Resource Type
Partner
UNT Libraries Government Documents Department
19,458
UNT College of Arts and Sciences
56
UNT College of Engineering
19
Private Collection of J. K. Johnson
4
Grayson College Foundation
1
Moody Medical Library, UT
1
Private Collection of Mike Cochran
1
University of Dallas
1
UNT Libraries Special Collections
1
UNT College of Information
1
Collection
Texas Patents
18,570
Office of Scientific & Technical Information Technical Reports
887
UNT Scholarly Works
76
Rescuing Texas History, 2019
5
The Civil War and its Aftermath: Diverse Perspectives
1
Rescuing Texas History, 2017
1
Texas Cultures Online
1
Technical Report Archive and Image Library
1
TRAIL Microcard Collection
1
T. V. Munson Collection
1
States
Decade
Month
Electric-Motor Drive.
Patent for an electric-motor drive that can be used specifically with a cotton tramper, including instructions and illustrations.. This invention serves multiples methods of improvement compared to current electric-motor drives, and will make the processes its involved in more efficient, while being inexpensive to construct.
Date:
July 31, 1917
Creator:
Whitt, Joseph E.
System:
The Portal to Texas History
Electric Insact Trap.
Patent for an electric insect trap that highly efficient trap for electrocuting house flies and similar insects, include illustrations.
Date:
January 20, 1914
Creator:
Craig, Samuel A.
System:
The Portal to Texas History
Electric-Heated Steering-Wheel.
Patent for a steering wheel with an electrical heating unit for an automobile.
Date:
December 30, 1913
Creator:
Smith, Reuben S.
System:
The Portal to Texas History
Elevator
Patent for a new and improved elevator that has “a locking device for securing the jaws of the elevator around the pipe to be lifted” (lines 11-13), including illustrations.
Date:
March 7, 1916
Creator:
Simmons, Wise F. & Levy, Christin W.
System:
The Portal to Texas History
Feeding Mechanism For Printing Press
Patent for "an improved mechanism whereby the paper or other material is automatically fed to the press in web or continuous form and automatically cut off in the desired lengths as it passes from the feeding mechanism" (lines 23-26).
Date:
June 2, 1914
Creator:
Prescott, Sitwell
System:
The Portal to Texas History
Electric Car-Brake.
Patent for a new and improved electric car-brake. This design "consists in a car-brake formed of a pinion attached to the car axle, the pinion taking in a ratchet-wheel provided with a projecting pin, that enters into the slots of a wheel provided with a sleeve, upon which the brake chain is wound, which sleeve can be moved on the axle by means of a lever that is actuated by a rod passing into a helix connected with a battery to the locomotive" (lines 11-19).
Date:
February 24, 1880
Creator:
Conover, Philip Vorus
System:
The Portal to Texas History
Electric Car Brake.
Patent for a new and improved electric car brake. This design "consists in a combination . . . of a friction-wheel mounted on a laterally-adjustable vertical shaft, provided at its upper end with a beveled cog-wheel, engaging with a beveled cog-wheel on a horizontal shaft, journaled in the under side of the car-floor, on which horizontal shaft is loosely mounted a worm, which engages with a worm-wheel mounted on [a] shaft . . . when this worm is locked on the shaft . . . the brake-chain will be wound on the shaft of the worm-wheel, and the brakes will be applied" (lines 10-23).
Date:
September 26, 1882
Creator:
Conover, Philip Vorus
System:
The Portal to Texas History
Feeding Chute for Stoves.
Patent for a new and improved feeding chute for stoves. This design "is to provide the chute with a pivoted latch or other like device that will securely hold the door closed, the device operating automatically in locking the door closed. A further object of the invention is to provide a pivoted chute with a swinging door, so that the two will act conjointly with each other" (lines 36-43).
Date:
February 24, 1885
Creator:
Mayfield, William Dudley
System:
The Portal to Texas History
Electric Motor.
Patent for a new and improved electric motor. This design "consists, essentially, in such combination of an automatic circuit-breaker with a bar of soft iron secured centrally on a shaft journaled in bearings secured to the motor frame and rotating within a coil or helix that the rotation of said bar will continuously make and break the circuit, and that the action of the circuit-breaker will cause the continuous rotation of the bar" (lines 17-26).
Date:
June 22, 1886
Creator:
Emley, James E.
System:
The Portal to Texas History
Electric Belt
Patent for improvements in electric belts.
Date:
July 5, 1887
Creator:
Williams, Robert E.
