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Well-Tube Holder

Description: Patent for a well tube holder for removing pipes from wells and holding them in place. Illustrations included.
Date: May 3, 1910
Creator: Preston, Lyman L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Door.

Description: Patent for a door "that can be secured in either open or closed position either from the exterior or interior of the building on which the door is mounted" (lines 9-12) including instructions and illustrations.
Date: May 19, 1914
Creator: Niemann, Otto
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Drill-Cable Clamp.

Description: Patent for Drill-Cable Clamp is for a device that clamps the rope to which the drill connects. The rope can be rotated, while connected to both the drill and the drilling machine securely.
Date: May 6, 1913
Creator: Clayton, Robert Fentress
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Air-Pump.

Description: Patent for an air pump improvement that simpler and cheaper to produce. It also provides a description of "the combination and arragement of parts" (lines 14-15), including illustrations.
Date: May 16, 1916
Creator: Runge, Friedrich Albert
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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