UNT Libraries Government Documents Department - 8 Matching Results

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Casing-Elevator.

Description: Patent for a casing elevator used to remove casings of various diameters from wells. The main specialty of this invention is the use of hinged sections containing pivoted jaws to clamp around the casings.
Date: November 8, 1921
Creator: Boyter, Arthur J.
Item Type: Refine your search to only Patent

Garment-Supporter.

Description: Patent for a new garment-supporter, designed "to provide a simple, inexpensive, and efficient device adapted to support the hose and lower garments from the shoulders and capable of permitting perfect freedom of movement of every part of the body without chafing the same" (lines 12-17), which includes illustrations and instructions.
Date: August 8, 1905
Creator: Duckworth, Mary Eliza
Item Type: Refine your search to only Patent

Bed

Description: Patent for a bed. This invention is designed for invalids that also provides a bed pan. Illustration included.
Date: January 8, 1907
Creator: Myers, Nancy S. A. E.
Item Type: Refine your search to only Patent

Car-Coupling.

Description: Patent for improvements in car-couplings by enhancing a device called pin-lifter to couple and uncouple rail cars. Illustration is included.
Date: September 8, 1891
Creator: Weathersby, Sarah Ann
Item Type: Refine your search to only Patent
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