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Pipe-Coating Machine.

Description: Patent for a pipe coating machine which coats the pipes used for oil and gas pipe lines with a safety material like tar.
Date: April 26, 1921
Creator: Taber, Rock G.
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Partner: UNT Libraries Government Documents Department

Liquid Dispensing Apparatus

Description: Patent for dispensing liquid, such as gasoline, to automobile owners without an assistant. The apparatus should not become inoperable after a short period of time, and could be called a self-selling gasoline station.
Date: April 26, 1921
Creator: Miller, Emil B.
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Partner: UNT Libraries Government Documents Department

Process of and Apparatus for Progressive Electrostatic Separation of Comminuted Material

Description: Patent for a new process and equipment that improves upon prior work to separate comminuted materials. This patent explores the new process which "provides means for moving the electro-static waves or charges across the line of normal movement of the material upon a support of between two opposing stationary electrodes by so directing and controlling the electric charges, that each bar electrode is charged in succession across the deck and at an angle to the movement of such deck, whereby the d… more
Date: April 26, 1921
Creator: Sutton, Henry M.; Steele, Walter L. & Steele, Edwin G.
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Partner: UNT Libraries Government Documents Department

Bailer.

Description: Patent for improved bailer for deep wells (e.g., oil wells), cheaper to use and manufacture, with a better delivery gate and improved method for triggering gate closure upon bailer withdrawal.
Date: July 26, 1921
Creator: Swartz, Ira
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Partner: UNT Libraries Government Documents Department

Floor System.

Description: Patent for improved T-beams for floor support, which improve bonding between the beams and poured flooring and columns.
Date: April 26, 1921
Creator: Moore, Stuart B.
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Partner: UNT Libraries Government Documents Department

Condiment-Holder.

Description: Patent for condiment holder that can be filled with different condiments that can be dispensed separately or both at the same time. This design is also more durable, efficient, and low cost.
Date: April 26, 1921
Creator: Peters, Shafeh
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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