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Valve

Description: Patent for a valve. Illustration included.
Date: August 17, 1909
Creator: Smith, Frederick C.
Partner: UNT Libraries Government Documents Department

Rotating Steam-Feed for Saw-Mill Carriages.

Description: Patent for a steam feed for sawmill carriages, which reduces wear on the piston cylinder powering the sawmill carriage.
Date: August 31, 1909
Creator: Shoptaw, Charles
Partner: UNT Libraries Government Documents Department

Signal

Description: Patent for a signal that allows trainmasters to move trains in sections. Illustration included.
Date: August 17, 1909
Creator: Cairncross, Robert L.
Partner: UNT Libraries Government Documents Department

Core-Drill.

Description: Patent for a core drill for making bore holes in rocks to get out solid samples of the inside of rocks, which has an improved grabbing method for retrieving the piece of rock inside the hole.
Date: August 3, 1909
Creator: McLoughlin, Malacha J. & Wynn, John S.
Partner: UNT Libraries Government Documents Department
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