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Wrench for Rotary Well-Drills.

Description: Patent for a wrench designed to assist in working with rotary well drills. The wrench is adapted for unscrewing the coupling that attaches a drill point to a pipe section, as well as for detaching the pipe sections from one another. The advantage of the wrench is in allowing convenient detachment of the parts of a well drill quickly and efficiently.
Date: October 21, 1913
Creator: Lebus, George Franklin
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pump

Description: This patent is for pumps. This patent allows for the pump barrel to be readily disengaged from its normal positive engagement with the well tube for removal from said tube for repairs or any other reason.
Date: March 19, 1918
Creator: Perry, Sherman V.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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