creator: Barnes, James John
Partner: UNT Libraries Government Documents Department

Sash-Balance.

Description: Patent for improvements in window-sash balances, in which the two sashes are connected, “so that they will not only balance but also either may be raised or lowered without affecting the other.” (Lines 17-20) Illustration is included.
Date: May 26, 1891
Creator: Christian, James F.
Partner: UNT Libraries Government Documents Department

Compression Indicator

Description: Patent for a device that determining the compression of engine cylinders. Is meant to provide a more efficient and quicker way to test compression in explosive engine cylinders.
Date: November 26, 1918
Creator: Lambeth, Acey L.
Partner: UNT Libraries Government Documents Department
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