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Well-Drilling Apparatus.

Description: Patent for an Artesian or oil well drilling apparatus that has a detachable drill-bit in its tubing and has an "improved means whereby an expansion drill bit or blade of any preferred construction can be secured to or detached from the drill tubing without removing the latter from the well" (lines 12-15). The tubing does not accidentally detach, and the tubing can rotate in either direction.
Date: October 2, 1894
Creator: Horton, Stephen A.
Partner: UNT Libraries Government Documents Department

Hay Press.

Description: Patent for improvements to a hay press to be manufactured easily and cheaply while maintaining its effectiveness in pressing hay into bales.
Date: July 17, 1917
Creator: Pate, William H. & Rhyne, Arthur M.
Partner: UNT Libraries Government Documents Department

Cultivator.

Description: Patent for a new and improved cultivator. This design consists in "a draft-bar, a connecting rod or bar which connects the two beams together at any suitable distance . . . vertical standards which are secured to the rear ends of the beams, adjustable connecting-bars . . . and a connecting-rod which connects the bars together in a line with the beams . . . to loosely attach two cultivators to a single draft-bar, and then connect these two cultivators together . . . [so] each of the cultivators … more
Date: June 11, 1889
Creator: De Witt, Martin V.
Partner: UNT Libraries Government Documents Department
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