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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

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.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Well-Drilling Device.

Description: Patent for adding a drilling stem to a well-drilling device, with illustration. This invention will improve operation of devices.
Date: February 10, 1920
Creator: Church, Walter Lee
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Window Shade

Description: Patent for "Improvements in Window-Shades" (line 6) including illustrations.
Date: February 10, 1920
Creator: Johnson, Charles G.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Staple-Setting Device.

Description: Patent for a staple setting device. This invention sets staples in blind slats and sticks with a special reference to assist with the setting of staples for the purposes of both construction and repair.
Date: February 21, 1922
Creator: Chamberlain, Kit Carson
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Drill Bit

Description: Patent for a drill bit that can pass through the drill stem, making the process of drilling faster and easier.
Date: February 24, 1920
Creator: Clements, Frank L., Jr.
Item Type: Refine your search to only Patent
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.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Oil Well Screen.

Description: Patent for a new oil-well screen that prevents sand from entering an oil or water well but will allow oil and water through.
Date: February 14, 1922
Creator: Dobson, John A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Constant-Volume Valve.

Description: Patent for an improved constant-volume valve that helps regulate the flow of liquid through a passage with an automatic valve.
Date: February 28, 1922
Creator: Dewey, Maurice J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pneumatic Disk Gin.

Description: Patent for an improved version of a pneumatic disk gin. It has been designed for "ginning fibrous material, such as seed cotton" (lines 13-14) and improves the separation of the cotton and the seeds with the use of its perforated disks.
Date: February 14, 1922
Creator: Garner, James C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Machine for Extracting Liquid from Pulpous Material Machine

Description: Patent for Extracting Liquid from Pulpous Material Machine that extracts oils and liquids from the remaining pulpous material from the process of grinding and cooking cotton. The main goal of this machine is to extract oil from cotton seed meal.
Date: February 10, 1920
Creator: Kinney, William L. & Cagle, Wiiliam E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Seed Cleaner

Description: Patent for cleaning seeds. This invention will improve seed cleaning and catch unwanted seeds.
Date: February 14, 1922
Creator: Garner, James C
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Combination Swing and Couch.

Description: Patent for a piece of swinging furniture for infants and small children which can be converted between a seat and a couch. This device is designed to be collapsed and folded for easy storage, as well as to be cheap and easy to manufacture. Illustrations included.
Date: February 10, 1920
Creator: McDevitt, Leslie I.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Wrench

Description: Patent for tools used for construction, plumbing, machinery, home renovations, and many more.
Date: February 27, 1923
Creator: Edwards, Charles R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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