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Well-Drilling Machine.

Description: Patent for an oil well drilling machine, designed to be easy to use and inexpensive to construct.
Date: February 22, 1921
Creator: Bradshaw, Albert Cidney
Partner: UNT Libraries Government Documents Department

Washboiler

Description: Patent for improved Washboilers. The improvements provides a more efficient circulation of water to insure the proper cleaning of fabrics and prevent damage of the fabric.
Date: February 22, 1921
Creator: Patterson, Thomas Allison.
Partner: UNT Libraries Government Documents Department

Pipe and Like Stem.

Description: Patent for improved smoking equipment stems which prevents saliva from running down the stem. The end of the stem has a new design which extends upwards and then wraps forward and downward, leaving a slot where no saliva can enter.
Date: February 22, 1921
Creator: Crossman, Alvin Amos
Partner: UNT Libraries Government Documents Department

Piston for Deep Well Pumps

Description: Patent for the development of a new and improved deep well pump used for the pumping of oil.
Date: February 22, 1921
Creator: Humason, Granville A.; Bashara, Sam F. & Barraco, Paul J.
Partner: UNT Libraries Government Documents Department

Strain Jacket for Telephone Poles

Description: Patent for a new and useful improvement in strain jackets for telephone poles.
Date: February 22, 1921
Creator: McKnight, William M.
Partner: UNT Libraries Government Documents Department

Screen Fastener

Description: Patent for the attachment method for wire screens to a frame to prevent the detachment of the wire screen from the frame.
Date: February 22, 1921
Creator: McCaffrey, Horace
Partner: UNT Libraries Government Documents Department

Automobile Signal

Description: Patent for the creation of signals to be used in conjunction with automobiles during traffic.
Date: February 22, 1921
Creator: Ziegenbalg, Emil
Partner: UNT Libraries Government Documents Department

Clutch and Transmission Device

Description: Patent for new and useful improvements in the development of clutch and transmission devices.
Date: February 22, 1921
Creator: Hubbard, Adra M.
Partner: UNT Libraries Government Documents Department

Bushing Extractor and Inserter

Description: Patent for the creation of a manner in the method of bushing extractors and inserters.
Date: February 22, 1921
Creator: Renfro, Leonardo E.
Partner: UNT Libraries Government Documents Department

Combined Stool and Table

Description: Patent for a combined stool and table that can be folded and is portable for use in cars or at picnics; includes "knife, fork and spoon compartments" (line 25).
Date: February 22, 1921
Creator: Lewis, Charles E.
Partner: UNT Libraries Government Documents Department

Apparatus For Forcing Fluid From Wells.

Description: Patent for a narrow device to use fluid dynamics to remove certain fluids without loss of others. The apparatus is let down the well until one end is submerged before pressurized with air to seperate fluids and bring oil up to the surface of the well.
Date: February 22, 1921
Creator: Bodungen, Charles G.
Partner: UNT Libraries Government Documents Department
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