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12 Matching Results
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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
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
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
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
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