AUTOMOBILE-TOOL. (open access)

AUTOMOBILE-TOOL.

Patent for an automobile tool for the Ford make of automobiles that "will hold the springs away from the bands and allow the bands to be removed and replaced or adjusted, when necessary" (lines 29-32) including instructions and illustrations.
Date: May 4, 1920
Creator: ROBERGE, JAMES Z.
System: The Portal to Texas History
Cotton-Cultivator. (open access)

Cotton-Cultivator.

Patent for an improved cultivator used for tillage when the plows are not in the ground. The cultivator can also lighten the heaviness felt by the operator while the plow is being used.
Date: May 17, 1921
Creator: Barnett, James Samuel
System: The Portal to Texas History
Churn. (open access)

Churn.

Patent for a churning receptacle for improvement in ease of operation, efficiency, and sanitation.
Date: May 18, 1920
Creator: Thompson, Robert A. & Morris, Lute P.
System: The Portal to Texas History
Holder for Dental X-Ray Films. (open access)

Holder for Dental X-Ray Films.

Patent for dental X-Ray holders that securely hold the film in place and categorize the X-Rays into series that comprise views of the whole mouth.
Date: May 17, 1921
Creator: Martin, James Madison
System: The Portal to Texas History
Lock for Automobiles (open access)

Lock for Automobiles

Patent for a new inexpensive, secure, and convenient to use lock for automobiles to be secured against theft, or use, while the lock is attached.
Date: May 3, 1921
Creator: Godbey, Walter H., Jr.
System: The Portal to Texas History
Book-Support and Writing-Table. (open access)

Book-Support and Writing-Table.

Patent for book support and writing table that adjusts to the item being used by the person. The tray is able to hold the item either a book or writing materials while adjusting to the user's needs. The book support and writing table can be folded to occupy little space.
Date: May 10, 1921
Creator: Taylor, Henry S.
System: The Portal to Texas History
Traffic Signal. (open access)

Traffic Signal.

Patent for an illuminated turn signal attached to the frame of a car. The signal is shaped like a hand and can be raised or lowered by a lever behind the steering wheel.
Date: May 9, 1922
Creator: Jones, Theodoric
System: The Portal to Texas History
Process of Producing Tire-Patch Material. (open access)

Process of Producing Tire-Patch Material.

Patent for an improved tire patch material combination and production process, which results in less water absorption and better adhesion to the tire.
Date: May 11, 1920
Creator: Duffy, Clarence O.
System: The Portal to Texas History
Measuring Device (open access)

Measuring Device

Patent for improvements to the measuring device used to ascertain the depth of a well.
Date: May 23, 1922
Creator: Bevel, Jack H.
System: The Portal to Texas History
Oil-Stove (open access)

Oil-Stove

Patent for improvements in oil burner stoves.Pertains more to oil stoves with movable burners so that the flame intensity can be adjusted or extinguished.
Date: May 10, 1921
Creator: Cook, Thomas Edward
System: The Portal to Texas History
Prepay Time-Controlled-Service Apparatus. (open access)

Prepay Time-Controlled-Service Apparatus.

Patent for an improvement in prepay time controlled service apparatus that uses the solenoid and armature as a stopping means for the time mechanism.
Date: May 11, 1920
Creator: Thompson, William H. & Thompson, J. D.
System: The Portal to Texas History
Emblem Structure. (open access)

Emblem Structure.

Patent for an improvement in emblem structures by mounting the parts of an emblem on a rigid mounting plate.
Date: May 18, 1920
Creator: Seastrunk, Thomas P.
System: The Portal to Texas History
Removable Pass-Book. (open access)

Removable Pass-Book.

Patent for a book with a removable cover that lies flat when open and fits within a pocket. Particularly suited for bank books, also known as passbooks.
Date: May 3, 1921
Creator: Exline, Marcus P.
System: The Portal to Texas History
Pump for Hydraulic Presses (open access)

Pump for Hydraulic Presses

Patent for a hydraulic pump that drives at a uniform speed as the pressure of the press increases, and connects the pistons with two pairs of cylinders moving in opposite cycles.
Date: May 10, 1921
Creator: Henry, Nelson B.
System: The Portal to Texas History
Power-Transmission Mechanism (open access)

Power-Transmission Mechanism

Patent for a power transmission with improvements to mechanisms related to frame adjustment, lubrication, motion transmission, and speed gearing, among others.
Date: May 2, 1922
Creator: Mays, James L.
System: The Portal to Texas History
Overalls. (open access)

Overalls.

Patent for a type of overalls where the jumper is elevated from the seat. The jumper is elevated from the jumper to prevent rain and other substances from saturating the seat. The jumper can also be removed from the seat by unfastening a concealed button hole band.
Date: May 25, 1920
Creator: Godchaux, Herbert
System: The Portal to Texas History
Roofing-Tile. (open access)

Roofing-Tile.

Patent for an improved plastic roofing tile with sealing, locking, pseudo-dove tail joints.
Date: May 4, 1920
Creator: Martin, John M.
System: The Portal to Texas History
Tractor. (open access)

Tractor.

Patent for a tractor in which the placement of the power source reduces dead weight and provides a low center of gravity, thereby increasing stability.
Date: May 24, 1921
Creator: Martin, John J.
System: The Portal to Texas History
Plastic Base for Poles. (open access)

Plastic Base for Poles.

Patent for a plastic base for poles which aims to lengthen the life of the average pole and enable the use of poles of shorter lengths.
Date: May 17, 1921
Creator: Hoyle, Millard F.
System: The Portal to Texas History