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Blackboard.
Patent for a rotating blackboard that can be covered when not in use, as well as adjusted to different heights and locked into place so the writer can utilize every available space of the blackboard. The inventor designed the blackboard "for use in schools and brokerage offices."
Date:
March 8, 1921
Creator:
Grothaus, Julia
System:
The Portal to Texas History
Automobile-Tilting Machine.
Patent for new and improved automobile jack that facilitates secured access to repair the underside of the automobile, including illustrations. Jack consists of a large frame, part of which is curved for tilting, water adjustable weight counterbalance, and wheel locking channels.
Date:
March 23, 1920
Creator:
Weimar, Fritz
System:
The Portal to Texas History
Air-Cushion Tire.
Patent for improvement to the air-cushion tire in terms of resilience, and an improved structure.
Date:
March 16, 1920
Creator:
Williams, Harry S.
System:
The Portal to Texas History
Canopy-Support
Patent for canopy support for the bed where the user can attach mosquito netting. The canopy support can be removed and folded when not in use, and is designed to offer simple and efficient support.
Date:
March 26, 1918
Creator:
Carroll, Houston M.
System:
The Portal to Texas History
Bending-Machine and Method of Bending.
Patent for a machine to bend metal into various shapes for the purpose of construction and reinforcement.
Date:
March 29, 1921
Creator:
Holmgreen, Julius H.
System:
The Portal to Texas History
Vehicle-Wheel.
Patent for improving a tire by providing new form of tread-holding device and using a resilient metal band encircling the tire.
Date:
March 11, 1919
Creator:
Allan, William N.
System:
The Portal to Texas History
Ventilator
Patent for low cost, improved ventilators for Pullman and passenger cars and buildings.
Date:
March 26, 1918
Creator:
Hedges, Robert S.
System:
The Portal to Texas History
Process of Forming Individual Foot-Forms and Fitting Shoes Thereon.
Patent for the improvement of the process of forming individual foot forms or replicas of a person's specific foot. This alleviates a person having to go through the painful process of breaking in new shoes. The foot forms can then either be kept by the individual or by the shoe dealer for making future foot wear.
Date:
March 22, 1921
Creator:
Butler, James B.
System:
The Portal to Texas History
Mixer
Patent for an improved mixer for "use in connection with internal combustion engines" (lines 9-10). The invention is designed to simplify and increase the engine's efficiency while also making construction more affordable.
Date:
March 26, 1918
Creator:
Warren, John W.
System:
The Portal to Texas History
Moving-Picture Machine.
Patent for an improved machine to play films (moving-pictures), synchronizing both sound and picture in a single machine. Division of another patent by the same inventor (Serial No. 765,959) for a sound record film, and is intended to be used in conjunction with said patent.
Date:
March 26, 1918
Creator:
Craig, Richard M.
System:
The Portal to Texas History
Tire-Chain
Patent for improved tire chains which can withstand greater strain.
Date:
March 23, 1920
Creator:
Fields, James A. & Witte, Jessie J.
System:
The Portal to Texas History
Electrical Testing Device.
Patent for "improvements in electrical testing devices, and more specifically to an improved fluxmeter for testing the strength of magnets" (lines 13-15).
Date:
March 30, 1920
Creator:
Bierbower, Richard C.
System:
The Portal to Texas History
Electrical Testing Device.
Patent for an electrical device with an improved circuit arrangement in combination with various devices all assembled in compact arrangement on a board which enables to easily locate faults in various electrical apparatus or parts. This electric device is capable of use by anyone who isn't skilled as an electrician.
Date:
March 30, 1920
Creator:
Bierbower, Richard C.
System:
The Portal to Texas History
Internal-Combustion Motor.
Patent for an internal combustion engine designed for better lubrication and simplicity of repair.
Date:
March 22, 1921
Creator:
Sanford, Harold M.
System:
The Portal to Texas History
Pneumatic-Tire Protector
Patent for an improved pneumatic tire protector. This is a liner "interposed between the inner tube and tire casing to prevent puncture of the inner tube" (p.1 lines 6-8)
Date:
March 19, 1918
Creator:
Haas, Edward
System:
The Portal to Texas History
Phonographic Attachment for Moving-Picture Machines
Patent for an invention that is "the provision of mechanism whereby a sound record may be made or reproduced synchronously with the taking or reproduction of moving pictures" (Paragraph 100). In addition, the invention enables sound and picture to be recorded on the same machine, so that they sound and the picture match.
Date:
March 26, 1918
Creator:
Craig, Richard M.
System:
The Portal to Texas History
Furniture
Patent for easy assembly and disassembly of cabinet furniture.
Date:
March 11, 1919
Creator:
Giordano, Anthony
System:
The Portal to Texas History
Cushion Tire
Patent for Cushion Tires. Each tire will have multiple chambers within it, so if one is punctured the remainder of the tire will continue to function and not deflate.
Date:
March 16, 1920
Creator:
Williams, Henry S.
System:
The Portal to Texas History
Roller-Distributer.
Patent for a new and useful roller-distributer of the sort used on a light and relatively inexpensive automobile of widely known construction.
Date:
March 22, 1921
Creator:
Lopez, Jesus M.
System:
The Portal to Texas History
Shock-Absorber.
Patent for an improved design of shock absorbers that gives vehicles a smoother ride.
Date:
March 8, 1921
Creator:
Swindowsky, Walter
System:
The Portal to Texas History
Air-Compressing Apparatus.
Patent for a new air compressing apparatus which employs two kinds of tanks called high pressure containers and low pressure containers charged by means of an air compressing engine.
Date:
March 16, 1915
Creator:
Gebhardt, William Charles
System:
The Portal to Texas History
Boot-Tree Former.
Patent for a boot-tree former, which is used in boot manufacturing to form and stretch the shape of a boot.
Date:
March 14, 1914
Creator:
Lucchese, Michele
System:
The Portal to Texas History
Telltale Switch
Patent for switch that indicates when a vacuum fails. Used for systems in "which it is desired to keep a ... uniform vacuum such as in fruit dryers, creosoting plants, surgace and jet condensing for steam plants and the like" (lines 21-25).
Date:
March 23, 1915
Creator:
Howland, John
System:
The Portal to Texas History
Animal-Trap.
Patent for a live animal trap that uses a trigger and allows for live bait. Wire fabric is used to prevent animals from digging and escaping.
Date:
March 3, 1914
Creator:
Herring, Henry H.
System:
The Portal to Texas History