UNT Libraries Government Documents Department - 1,288 Matching Results

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Testing Device.

Description: Patent for a testing device that can be used to test the condition of the pistons in an internal combustion motor. The device can also be used as an "air pump, or grease or oil gun." (lines 30-31).
Date: April 13, 1920
Creator: Harpst, Frederick E.

Gate-Latch.

Description: Patent for a gate-latch that latches closed with extension of the gate, but allows the gate to open by elevating said latch.
Date: November 23, 1920
Creator: Bramblett, Benjamin F.

Stove.

Description: Patent for a stove with a combustion chamber that utilizes oil as fuel through an oil burner in said chamber, illustration included.
Date: February 5, 1918
Creator: Cook, Charles F.

Stove.

Description: Patent for a stove in which kerosene and other similar oils may be used as fuel. The stove is also designed to give the maximum amount of heat radiating surface by retaining the current of heated air in the flute chamber.
Date: March 18, 1919
Creator: White, Richard E.

Gasolene-Measuring Device.

Description: Patent for a device which allows for gasoline to be measured while under constant flow.
Date: September 14, 1920
Creator: McKallip, John C.

Hat-Blocker

Description: Patent for "new and useful improvements hat-blocker (lines 8-9)."
Date: April 30, 1918
Creator: Milligan, Clifford V.

Hair-Clipper

Description: Patent for a hair-clipper designed for barbers' and household use, designed to be used without discomfort for the patient.
Date: April 30, 1918
Creator: Sammons, Loney H.

Hoisting Drum

Description: Patent for improvements to hoisting drums for use in drilling oil, gas, and water wells, with the object being "to employ a plurality of hoisting drums upon the same shaft so that the cable may be wound partly on one drum and partly on another" (lines 73-76) such that the danger of cable cutting is decreased and the speed of operation is increased, including illustrations.
Date: May 2, 1922
Creator: Suman, John R. & Gamble, Adrian R.

Gate-Valve Lock.

Description: Patent for new and useful improvements in gate valve lock. This invention is to improve locks for gate valves and other various valves with rotatable stems.
Date: September 28, 1920
Creator: Madrin, Leonard B.

Horizontal-Drilling Machine

Description: Patent for a horizontally boring drill for use in trench warfare, including illustrations.
Date: November 26, 1918
Creator: Hughes, Howard R.

Gin or Delinting-Gin

Description: Patent for a cotton gin with a removable saw cylinder, which allows the saw blades to be replaced or sharpened without dismantling the whole mechanism.
Date: unknown
Creator: Nesmith, Warren Hines

Gin

Description: Patent for a gin that will strip fiber from the seed, "motes", and other "foreign bodies" (lines 27-28) without damaging the fiber.
Date: January 13, 1920
Creator: Tischer, Edward R.

Drilling Apparatus

Description: Patent for a drilling apparatus for wells. This drill is designed to be applied to a rotary and used with a pipe tong to screw and unscrew pipe joints.
Date: October 25, 1921
Creator: Reeves, George G.

Drilling Apparatus

Description: Patent for a drilling apparatus able to simultaneously bore into objects and rearm itself.
Date: April 29, 1919
Creator: Layne, Mahlon E.

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.

Drill-Head

Description: Patent for drill head improvements by inventor Clarence E. Reed.
Date: September 24, 1918
Creator: Reed, Clarence E.

Drill-Bit

Description: Patent for an improved kind of drill bit that is more durable against rock. The bit's cutting rollers have a frusto-conical shape, and are also detachable.
Date: January 24, 1919
Creator: Humason, Granville A.

Drill-Cutter.

Description: Patent for new and improved drill cutter for rotary boring drills including exact description and illustrations.
Date: November 4, 1919
Creator: Godbold, Louis A. & Fletcher, Harold W.

Drill-Bit

Description: Patent for Drill-Bit that is especially designed for purpose of drilling through rock, or other hard formations and is also adapted for use in drilling through softer formation, such as shell.
Date: June 10, 1919
Creator: Culmore, March J. A.

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.

Sample-Taking Device.

Description: Patent for improvements in Sample-Taking Devices, specially for drilling oil wells with the purpose of taking samples, which can be easily removed from the well without with-drawing the bit or drill stem.
Date: June 8, 1920
Creator: Huston, Sidney H.

Sample Taking Device

Description: Patent for an oil sample-taking device.
Date: February 25, 1919
Creator: Dodds, Redus D.

Sample Taking Device

Description: Patent for a sample taking device used in the process of drilling wells using water and a multi-armed unit that rotates to drill the stem into the ground.
Date: January 4, 1921
Creator: Dodds, Redus D.
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