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
Feeder for Sheets of Paper, &c.
Patent for improvements to sheet feeders "to take the sheet which is to be red from the bottom of the pile of sheets on a reciprocating platform which moves forward, when the sheet is seized by the suction-roller, with approximately the same speed as that of the periphery of the said roller" (lines 11-17).
Date:
January 14, 1890
Creator:
Clarke, George R.
System:
The Portal to Texas History
Earth-Augers.
Patent for a new and improved earth auger. This design calls for "a hinged door having its edge folded or bent to form an air-tube . . . [and] a pair of hemi-cylindrical doors having on one or both an air duct or ducts," as well as interchangeable bits with a shouldered and threaded shank and a nut combined and arranged in a novel way (paras. 12-15).
Date:
October 30, 1877
Creator:
Fields, Daniel G.
System:
The Portal to Texas History
Electric Battery
Patent for an electric battery. This battery is designed to be more efficient and run for a longer time, without adding water.
Date:
October 24, 1922
Creator:
Holmes, Frank M.
System:
The Portal to Texas History
Drum-Lining.
Patent for a cement pulverizer drum made of cast iron with a tongue and groove connection that is strong, durable, and easy to make.
Date:
December 11, 1917
Creator:
Johnson, Charles L.
System:
The Portal to Texas History
Electric Fly-Trap.
Patent for improvement to fly traps. The improved fly trap electrocutes flies and other flying insects as they enter the trap. In the trap, there is a lamp that attracts flying insects.
Date:
November 20, 1917
Creator:
Bass, William A.
System:
The Portal to Texas History
Electric Edge Heel And Shank Setter.
Patent for device setting heels and shanks for shoe manufacturing. It is an edged electric device with a rotary wheel.
Date:
January 11, 1921
Creator:
Lutes, William
System:
The Portal to Texas History
Feeding Apparatus for Baling-Presses
Patent for improvements to the devices that feed cotton into baling presses. The main intentions of the improvements are to ensure that cotton is fed to the press at regular intervals, and to provide a "feed paddle" which is operational when the press ram is raised.
Date:
1919
Creator:
Cameron, Theodore R.
System:
The Portal to Texas History
Electric Hairbrush
Patent for an improved electric hairbrush having an insulated electrical heating element and separately charged electrically conductive metallic bristles. The hairbrush is designed to straighten hair and/or to electrically treat a user's hair and scalp with a low-voltage current. A device in the handle allows the user to regulate the heating of the element.
Date:
November 28, 1922
Creator:
Harvey, Birdie
System:
The Portal to Texas History
Elevating-Truck.
Patent for new improvements for a portable elevating truck, used for handling and storing heavy material to stack on each other. (referred to as "decking") using an endless chain on an incline.
Date:
November 11, 1919
Creator:
Anderson, John L.
System:
The Portal to Texas History
Elevator.
Patent for a new and improved design of elevators "for the purpose of preventing accidents" (lines 26-27) by locking the entrance doors while the elevator is moving, including illustrations. It is designed to be used by passengers but can also be adapted to be used as a freight elevator.
Date:
November 23, 1920
Creator:
Williams, George M.
System:
The Portal to Texas History
Dry Closet.
Patent for improvements in dry closets with an illustration. The improvements patented are specific to separating "fecal matter and urine" (line 15).
Date:
July 15, 1919
Creator:
Moore, Joseph B.
System:
The Portal to Texas History
Electric Light Switch.
Patent for an improved electric switch that is used to energize electric lights for various purposes and for use in connection with a signaling system. This switch will permit the energization of any one of the lights separately or all lights simultaneously.
Date:
April 6, 1920
Creator:
Riggs, Fletcher S.
System:
The Portal to Texas History
Elevating Truck.
Patent for elevating truck equipped with a conveyor belt powered by an electric motor. The device is "easily moved about and placed in position by one or two men" (lines 29–30), but powerful enough to lift bales of cotton (or other objects) weighing up to 600 pounds, includes illustrations.
Date:
August 5, 1919
Creator:
Anderson, John L.
System:
The Portal to Texas History
Electric Fire and Burglar Alarm
Patent for new and useful improvements to fire and burglar alarms. The invention includes improvements so that frequent battery changes are not necessary.
Date:
February 5, 1918
Creator:
Bates, Lewis E. & Hanks, Vollie V.
