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Grapple. (open access)

Grapple.

Patent for improving grapples for regaining tools, particularly those that can be hidden and submerged.
Date: April 26, 1921
Creator: James. C. Ginter.
System: The Portal to Texas History
Hair-Clipper. (open access)

Hair-Clipper.

Patent for "certain new and useful Improvements" (line 6) in the Hair Clipper, concerning the introduction of more efficient "double-acting clippers" (line 12), including illustrations.
Date: April 26, 1921
Creator: Jones, Sidney P. & Wallace, David P.
System: The Portal to Texas History
Liquid Dispensing Apparatus (open access)

Liquid Dispensing Apparatus

Patent for dispensing liquid, such as gasoline, to automobile owners without an assistant. The apparatus should not become inoperable after a short period of time, and could be called a self-selling gasoline station.
Date: April 26, 1921
Creator: Miller, Emil B.
System: The Portal to Texas History
Magneto-Contact. (open access)

Magneto-Contact.

Patent for magneto contacts, designed for easy removal, cleaning, and replacement, without short circuits, featuring novel construction features and parts arrangements.
Date: April 26, 1921
Creator: Rigsby, Virgil.
System: The Portal to Texas History
Mechanism for Removing Useful Fiber From Seeds. (open access)

Mechanism for Removing Useful Fiber From Seeds.

Patent for Mechanism for Removing Useful Fiber From Seeds, by actions of rotating instrument, where the released fibers collected.
Date: August 9, 1919
Creator: Vardell, Arthur A.
System: The Portal to Texas History
Oil-Burner. (open access)

Oil-Burner.

Patent for oil burner adapted for using heavy oil (with wide flat flame) for distribution (wide flat flame with adjustable burner tip).
Date: April 26, 1921
Creator: Chadbourne, Vaughn, R.
System: The Portal to Texas History
Pipe-Coating Machine. (open access)

Pipe-Coating Machine.

Patent for a pipe coating machine which coats the pipes used for oil and gas pipe lines with a safety material like tar.
Date: April 26, 1921
Creator: Taber, Rock G.
System: The Portal to Texas History
Process of and Apparatus for Progressive Electrostatic Separation of Comminuted Material (open access)

Process of and Apparatus for Progressive Electrostatic Separation of Comminuted Material

Patent for a new process and equipment that improves upon prior work to separate comminuted materials. This patent explores the new process which "provides means for moving the electro-static waves or charges across the line of normal movement of the material upon a support of between two opposing stationary electrodes by so directing and controlling the electric charges, that each bar electrode is charged in succession across the deck and at an angle to the movement of such deck, whereby the difficulties in separating certain classes of comminuted material with moving electrodes are overcome" (lines 32-42).
Date: April 26, 1921
Creator: Sutton, Henry M.; Steele, Walter L. & Steele, Edwin G.
System: The Portal to Texas History
Railroad-Tie. (open access)

Railroad-Tie.

Patent for railroad ties and especially for a fie made from a log of wood.
Date: April 26, 1921
Creator: Bryant, Joseph D.
System: The Portal to Texas History
Single-Trigger Mechanism for Double-Barrel Guns. (open access)

Single-Trigger Mechanism for Double-Barrel Guns.

Patent for a new single-trigger mechanism for double-barrel guns in which both barrels fire successively and premature discharge is prevented, including illustrations.
Date: April 26, 1921
Creator: Lindsay, Charles W.
System: The Portal to Texas History
Tire-Tool. (open access)

Tire-Tool.

Patent for a tool designed for mounting pneumatic tires on wheel rims.
Date: April 26, 1921
Creator: Boone, Daniel M.
System: The Portal to Texas History
Tractor (open access)

Tractor

Patent for improvements in tractors for farm and road work. Improvements include enclosing all working parts within a protecting housing, mounting the motor for rotation, balance the weight, provide a wheel carriage to adjust the width and height, and to provide shifting gears.
Date: April 26, 1921
Creator: Ingram, Joseph D.
System: The Portal to Texas History
Typewriter-Desk. (open access)

Typewriter-Desk.

Patent for typewriter desk which has a compartment with a moveable platform. The platform supports a typewriter, and is "capable of being raised and lowered within the desk so as to position the typewriter for use or non-use as desired". The compartment has a lid, which when in closed position, provides an even writing or resting surface.
Date: April 26, 1921
Creator: Beard, Margurite E.
System: The Portal to Texas History
Necktie-Holder (open access)

Necktie-Holder

Patent for improvements to necktie-holders, particularly to prevent the neck-tie from sliding down toward the lower portion of the collar.
Date: April 21, 1921
Creator: Potter, Arthur C.
System: The Portal to Texas History
Concrete Building Mold. (open access)

Concrete Building Mold.

Patent for Concrete Building Mold that is composed to be able to be detachable and reversible.
Date: June 14, 1920
Creator: Rossiter, Jay A
System: The Portal to Texas History
Filtering Material. (open access)

Filtering Material.

Patent for "improved filtering stuff composition" (lines 8-9), containing vegetable ashes and an insoluble binding agent for the purpose of purifying liquids.
Date: April 19, 1921
Creator: Müller, Enrique
System: The Portal to Texas History
Grapple for Oil-Wells and the Like. (open access)

Grapple for Oil-Wells and the Like.

Patent for an improved grapple device that can help recover rigging parts from oil wells, including illustrations.
Date: April 19, 1921
Creator: Reed, Clarence E.
System: The Portal to Texas History
Ice-Carrier. (open access)

Ice-Carrier.

Patent for an adjustable ice carrier which can be attached to and removed from the running board of an automobile, including illustrations.
Date: April 19, 1921
Creator: Cronin, John J.
System: The Portal to Texas History
Oil Burner. (open access)

Oil Burner.

Patent for oil burner improvements, including economic and easily handle to control the pressure to control the oil and steam within the burner head.
Date: February 9, 1920
Creator: Obenshain, Kyle Derias
System: The Portal to Texas History
Process of Distilling Hydrocarbons (open access)

Process of Distilling Hydrocarbons

Patent for distilling hydrocarbons from crude petroleum oil.
Date: April 19, 1921
Creator: Averill, Willard C., Jr.
System: The Portal to Texas History
Process of Forming Tubes (open access)

Process of Forming Tubes

Patent for the process of making tubes, especially tubes for producing, fitting, and/or refitting "eye-glasses, spectacles, &c." (lines 11-12).
Date: April 19, 1921
Creator: Rees, Herbert C.
System: The Portal to Texas History
Pump-Actuating Mechanism. (open access)

Pump-Actuating Mechanism.

Patent for improving measuring pumps "by providing a pump actuating means so constructed that a continuous movement of the crank in one direction will cause a reciprocation of the piston in both directions" (lines 29-33), with illustrations.
Date: April 19, 1921
Creator: Dean, Robert A.
System: The Portal to Texas History
Reagent for Liquid-Battery Cells. (open access)

Reagent for Liquid-Battery Cells.

Patent for a method of producing a "cheap and efficient substitute for copper sulfate for use in battery cells" (lines 14-16).
Date: April 19, 1921
Creator: Humphrey, David L. & Pittman, Carl L.
System: The Portal to Texas History
Reamer. (open access)

Reamer.

Patent for rotary reamers for progressively enlarging holes in pilot drills, particularly roller disk type reamers used in oil, water, or mining applications.
Date: April 19, 1921
Creator: Humason, Granville A.
System: The Portal to Texas History