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Well-Screen

Description: Patent for a well-screen which is used in oil or water wells for screening out sand from the inflowing fluids
Date: February 19, 1918
Creator: Rodrigo, Henry, Sr.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Well-Screen

Description: Patent for a modification to Mr. Layne's previous Patent No. 1,062,717, including illustrations.
Date: February 24, 1914
Creator: Layne, Mahlon E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Improvement in Vapor-Burners.

Description: Patent for, "an improved construction and arrangement of vapor-burner, by which the same is readily lighted, adjusted to a larger or smaller flame, or extinguished" (lines 13-17). Illustration included.
Date: February 27, 1877
Creator: Sawyer, Frederick A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Rotary Boring-Drill.

Description: Patent for an improved rotary boring-drill of which the rotary disk drill is constructed in a manner to prevent clogging from soft material balling up. The channel for flushing water is also arranged to keep cutters clear. Including illustrations.
Date: February 5, 1918
Creator: Hughes, Howard R.
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Partner: UNT Libraries Government Documents Department

Saw Filer and Gummer

Description: Patent for adding an attachment to aid in "sharpening and gumming the teeth of circular saws particularly such saws as are used in cotton gins" (lines 13-15). The attachment works with a device for which the inventor previously received a patent. (Patent No. 1,180,270)
Date: February 3, 1920
Creator: McMicken, Thomas W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Oscillating Engine

Description: Patent for improvements to oscillating steam engines, including illustrations and instructions.
Date: February 26, 1884
Creator: Gilbert, John Oakley
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Drill Bit

Description: Patent for improvements in drill bits, particularly in the application used in drilling in soft formations, such as clay, gumbo, or similar material. The purpose of the invention is to provide a way to prevent the sticking of material to the drill and drill collar while the drilling operation is being performed.
Date: February 14, 1922
Creator: Childs, William L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Compound Air-Compressor.

Description: Patent for an improved Compound Air-Compressor by having four cylinders, in pairings of a high pressure and a low pressure cylinders. The air from the low pressure cylinder will be fed to the high pressure cylinder. The pistons will work in succession rather than simultaneously.
Date: February 17, 1920
Creator: Jones, Oceola
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Attachment for Bale-Forming Presses.

Description: Patent for an attachment for bale-forming presses consisting of needles, wire storage spools, and a "yieldable mechanism" allowing the wire to pass (line 17) including instructions and illustrations.
Date: February 26, 1918
Creator: Freeman, Lawrence K.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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