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Back-Pressure Valve

Description: Patent for a back pressure valve for well drilling which may be "removed from the well with facility and despatch" (lines 18-20).
Date: January 18, 1910
Creator: Neighbors, Charles C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

McCulloch County, Texas : dots show producing wells and wells drilling the Lohn Shallow Field, derricks show deep tests.

Description: Map shows boundaries and holders of oil leases, locations of wells, landowners, towns, railroads, roads, and course of the San Saba and Colorado Rivers and their tributaries. Scale not given. Text on the back of the map discusses oil drilling in McCulloch County, Texas and the geology of the area.
Date: [1910..1930]
Creator: Brady Chamber of Commerce
Item Type: Refine your search to only Map
Partner: University of Texas at Arlington Library

Well-Tube Holder

Description: Patent for a well tube holder for removing pipes from wells and holding them in place. Illustrations included.
Date: May 3, 1910
Creator: Preston, Lyman L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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