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Antifriction-Device-For-Sucker-Rods.

Description: Patent for an antifriction device designed to protect the rod (sucker rod), rope, or coupler from wear. A sucker rod joins the components of a piston pump in an oil well.
Date: November 4, 1902
Creator: Black, William Leslie
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Antifriction Hollow-Tube Sucker-Rod for Deep Wells

Description: Patent for a "simple and inexpensive means for coupling the tubular sections of the sucker rod together and guiding said rod with little or no friction into the well casing or tube" (lines13-17). This object is to be used in "pumping water, oil, and other liquids from deep wells"(lines 11-12).
Date: October 15, 1918
Creator: Black, William L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

[Affidavit of B. A. Duffy]

Description: Affidavit of B. A. Duffy swearing that he commenced drilling an oil and gas well on land in Concho and Menard Counties, Texas on September 1, 1939 and it began producing oil in commercial quantities only after that date. This document is unsigned.
Date: August 1940
Item Type: Refine your search to only Legal Document
Partner: Hardin-Simmons University Library
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