Texas Patents - 3 Matching Results

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Roof Screw.

Description: Patent for a new and improved roof screw. This design consists, "[a]s a new article of manufacture, [in] a screw consisting of a threaded shank having an integral head, an enlarged collar or flange on said shank below the head thereon, and an elastic cushion on the shank immediately below the enlarged collar or flange, for the purpose described" (lines 60-66).
Date: September 23, 1890
Creator: Corley, Daniel B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pump.

Description: Patent for a simple, double-acting pump.
Date: March 23, 1909
Creator: Costephens, Elgin A. & Snow, Deskin D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Header.

Description: Patent for the improvement of a header, which is a part that aids the carry of grain.
Date: January 23, 1912
Creator: Whitworth, Sam P.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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