System:
The Portal to Texas History
Electric Call or Signal Apparatus.
Patent for a new and improved electric call or signal apparatus. This design consists in "a telegraph or telephone circuit, the combination, with a polarized electro-magnet and a short circuit around the same, which is closed when the magnet is transversed by a constant current of a given polarity, of a battery having the proper pole to line, a switch for connecting the line and battery circuits, and a telephone in the battery circuit, whereby the telegraph or telephone line may be tested" (lines 41-49).
Date:
October 18, 1887
Creator:
Foster, George W.
System:
The Portal to Texas History
Feeder for Treadle Printing-Presses
Patent for improvements in treadle-press feeders "in which the feeder has to lay the paper on the platen and remove it after being printed" (lines 10-12).
Date:
July 2, 1889
Creator:
Orser, Levi
System:
The Portal to Texas History
Electric Belt.
Patent for an electric belt producing "an exceedingly gentle and moderate [current], so as to insure the precise remedial results desired" (lines 91-93) including illustrations.
Date:
August 27, 1889
Creator:
Everett, Charles
System:
The Portal to Texas History
Elevated Suspension-Railway
Patent for improvements in construction and engineering of elevated railways
Date:
November 19, 1889
Creator:
Johnston, Lysander
System:
The Portal to Texas History
Elevator.
Patent for elevator supporting a locking mechanism to restrict movement in case of a broken cable preventing the elevator car "from dropping to the bottom of the shaft" (lines 16-17).
Date:
July 18, 1916
Creator:
Hathhorn, Robert A.
System:
The Portal to Texas History
Electric-Line-Apparatus Protector
Patent for electric-line-apparatus protector used to protect telephone and other electrical circuits from damaged caused by electricity. This is a simple and efficient device.
Date:
July 25, 1916
Creator:
Higgins, Peter K. & Parker, Frederick R.
System:
The Portal to Texas History
Drop-Pilot or Cow-Catcher.
Patent for an improvement in drop-pilots or cow-catchers for street or steam-railways to allow the cow-catcher to stay higher above the track and be dropped in an emergency to catch large objects and prevent them from being trapped under the wheels. The improvement also contains a device for raising and lowering the cow-catcher, a mechanism for operating the brakes and whistle interdependently, and a single lever for the operator to use to control the various mechanisms.
Date:
April 11, 1916
Creator:
Maxfield, Nelson
System:
The Portal to Texas History
Feeding Device for Hay-Presses.
Patent for "certain new and useful Improvements in Feeding Devices for Hay-Presses" (lines 5-6), including specifications and illustrations.
Date:
December 14, 1915
Creator:
Sandy, Sam S.
System:
The Portal to Texas History
Electric Prod-Pole.
Patent for a simple, strong, and durable prod-pole which is also cheap and effective.
Date:
August 1, 1916
Creator:
Martin, Budolph E.
System:
The Portal to Texas History
Electric Motor.
Patent for an electric motor that operates "with equal efficiency on either direct or alternating current" (lines 10-11).
Date:
May 4, 1915
Creator:
Adams, Homer E.
System:
The Portal to Texas History
Elevated Railway
Patent for an elevated railway track system including motorized elevators in each tower/station/terminal to access the railcar platform.
Date:
August 10, 1915
Creator:
Hinsen, William
System:
The Portal to Texas History
Dry Closet.
Patent for a new design that improves "construction, utility, and efficiency of dry closets"(lines 10-11) that would also allow the use of an attachment specifically for dry closet seats. Includes design for mesh cloth to capture waste.
Date:
April 24, 1917
Creator:
Mershon, John H.
System:
The Portal to Texas History
Electric-Lamp Socket.
Patent for an improved electric lamp socket "having a pair of switches which are alternately closed and opened, and having means for the attachment thereto of three conductors, whereby it is possible to light the lamp by means of a main switch" (lines 11-15), including illustrations.
Date:
April 4, 1916
Creator:
Elliott, William Martin
System:
The Portal to Texas History
Dry-Cleaning Machine.
Patent for a dry cleaning machine that cleans using gasoline. The invention reduces the amount of gasoline used; keeps the gasoline clean while in use; provides easy placement and access of garments in the drum while in motion; improves the construction of the drum and its rubbing action on the garments; and supplies moisture to the machine to prevent the gasoline from igniting.
Date:
June 16, 1914
Creator:
White, Edward Young
System:
The Portal to Texas History