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Combination free-electron and gaseous laser (open access)

Combination free-electron and gaseous laser

A multiple laser having one or more gaseous laser stages and one or more free electron stages is described. Each of the free electron laser stages is sequentially pumped by a microwave linear accelerator. Subsequently, the electron beam is directed through a gaseous laser, in the preferred embodiment, and in an alternative embodiment, through a microwave accelerator to lower the energy level of the electron beam to pump one or more gaseous lasers. The combination laser provides high pulse repetition frequencies, on the order of 1 kHz or greater, high power capability, high efficiency, and tunability in the synchronous production of multiple beams of coherent optical radiation.
Date: June 8, 1981
Creator: Brau, C. A.; Rockwood, S. D. & Stein, W. E.
System: The UNT Digital Library
Toy Projectile (open access)

Toy Projectile

Patent for toy arrows and similar projectiles "which may be safely shot or projected by children without danger of the arrow injuring any object or hurting the child" (lines 12-15). Additionally it can be used to kill flies without smashing them.
Date: April 9, 1918
Creator: Pewther, Judson C.
System: The Portal to Texas History
Adjustable Device for Dressing Down Bearings (open access)

Adjustable Device for Dressing Down Bearings

Patent for a tool that dresses down bearings. Railroad engine journals and their corresponding bearings show wear over time. When replacing bearings into such a journal, without adaptation of the bearing there will be an improper fit, resulting in "hot journals" or "hot boxes". This tool adapts a bearing to a proper fit for the journal into which it will be installed.
Date: December 12, 1922
Creator: Mitchell, William A.
System: The Portal to Texas History
Pipe-Cutter (open access)

Pipe-Cutter

Patent for improvements to pipe-cutters that can cut pipes of different sizes.
Date: February 19, 1918
Creator: Hime, Clint T.
System: The Portal to Texas History
Bale-Core-Operating Device (open access)

Bale-Core-Operating Device

Patent for bale core operating device which improves the bale core quality around which the bale is formed, including illustrations.
Date: July 16, 1918
Creator: Taft, John A.
System: The Portal to Texas History
Chimney-Cowl (open access)

Chimney-Cowl

Patent for low cost chimney cowl improvements to insure proper draft and prevent fires.
Date: March 12, 1918
Creator: Burch, Robert S.
System: The Portal to Texas History
Process of Distilling Oil (open access)

Process of Distilling Oil

Patent for a new and improved process of distilling oil by inventor James E. Biggins.
Date: October 23, 1917
Creator: Biggins, James E.
System: The Portal to Texas History
Attachment For Coffee-Roasters (open access)

Attachment For Coffee-Roasters

Patent for coffee roaster attachment to aid in storing coffee after particle separation and also as a filter. The intention was to have this particular device be an attachment for many coffee roasters.
Date: February 12, 1918
Creator: Liberto, Samuel
System: The Portal to Texas History
Single Trigger Mechanism For Double-Barrel Guns (open access)

Single Trigger Mechanism For Double-Barrel Guns

Patent for "new and useful improvement in Single Trigger Mechanism For Double-Barrel Guns (lines 5-7)."
Date: April 2, 1918
Creator: Lindsay, Charles W.
System: The Portal to Texas History
Peanut-Roasting Device. (open access)

Peanut-Roasting Device.

Patent for a peanut roasting device that uniformly roasts peanuts. The peanut roaster is an automatic device that rotates through batches of raw peanuts in pre-determined intervals.
Date: August 6, 1918
Creator: Peckham, Samuel C.
System: The Portal to Texas History
Drier (open access)

Drier

Patent for inventing an low cost and efficient apparatus for a drier. The primary use is for drying fertilizers and animal hair, but can also be adapted for other commodities.
Date: August 27, 1918
Creator: Luther, Calvin R.
System: The Portal to Texas History
Garment-Protector. (open access)

Garment-Protector.

Patent for an easily detachable garment protector "for use with trousers and overalls to protect them from wear and from becoming soiled while in use" (lines 10-13) including illustration.
Date: July 2, 1918
Creator: Spencer, William Levi
System: The Portal to Texas History
Hopper-Door. (open access)

Hopper-Door.

