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10 Matching Results
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Auto-Door Stop
Patent for a door stop that is cheap to produce and holds doors firmly.
Date:
November 3, 1908
Creator:
Hill, Ulysses H.
System:
The Portal to Texas History
Automatic Air Device for Gas Engines.
Patent for a removable automatic air device for delivering air to gas engines in proportion to the speed of the engine.
Date:
April 3, 1917
Creator:
Rivers, Charles A.
System:
The Portal to Texas History
Aparatus for Cleaning Lechuguilla, Henequen, and Analogous Fibrous Plants.
Patent for an improved apparatus for scraping lechugilla, henequen, and analogous fibrous plants. This apparatus scrapes the stalks of the plants mechanically and separates the pulp from the fiber of the plant so that the fiber will be cleaned and ready for use.
Date:
September 3, 1918
Creator:
Aguilar, Alfonso
System:
The Portal to Texas History
Athletic Shoe
Patent for improvements to athletic shoes for men, women, and children that improve the comfort of the shoe, support the anatomy of the foot, and prevent “falling arches and other foot ailments” (p. 1, lines 22-23).
Date:
December 3, 1918
Creator:
Rokahr, Charles
System:
The Portal to Texas History
Locking Device for Motor-Vehicles.
Patent for motor vehicle locking device to prevent theft or unauthorized use of motor vehicle. Suited for motor vehicles with the "throttle and spark levers below the steering wheel" (lines 18-19).
Date:
May 3, 1921
Creator:
Harris, Robert E.
System:
The Portal to Texas History
Ink Feeder for Pens.
Patent for a wire attachment to be added to the hollow of a writing pen. This attachment would enable more ink to be drawn into the interior of the pen, therefore allowing more words to be written from a single dip into an ink well.
Date:
August 3, 1915
Creator:
Hine, Frank B.
System:
The Portal to Texas History
Means for Opening or Closing Elevator-Doors.
Patent for a device which is mounted upon the traveling car and automatically opens and closes elevator doors. Includes instructions and illustrations.
Date:
August 3, 1897
Creator:
Bell, Chester L.
System:
The Portal to Texas History
Upward-Current Separating Process and Device.
Patent for upward-current separation processes and devices to allow for working with changes in conditions and proportions with ease.
Date:
July 3, 1917
Creator:
Allen, Charles
System:
The Portal to Texas History
Fuel Economizer
Patent for a fuel economizer. Illustration included.
Date:
May 3, 1910
Creator:
Phillips, Edwin R.
System:
The Portal to Texas History
Economy Air-Brake Apparatus
Patent for improvements to railway air-brake apparatuses, including specifications for such improvements.
Date:
August 3, 1915
Creator:
Canion, William G.
System:
The Portal to Texas History