Texas Patents - 9 Matching Results

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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.
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Partner: UNT Libraries Government Documents Department

Shear-Sharpener.

Description: Patent for an improved shear sharpener which has a "new and novel construction by which shears are quickly and properly sharpened, ... whereby a shear is held at the proper bevel while being moved over an oilstone or the like" (lines 12-16), including illustrations.
Date: April 3, 1906
Creator: Jeffrey, James C.
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Partner: UNT Libraries Government Documents Department

Oil Well Drill.

Description: Patent for a new rotary oil drill with improvements to anchor the drill-pipe, improve oil flow, and prevent blow-outs of the drill-pipe.
Date: July 3, 1903
Creator: Decker, Harry R.
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Partner: UNT Libraries Government Documents Department

Hoisting Drum.

Description: Patent for an invention that "relates to improvements in hoisting drums" (line 15-16). Structure, objective, and illustrations of hoisting drums are included.
Date: July 3, 1917
Creator: Howard, Henry Fischer
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Partner: UNT Libraries Government Documents Department

Automatic Safety Target.

Description: Patent for a target device for pistols and rifles which allows for the motion of the target being hit to move another target into view.
Date: August 3, 1920
Creator: Briggs, George F.
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Partner: UNT Libraries Government Documents Department

Well-Drilling Rig.

Description: Patent, including illustrations, for "an improved well drilling rig or apparatus" which provides "a simple, efficient, and practical machine of this kind including revoluble means having a device operatively connected to a walking beam (from which a drilling tool is suspended), so that upon every complete revolution of the revoluble means, the drilling tool or bit will be given two direct drops, each alternating with the lifting movement of the drill bit" (page 1, lines 11-21).
Date: February 3, 1920
Creator: Bradford, Robert M.
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Partner: UNT Libraries Government Documents Department
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