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Threading Apparatus For Pipes.

Description: Patent for improvements of the threading apparatus for pipes through a simple attachment to automobiles wheels. Illustrated figures with descriptions are presented to easily show the ways in which the device attaches and is used.
Date: December 28, 1920
Creator: Adkins, Otto O.
Partner: UNT Libraries Government Documents Department

Dry Closet

Description: Patent for a dry closet.
Date: November 28, 1916
Creator: Pyle, Eben W.
Partner: UNT Libraries Government Documents Department

Pump

Description: Patent for improvements to pumps in working barrels, packing, and packing chambers, the purpose of which is to eliminate easily worn parts and improve the efficiency of these pumps, including illustrations.
Date: November 28, 1922
Creator: Kerr, Michael A.
Partner: UNT Libraries Government Documents Department

Rope-Socket.

Description: Patent for rope socket "for use in connection with oil well drilling bits" (lines 13-14) "which can be quickly, easily and conveniently adjusted to provide a swivel or nonswivel socket as desired" (lines 16-19) including illustrations.
Date: May 28, 1917
Creator: McConnell, Scott Russell
Partner: UNT Libraries Government Documents Department

Pipe Tongs.

Description: Patent for pipe tongs for drilling wells using rotary systems. The tongs are designed to be securely held against the drill stem using a lever, making them simple and economical to manufacture.
Date: June 28, 1921
Creator: Hill, Richard D.
Partner: UNT Libraries Government Documents Department

Friction Transmission Mechanism.

Description: Patent for improvements toward friction transmission mechanisms. It would eliminate the use of some gears.
Date: March 28, 1921
Creator: McDermott, Henry
Partner: UNT Libraries Government Documents Department
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