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Gate Valve

Description: Patent for gate valves for oil and other types of reservoirs.
Date: February 22, 1916
Creator: Barry, Herbert & Hindglass, Allen
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Sample Taking Device.

Description: Patent for a device that takes samples of the strata or formation through which a well is being drilled without mixing the soil with water within the reservoir.
Date: September 19, 1919
Creator: Rembert, William E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Four Women on a Ladder

Description: Photograph of four women standing on a ladder that is leaning against a water cistern. Louise Howell Conn is on the bottom rung and Alyce Howell is just above her with two unidentified women above them. They all wear blouses and long skirts. Alyce Howell wears a neck tie. In the background are houses, trees and fences.
Date: unknown
Item Type: Refine your search to only Photograph
Partner: Heritage House Museum

Trough-Valve

Description: Patent for an automatic float valve used in water troughs. Illustrations included.
Date: July 6, 1909
Creator: Mauldin, Blake I.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Brush.

Description: Patent for brush used to add adjustable sized stripes onto vehicles and to add lettering onto signs. The brush contains its own paint reservoir.
Date: September 10, 1911
Creator: Penn, George Rollins; Penn, G. R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pump-Strainer.

Description: Patent for a pump-strainer that cleans and separates water or other liquid that is drawn from wells or reservoirs.
Date: May 28, 1895
Creator: Durant, George W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Journal-Lubricator.

Description: Patent for improvements in lubricators by mounting a box, with a pair holes near its ends, on a bearing; with partitions across the box adjacent each holes, a pair of cord shape wicks and a depending flange, depressing the wicks to the bottom of the box. “When the box filled with liquid lubricant and the cover closed, the lower edge of the flange depresses the wicks, submerging them at the center of the box, and the wicks absorb oil at this point, the oil is lead thence by capillary attraction … more
Date: May 19, 1891
Creator: Hubbard, Benjamin V.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Axle-Box.

Description: Patent for an axle-box for vehicle wheels that "contains a lubricant-receiving recess from which the lubricant is automatically fed to the spindle of the axle as necessity may occasion" (lines 10-13).
Date: May 8, 1894
Creator: Casto, Tony Lo
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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