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Wall Construction

Description: Patent for a relatively simple constructed wall that is built using concrete slabs. It is constructed in a manner that requires less material thus resulting in a wall that is hollow all the while providing sufficient strength to hold weight and pressure. Includes illustrations.
Date: April 19, 1921
Creator: Needham, Edward F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Well-Packer.

Description: Patent for an improved well drilling device called a "packer", in which this version has a reduced likelihood of the seals between separate parts being damaged and needing replacement.
Date: April 13, 1920
Creator: Fletcher, Harold W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Spear

Description: Patent for a spear that is used to help withdraw or remove pipes that may get stuck in wellbores.
Date: April 20, 1920
Creator: Gray, Ellsworth
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pump

Description: Patent for an improvement on the design of pumps used in the oil industry. This uses a combination of water, sand, grits, and other sediments for deep wells.
Date: April 23, 1920
Creator: Scott, Floyd L.
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Partner: UNT Libraries Government Documents Department

Pump.

Description: Patent for a pump specifically designed for oil wells to make drilling oil more efficient, lucrative, and easier to perform.
Date: April 13, 1920
Creator: Carden, David A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Sample-Taking Device

Description: Patent for new and useful improvements for devices to take samples from wells. Specifically designed to take samples from hard formations, such as rock or other hard surfaces, being pierced from the drill from any depth in a well.
Date: April 5, 1921
Creator: Dodds, Redus D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Tire-Tool.

Description: Patent for a tool designed for mounting pneumatic tires on wheel rims.
Date: April 26, 1921
Creator: Boone, Daniel M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Washing-Machine

Description: Patent for a Washing-Machine which includes a base, a rotary rubbing drum with a foraminous concave rubbing bed of flexible material on the lower portion of the drum. Adjustable springs attached to the rubbing drum vary the drawing tension of the flexible rubbing bed.
Date: April 5, 1921
Creator: Seifert, John W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Washing-Machine

Description: Patent for an improved clothes containing basket within washing machines that is longer-lasting and less likely to become imbalanced. The device increases agitation of clothes and water.
Date: April 19, 1921
Creator: Seifert, John W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Wrench

Description: Patent for an improvement in the design of wrenches, particular for heavy work such as deep well drilling, but still being able to be designed at smaller sizes to handle lighter work.
Date: April 11, 1922
Creator: Reed, Clarence E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Photoprinter.

Description: Patent for a photograph printer that includes a mask mechanism to create prints of different sizes. Construction is such that the person using the printer can work the printer accurately and quickly complete work.
Date: April 11, 1922
Creator: Lockhart, William E.
Item Type: Refine your search to only Patent
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.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Attachment for Internal Combustion Motors

Description: Patent for an Attachment for Internal Combustion Motors. This new attachment provides many improvements in the regulation of auxiliary air, whether it enters or leaves the internal combustion motor (Shine). It also regulates hot or cold air, or can shut off the air supply entirely (Shine).
Date: April 26, 1921
Creator: Shine, John
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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