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Adjustable Friction-Grab for Fishing-Tools.
Patent for friction grabs for fishing tools in well drilling operations that can be "easily adjusted for different sized holes or wells and which will be automatically adjusted and the grabs automatically closed on the object to be removed" (lines 14-17).
Date:
May 24, 1921
Creator:
Dickson, Lawrence E.
Object Type:
Patent
System:
The Portal to Texas History
Amusement Device.
Patent for a Ferris wheel in which the passenger cars rotate horizontally in addition to rotating vertically with the direction of the main wheel.
Date:
May 24, 1921
Creator:
Lindamood, Roy S.
Object Type:
Patent
System:
The Portal to Texas History
Automatic Air and Gas Relief Valve for Oil-Distributing Systems.
Patent for an air and gas relief valve for oil piping systems that improves upon the need for pumps to get rid of the accumulation of air and gas before pumping oil, with illustrations.
Date:
May 24, 1921
Creator:
Mobley, Henry Grady
Object Type:
Patent
System:
The Portal to Texas History
Automatic lock.
Patent for a gate lock that automatically locks.
Date:
March 24, 1924
Creator:
Parker, Robert N.
Object Type:
Patent
System:
The Portal to Texas History
Automatic Trailing Device
Patent for an automatic trailing device. This device is made to "successfully follow the tracks of the front vehicle without the use of a driver on the vehicle in tow" (lines 14-17).
Date:
February 24, 1920
Creator:
Sloan, Charles Lee
Object Type:
Patent
System:
The Portal to Texas History
Boiler-Stand.
Patent for an improved boiler stand by creating space for air flow between the burner and the boiler to increase combustion.
Date:
February 24, 1920
Creator:
Fowles, Alfred T.
Object Type:
Patent
System:
The Portal to Texas History
Car-Rail Hose-Bridge.
Patent that provides a hose-bridge that is light in weight and simple in construction, that can be carried on the cars or stored at different points on the line convenient for use.
Date:
January 24, 1921
Creator:
Tyler, Charley P.
Object Type:
Patent
System:
The Portal to Texas History
Clamp
Patent for clamps used in framing and forming of concrete construction. The clamps are easily removed and reused eliminating the need for wooden framing used in the past.
Date:
February 24, 1920
Creator:
Ferguson, William D.
Object Type:
Patent
System:
The Portal to Texas History
Coating Apparatus and Mathod.
Patent for a new apparatus into which long objects such as pipes can be placed, dipped into coating material, and spun so that objects are coated evenly.
Date:
August 24, 1920
Creator:
Watrous, Edward L.
Object Type:
Patent
System:
The Portal to Texas History
Condenser for Cotton-Presses.
Patent for "Improvements in Condensers for Cotton-Presses," (lines 6-7) including illustrations. The invention is designed with cotton bale presses in mind, specifically the "condenser or bat forming device" (line 11).
Date:
May 24, 1921
Creator:
Taft, John A.
Object Type:
Patent
System:
The Portal to Texas History
Coupling.
Patent for a coupling to be used by military vehicles, unique in its "simplicity, rapidity in attachment and detachment, strength and durability" (lines 19-21).
Date:
May 24, 1921
Creator:
Speece, Russell. W.
Object Type:
Patent
System:
The Portal to Texas History
Crossing for Railway-Tracks.
Patent for incorporating durable gaps within railway-rails to improve performance, with illustrations.
Date:
February 24, 1920
Creator:
Thomas, Lester V.
Object Type:
Patent
System:
The Portal to Texas History
Dental-Broach Holder.
Patent for a dental broach holder that can be easily cleaned, and that includes certain structural elements that keep a dental broach more secure during use. The broach fastens on the outside of the holder, the mechanism of which "[prevents] loss of the broach in the patient's mouth during operation" (lines 92-94).
Date:
January 24, 1922
Creator:
Gilbert, James M.
Object Type:
Patent
System:
The Portal to Texas History
Drill Bit
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.
Object Type:
Patent
System:
The Portal to Texas History
Electric Battery
Patent for an electric battery. This battery is designed to be more efficient and run for a longer time, without adding water.
Date:
October 24, 1922
Creator:
Holmes, Frank M.
Object Type:
Patent
System:
The Portal to Texas History
The Gaseous Explosive Reaction: The Effect of Inert Gases
"Attention is called in this report to previous investigations of gaseous explosive reactions carried out under constant volume conditions, where the effect of inert gases on the thermodynamic equilibrium was determined. The advantage of constant pressure methods over those of constant volume as applied to studies of the gaseous explosive reaction is pointed out and the possibility of realizing for this purpose a constant pressure bomb mentioned" (p. 479).
Date:
June 24, 1927
Creator:
Stevens, F. W.
Object Type:
Report
System:
The UNT Digital Library
Gate-Operating Device
Patent for a gate opening device that consists of a hinge, cable, and spring that allows a gate to open after a slight push by a pedestrian or vehicle.
Date:
February 24, 1920
Creator:
Wilbanks, Andrew J.
Object Type:
Patent
System:
The Portal to Texas History
Hose Reel
Patent for a hose reel that makes water easily available to the people in a building that has caught fire and is more easily maneuverable.
Date:
August 24, 1920
Creator:
Hamner, Edward M.
Object Type:
Patent
System:
The Portal to Texas History
Hydraulic Swivel.
Patent for a hydraulic swivel which may be used for well drilling, has an inlet at the side, and is designed to be in few parts for reduced packaging.
Date:
May 24, 1921
Creator:
King, Walter E.
Object Type:
Patent
System:
The Portal to Texas History
Jar and Can Lifter
Patent for Jar and Can lifter designed to assist in transporting a can or jar. It is made from wire and acts as a removable handle.
Date:
January 24, 1920
Creator:
Hilley, Seaborn A.
Object Type:
Patent
System:
The Portal to Texas History
Metal-Coating Composition.
Patent for a metal coating composition to form a protective coating on metals and steel to prevent rust and corrosion.
Date:
May 24, 1921
Creator:
Ethridge, Thomas Jefferson
Object Type:
Patent
System:
The Portal to Texas History
Mold.
Patent for a new, improved Mold "specially designed for the formation of the rings of packing such as is used in stuffing boxes for packing metallic rods" (lines 11-14), illustrations included.
Date:
January 24, 1922
Creator:
Miller, Ose Z.
Object Type:
Patent
System:
The Portal to Texas History
Mousetrap
Patent for a mousetrap that is an improvement to the average mousetrap, but new in the sense that it can be made in various proportions or sizes for a variety of vermin.
Date:
January 24, 1922
Creator:
Spencer, Clarence E.
Object Type:
Patent
System:
The Portal to Texas History
Non-Skid Device
Patent for a device that affixes to automobile wheels to provide tire traction and prevent skidding.
Date:
May 24, 1921
Creator:
Williams, Harry S.
Object Type:
Patent
System:
The Portal to Texas History