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Well-Tube Holder
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.
System:
The Portal to Texas History
Drill-Cable Clamp.
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
System:
The Portal to Texas History
Door.
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
System:
The Portal to Texas History
Air-Pump.
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
System:
The Portal to Texas History