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Clutch and Transmission Mechanism

Description: Patent for a clutch and transmission mechanism for automobiles which strengthens the load bearing of the clutch and allows greater flexibility in changing the load.
Date: January 25, 1910
Creator: Carpenter, John C.
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Partner: UNT Libraries Government Documents Department

Car Wheel.

Description: Patent for a new and improved car wheel. This design "consists in the combination, with a railroad-car axle having wheel-bearings of equal diameter throughout their whole lengths, of wheels the peripheries of which are provided with central flanges dividing each into two treads, the said wheels adapted to be pressed on the said bearings aforesaid, and to be removed therefrom, reversed, and again pressed thereon whenever the wear of the first tread shall render the same necessary" (lines 12-21).
Date: March 25, 1884
Creator: Melvin, Josiah W. & Clute, William H.
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Partner: UNT Libraries Government Documents Department

Canopy.

Description: Patent for a canopy for beds and sofas to keep out insects.
Date: February 25, 1908
Creator: Swanwick, Harry C.
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Partner: UNT Libraries Government Documents Department

Broaching-Press

Description: Patent for a device used with metal-working machines that provides more efficient finishing.
Date: December 25, 1900
Creator: Baker, Jason A.
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Partner: UNT Libraries Government Documents Department

Bulkhead.

Description: Patent for bulkhead that is "adapted for use as a sea wall or quay wall" (lines 10-11).
Date: March 25, 1919
Creator: Sands, Edward E.
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Partner: UNT Libraries Government Documents Department

Drill Head For Oil Wells

Description: Patent for Drill Head for oil wells, one object of the invention is to provide a drill head having the capacity to drill through strata of soft formation as may exist between rock layers and in broken formations of clay and boulders, as well as through rock formations themselves, the said drilling head being provided with roller bits or cutters and also with a fish tail cutter.
Date: October 25, 1921
Creator: Sorensen, Sam
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Partner: UNT Libraries Government Documents Department
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