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[News Clip: Oil indict]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: November 6, 1981, 10:00 p.m.
Duration: 1 minute 21 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

Well-Drilling Rig.

Description: Patent, including illustrations, for "an improved well drilling rig or apparatus" which provides "a simple, efficient, and practical machine of this kind including revoluble means having a device operatively connected to a walking beam (from which a drilling tool is suspended), so that upon every complete revolution of the revoluble means, the drilling tool or bit will be given two direct drops, each alternating with the lifting movement of the drill bit" (page 1, lines 11-21).
Date: February 3, 1920
Creator: Bradford, Robert M.
Partner: UNT Libraries Government Documents Department

Pipe Tongs

Description: Patent for improvements to Pipe Tongs used in oil wells by improving the strength and gripping capability of the pipe.
Date: June 21, 1918
Creator: Reed, Clarence E.
Partner: UNT Libraries Government Documents Department

Break-Out Pin.

Description: Patent for a modified break-out pin on an oil derrick which makes it easier to release a wrench for unscrewing pipes when done, but still holds the wrench in place while in use.
Date: October 21, 1919
Creator: Headrick, James O.
Partner: UNT Libraries Government Documents Department
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