System:
The Portal to Texas History
Drag-Sawing Machine.
Patent for improvements in "sawing-machines adapted for using both circular and reciprocating saws, and especially designed for general sawing in cabinet-makers’ and carpenters’ shops, its object being to provide for the proper guiding and support of the reciprocating saw and for the ready adjustment and firm maintenance of the articles to be sawed in proper position.” (Lines 9-16) Illustration is included.
Date:
August 3, 1880
Creator:
Gardner, Robert J.
System:
The Portal to Texas History
Drawer of Furniture, Store Fixture, &c.
Patent for a new and improved chest of drawers. This design "consists, first, in a drawer applied upon side cleats or ledges, grooved longitudinally with the movement of the drawer, and having balls placed in such grooves in such a manner that they are kept separated and are free to roll or move longitudinally, and that they serve as bearings for the drawer, while they keep it from frictional contact with the cleats . . . second, in a novel mode of construction of cleats" (para. 1).
Date:
June 7, 1881
Creator:
Johnson, William H. & Whomes, Joseph
System:
The Portal to Texas History
Draft Equalizer.
Patent for an improved double tree adapted to be used without single-trees designed to equalize the draft in case on horse gets ahead of the other in a draft team.
Date:
July 18, 1882
Creator:
Jones, Jeremiah C. & Robertson, Alexander W.
System:
The Portal to Texas History
Draft-Equalizer
Patent for an improved three-horse equalizer for draft horses.
Date:
February 20, 1883
Creator:
Kerby, George M.
System:
The Portal to Texas History
Door Check.
Patent for a new and improved door check. This design "consists in a sliding spring-bolt held in the upper edge of the door, combined with a curved notched frame, projecting from the door-frame, into the notches of which frame the end of the bolt can pass to hold the door in the desired potion. The sliding bolt is connected . . . [to] a crank-arm formed on one end of a spindle, provided on the opposite end with a handle-knob, the crank arm of which spindle can be adjusted to lock the spring-bolt" (lines 11-21).
Date:
June 26, 1883
Creator:
McCurdy, Thomas B.
System:
The Portal to Texas History
Drag Saw.
Patent for a new and improved drag saw. This design "is to provide a simple, inexpensive, durable, and easily-operated machine for cross-cutting timber for railway-ties and material, or for cord-wood, stove-wood, or other uses" (lines 7-11).
Date:
January 1, 1884
Creator:
Bennett, William A.
System:
The Portal to Texas History
Door Check.
Patent for a new and improved door check. This design "consists in providing the door with a sliding rod, which is adapted to be actuated so as to engage with a retaining-block attached to the floor by the knob-shank, which is provided with a dog for raising and lowering the rod" (lines 17-22).
Date:
January 13, 1885
Creator:
Niggli, Emil
System:
The Portal to Texas History
Door Check.
Patent for a new and improved door check. This design "consists in a disk pivoted on a plate and provided with a notch for receiving the corner of the door, and with a series of teeth with which a pawl engages for locking the disk in place after it has been adjusted" (lines 11-15).
Date:
April 14, 1885
Creator:
Callaway, James William
System:
The Portal to Texas History
Drawers and Pantaloons.
Patent for new and improved pants. This design consists in "[a] pair of pantaloons, each leg of which is composed of a single piece, having the two edges and extended from the crotch to the foot of the leg, said extended portions being lapped one upon the other and united by the double lines of stitching, one in front and the other in rear of the usual line of the inside seam, whereby the leg is given a double thickness on the inside, and a smooth unbroken surface, adapting them to be worn in the saddle with comfort" (lines 16-26).
Date:
July 7, 1885
Creator:
Blake, Samuel Diggs
System:
The Portal to Texas History
Drag Saw.
Patent for a new and improved drag-saw. This design "consist[s] of a standard, two beams connected to the standard on opposite sides thereof, a crank-shaft held by the standard, suitable drive-gearing for operating the same, a pitman connecting the crank-shaft and the saw, a pendulum attached to the saw and the pitman at one end and to a sliding head-block at the other end, the head-block sliding in the slotted standards and having a rack-bar extended therefrom, a pawl engaging the rack, the operating-cord attached to the head-block and passing over a guide-pulley on the slotted standards" (lines 4-16).
Date:
November 3, 1885
Creator:
Boston, Arnet P.
System:
The Portal to Texas History