Patent for a hopper door especially designed to be used "with a vertically movable weighing hopper adapted to receive and weigh cotton seed" (lines 10-12). The specifics of how the door is hinged and operates is especially important to the design.
Date: July 16, 1918
Creator: Peck, James F.
System: The Portal to Texas History
Sectional Rim (open access)

Sectional Rim

Patent for a sectional rim, which provides a sectional demountable tire rim with interlocking means to easily actuate and separate so that the tire can be removed from or applied to the rim.
Date: May 31, 1921
Creator: Williams, Harry S.
System: The Portal to Texas History
Means for Reducing Wear in the Working Barrels of Pumps (open access)

Means for Reducing Wear in the Working Barrels of Pumps

Patent for a means of reducing wear in the working barrels of pumps. The pumps made in this wat are specially adapted for operations in water or oil wells where the fluid being pumped is is mixed with sand and sediment.
Date: March 4, 1919
Creator: Carmichael, Robert E.
System: The Portal to Texas History
Sound-Producing Maching (open access)

Sound-Producing Maching

Patent for "sound producing instruments and sound imitators and comprises an assemble of a plurality of sound producing instruments all unified through a central control for us in connection with theaters and particularly moving pictures."
Date: September 10, 1918
Creator: Illo, Frank
System: The Portal to Texas History
Method for fabricating a seal between a ceramic and a metal alloy (open access)

Method for fabricating a seal between a ceramic and a metal alloy

A method of fabricating a seal between a ceramic and an alloy comprising the steps of prefiring the alloy in an atmosphere with a very low partial pressure of oxygen, firing the assembled alloy and ceramic in air, and gradually cooling the fired assembly to avoid the formation of thermal stress in the ceramic. The method forms a bond between the alloy and the ceramic capable of withstanding the environment of a pressurized water reactor and suitable for use in an electrical conductivity sensitive liquid level transducer.
Date: July 24, 1981
Creator: Kelsey, P.V. Jr. & Siegel, W.T.
System: The UNT Digital Library
Neutron-detection apparatus (open access)

Neutron-detection apparatus

An atomic fission counting apparatus used for neutron detection is provided with spirally curved electrode plates uniformly spaced apart in a circular array and coated with fissile material.
Date: April 24, 1981
Creator: Kopp, M.K. & Valentine, K.H.
System: The UNT Digital Library
Method of forming metallic coatings on polymeric substrates and of forming graded polymeric coatings or films (open access)

Method of forming metallic coatings on polymeric substrates and of forming graded polymeric coatings or films

The invention described herein relates to methods of forming graded polymeric coatings or films on a desired substrate and of forming metallic coatings on polymeric or other nonmetallic substrates. In particular, it relates to methods of forming such coatings or films by sorption and/or diffusion of metals into coatings or films of polymeric material deposited by conventional techniques on a desired substrate.
Date: March 11, 1981
Creator: Liepins, R.
System: The UNT Digital Library
Fireplace Guard (open access)

Fireplace Guard

Patent for a fireplace guard. This fireplace guard is designed to prevent accidental fires.
Date: July 23, 1918
Creator: Haley, Ernest T.
System: The Portal to Texas History
Oil Burner (open access)

Oil Burner

Patent for an oil burner. This oil burner is designed to consume fuel in a cheaper and more economical manner.
Date: March 14, 1922
Creator: Mills, Virgil H. & Mills, John H. T.
System: The Portal to Texas History
Process for Making Cattle Food (open access)

Process for Making Cattle Food

Patent for providing "a process whereby cattle food may be economically produced from sotol which, when combined with certain other food products, will produce an equivalent to alfalfa and which can be produced at a cost far below that required to provide a feed of the same amount of alfalfa &c., &c." lines 17-23
Date: February 26, 1918
Creator: Thatcher, Frank
System: The Portal to Texas History
Truck (open access)

Truck

Patent for a transportation truck. This truck is designed to better secure drums and barrels so that they can withstand tough roads.
Date: October 1, 1918
Creator: Golding, Charles D.
System: The Portal to Texas History
Foldable Landing Gear for Aeroplanes (open access)

Foldable Landing Gear for Aeroplanes

Patent for foldable landing gear for airplanes. This landing gear is designed to be folded into the body of the plane, by the pilot.
Date: September 21, 1920
Creator: McCarroll, Frank
System: The Portal to Texas History