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Center Rail for Key-Actions. (open access)

Center Rail for Key-Actions.

Patent for an easily adjustable, simple, and durable center rail for key actions in pianos which does not require chiseling holes.
Date: October 21, 1919
Creator: Swallow, Oscar L.
System: The Portal to Texas History
Tire-Casing. (open access)

Tire-Casing.

Patent for a new type of puncture-proof tire casing.
Date: August 31, 1920
Creator: Anderson, Arthur V. & Morgan, Alfred M.
System: The Portal to Texas History
Tire Casing Core (open access)

Tire Casing Core

Patent for a tire casing core designed to make the installation and removal of casings from tires easier to perform with a reduced risk of damaging either item.
Date: April 15, 1919
Creator: Hibbs, C. D.
System: The Portal to Texas History
Tag for Keys and Other Articles. (open access)

Tag for Keys and Other Articles.

Patent for a tag that can be attached to keys for hotel rooms and similar uses. The tag could include the room number associated with the key, the hotel address, and a space for inserting advertising cards.
Date: March 12, 1918
Creator: Hartman, William D.
System: The Portal to Texas History
Motor Limbering Stand (open access)

Motor Limbering Stand

Patent for a motor limbering stand. To provide an apparatus for starting and testing motors.
Date: February 19, 1918
Creator: Hill, James H.
System: The Portal to Texas History
Puncture-Proof Auto-Tire (open access)

Puncture-Proof Auto-Tire

Patent for puncture-proof auto tires aimed at reducing (or eliminating entirely) automotive tire punctures and blowouts. The design prioritizes the protection and strengthening of tire walls for these purposes alongside a simplicity in design which lends itself toward (comparatively) low manufacturing costs.
Date: June 14, 1921
Creator: Fenley, Robert H.
System: The Portal to Texas History
Plow (open access)

Plow

Patent for a modification of a plow that improves ease of use. Additionally the plow adds wings that allow plowing of soil at different angles.
Date: October 21, 1919
Creator: Richardson, William T.
System: The Portal to Texas History
Thimble. (open access)

Thimble.

Patent for an improved thimble that incorporates a thread-cutter tool.
Date: June 25, 1918
Creator: Colburn, Sophia
System: The Portal to Texas History
Hollow Building-Tile. (open access)

Hollow Building-Tile.

Patent for hollow building blocks or tile in a block form with a groove to easily insert a nailing strip which can be secured with nails or screws.
Date: July 15, 1919
Creator: Taylor, James T.
System: The Portal to Texas History
Hair-Wave Former. (open access)

Hair-Wave Former.

Patent for an improved hair-wave former device so "hair may be waved or coiled by a harmless method without heating the air and without rolling the hair with paper" (lines 12-15), including illustrations.
Date: February 28, 1922
Creator: Thompson, Mary E.
System: The Portal to Texas History
General-Delivery Post-Office Cabinet. (open access)

General-Delivery Post-Office Cabinet.

Patent for a postal mail cabinet in which the arrangement of the compartments can be adjusted and allow for consideration of both the surname and given name of the recipient.
Date: August 31, 1920
Creator: Conine, James B.
System: The Portal to Texas History
Gauge Cock. (open access)

Gauge Cock.

Patent for steam gauge or test cocks that provides a simple and economical gauge cock for steam boilers by which the steam can be readily tested and which is adapted to close the orifice automatically to provide a constructions which will not be disarranged in operation.
Date: October 17, 1922
Creator: Woodruff, Lovell H.
System: The Portal to Texas History
Fire Extinguisher for Oil-Tanks and the Like (open access)

Fire Extinguisher for Oil-Tanks and the Like

Patent for a fire extinguisher device designed specifically for fires burning in oil tanks, with the intent to lower the costs of production and installation of such devices.
Date: 1919
Creator: Cooper, Isaac N.
System: The Portal to Texas History
Piston Ring (open access)

Piston Ring

Patent for "new and useful improvements in Piston Rings (lines 5-6)."
Date: April 30, 1918
Creator: Byrant, Clarence R.
System: The Portal to Texas History
Rotary Engine. (open access)

Rotary Engine.

Patent for an improved rotary engine which overheats less, reduces the space between the piston and cylinder, and is easy to construct and operate.
Date: April 27, 1920
Creator: Jefferies, Charlie Q.
System: The Portal to Texas History
Screen-Hanger. (open access)

Screen-Hanger.

Patent for more accessible window screen hangers. The inventors claimed that these improved screen hangers eliminated the challenge of hanging window screens on the exterior of tall buildings. These screen hangers allowed customers to hang, adjust, and clean screens from the inside of buildings.
Date: December 9, 1919
Creator: Agee, Howard L. & Agee, Sidney A.
System: The Portal to Texas History
Screen Pickup-Roller. (open access)

Screen Pickup-Roller.

Patent for improvements for condensing things such as lint and hair and removing them from "the screen cylinder of the apparatus by a screen pickup roller." (lines 13-15)
Date: July 13, 1920
Creator: Martin, George W.
System: The Portal to Texas History
Swing (open access)

Swing

Patent for a new lawn swing design meant to be "a simple and inexpensive swing which will be strong and durable" (lines 10-12) and that will engage all muscles in its operation, including illustrations.
Date: July 2, 1918
Creator: Bretz, Don C.
System: The Portal to Texas History
Power Jack. (open access)

Power Jack.

Patent for Power-Jack.
Date: 19
Creator: Wright, George R.
System: The Portal to Texas History
Power-Jack. (open access)

Power-Jack.

Patent for improvements on the power-jack, which help bring liquids to the surface. Specifically designed "to provide a power mechanism for balancing the load or work at all points of the stroke." (lines 11-13), including illustrations.
Date: October 21, 1919
Creator: Dayton, William L.
System: The Portal to Texas History
Post Structure (open access)

Post Structure

Patent for improved base plate for wooden posts to protect the posts from damage and extend its usability.
Date: November 30, 1920
Creator: Dietz, Paul A.
System: The Portal to Texas History
Foldable Tent Bed (open access)

Foldable Tent Bed

Patent for a Combination Folding Tent Bed and Tent
Date: June 18, 1918
Creator: Marsh, Willard E.
System: The Portal to Texas History
Even-Balance Pump-Jack (open access)

Even-Balance Pump-Jack

Patent for "increasing the power of the pump jacks" (lines 10-11) for improved uniformity during the upstroke and the downstroke.
Date: February 4, 1919
Creator: Dayton, William L.
System: The Portal to Texas History
Fabric-Striping Machine (open access)

Fabric-Striping Machine

Patent for a fabric stripping machine used for stripping fabric from discarded tire casings, comprising of a shaft and a reel, a striping shaft, composed in such a way to aid in adjusting said stripping shaft.
Date: July 1, 1919
Creator: Hibbs, Cassell D.
System: The Portal to Texas History