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Apparatus for Hoisting Liquids from Wells.

Description: Patent for an “apparatus for raising liquid from wells by means of a compressed fluid, such as air or other vapors or gas“ (lines 9-12). The apparatus leaves liquid from the well under normal pressure during hoisting or pumping, and allows for varying amounts of liquid to be extracted.
Date: October 28, 1913
Creator: McCall, Duncan D.
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Partner: UNT Libraries Government Documents Department

Apparatus for Forming Gun Barrels.

Description: Patent for an apparatus for forming gun barrels that twists a sheet of metal into a tube for the gun barrel at a slight angle, while slightly flattening the tube into an oval shape. This method is supposed to create ribs within the gun barrel.
Date: September 10, 1917
Creator: Cole, William F.
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Partner: UNT Libraries Government Documents Department

Process of Removing Ink from Paper.

Description: Patent for a process of removing ink from paper that uses three chemical solutions that the paper is soaked in after an initial water bath to remove all the ink and produce paper pulp that can be recycled into new paper.
Date: November 14, 1911
Creator: Bonser, John Edward
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Partner: UNT Libraries Government Documents Department

Drilling-Machine

Description: Patent for a rotary drilling machine for drilling oil wells that has a stronger grip than previous drills.
Date: August 6, 1912
Creator: Black, Lee J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Hay-Rake

Description: Patent for a horse hay rake that can be folded and extended. Illustrations included.
Date: May 23, 1911
Creator: Lewallen, Edward D.
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Partner: UNT Libraries Government Documents Department

Drier

Description: Patent for a drier used for drying sugar canes from a sugar mill. Illustrations included.
Date: March 3, 1908
Creator: Rayner, Henry William
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Partner: UNT Libraries Government Documents Department

Cistern.

Description: Patent for a rain cistern, which can have oil put in it to prevent rust and sends out dirt from the cistern if it overflows.
Date: March 8, 1910
Creator: Fischer, Christian
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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