Texas Patents - 3 Matching Results

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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.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Plow.

Description: Patent for a new and improved plow. This design consists in "[t]he combination, with the plow-beam and plow, of the semicircular stay-brace pivotally secured to the beam at one end and at the other end formed with a slot and a horizontal portion extending across the top of the beam, the bolt passed through the slot into the beam, the colter, and the adjustable wedge-shaped block having a plurality of depressions upon its inner face to receive the horizontal portion of the brace" (lines 81-90).
Date: October 14, 1890
Creator: Dickerman, Lewis M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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