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Gate Latch
Patent for a gate latch. Illustration included.
Date:
December 29, 1903
Creator:
Abernathy, James Rubin
System:
The Portal to Texas History
Plutonium recovery from spent reactor fuel by uranium displacement
This report discusses a process for separating uranium values and transuranic values from fission products containing rare earth values when the values which are contained together in a molten chloride salt electrolyte. A molten chloride salt electrolyte with a first ratio of plutonium chloride to uranium chloride is contacted with both a solid cathode and an anode having values of uranium and fission products including plutonium. A voltage is applied across the anode and cathode electrolytically to transfer uranium and plutonium from the anode to the electrolyte while uranium values in the electrolyte electrolytically deposit as uranium metal on the solid cathode in an amount equal to the uranium and plutonium transferred from the anode causing the electrolyte to have a second ratio of plutonium chloride to uranium chloride. Then the solid cathode with the uranium metal deposited thereon is removed and molten cadmium having uranium dissolved therein is brought into contact with the electrolyte resulting in chemical transfer of plutonium values from the electrolyte to the molten cadmium and transfer of uranium values from the molten cadmium to the electrolyte until the first ratio of plutonium chloride to uranium chloride is re-established.
Date:
December 31, 1991
Creator:
Ackerman, J. P.
System:
The UNT Digital Library
Magnesium transport extraction of transuranium elements from LWR fuel
This report discusses a process of separating transuranium actinide values from uranium values present in spent nuclear oxide fuels which contain rare earth and noble metal fission products. The oxide fuel is reduced with Ca metal in the presence of CaCl{sub 2} and a U-Fe alloy containing not less than about 84% by weight uranium at a temperature in the range of from about 800{degrees}C to about 850{degrees}C to produce additional uranium metal which dissolves in the U-Fe alloy raising the uranium concentration and having transuranium actinide metals and rare earth fission product metals and the noble metal fission products dissolved therein. The CaCl{sub 2} having CaO and fission products of alkali metals and the alkali earth metals and iodine dissolved therein is separated and electrolytically treated with a carbon electrode to reduce the CaO to Ca metal while converting the carbon electrode to CO and CO{sub 2}. The Ca metal and CaCl{sub 2} is recycled to reduce additional oxide fuel. The U-Fe alloy having transuranium actinide metals and rare earth fission product metals and the noble metal fission products dissolved therein is contacted with Mg metal which takes up the actinide and rare earth fission product metals. The U-Fe …
Date:
December 31, 1991
Creator:
Ackerman, J. P.; Battles, J. E.; Johnson, T. R.; Miller, W. E. & Pierce, R. D.
System:
The UNT Digital Library
Curtain-Pole Remover
Patent for a curtain pole remover that allows the user to remove or put in place curtain poles without climbing on anything.
Date:
December 3, 1912
Creator:
Adair, Lulu N.
System:
The Portal to Texas History
Improvement in Pipe and Rod Clamps.
Patent for "improvements in devices for supporting pipes and rods in position" (lines 10-11) including instructions and illustrations.
Date:
December 29, 1914
Creator:
Adams, Benjamin F.
System:
The Portal to Texas History
Snap-Hook
Patent for a snap hook in order to "provide a hook of simple construction that shall be securely locked when in use" (p. 2)
Date:
December 30, 1890
Creator:
Adams, Don B.
System:
The Portal to Texas History
Electric Signal System for Electric Cars
Patent for signal systems for electric railways where wires arranged in connection with the signal lamps at the ends of the blocks and on the cars will be lit to signal caution. There will also be a signal within the car if another moving car in the opposite direction enters the same block.
Date:
December 26, 1905
Creator:
Adams, Edwin J.
System:
The Portal to Texas History
Switch and Signal System
Patent for a switch and signal system to be used for railroad signaling and to prevent trains on different tracks from colliding. (lines 12-22)
Date:
December 12, 1905
Creator:
Adams, Edwin J.
System:
The Portal to Texas History
Automatic Signal System
Patent for an automatic signal system for use with railways. Illustrations included.
Date:
December 14, 1909
Creator:
Adams, Powell O.
System:
The Portal to Texas History
Threading Apparatus For Pipes.
Patent for improvements of the threading apparatus for pipes through a simple attachment to automobiles wheels. Illustrated figures with descriptions are presented to easily show the ways in which the device attaches and is used.
Date:
December 28, 1920
Creator:
Adkins, Otto O.
System:
The Portal to Texas History
Gate
Patent for a gate. Illustrations included.
Date:
December 24, 1907
Creator:
Aeschlimann, Adolf E.
System:
The Portal to Texas History
Screen-Hanger.
Patent for more accessible window screen hangers. The inventors claimed that these improved screen hangers eliminated the challenge of hanging window screens on the exterior of tall buildings. These screen hangers allowed customers to hang, adjust, and clean screens from the inside of buildings.
Date:
December 9, 1919
Creator:
Agee, Howard L. & Agee, Sidney A.
System:
The Portal to Texas History
World-Chronometer
Patent for a globe set on top of a pedestal, where the globes rotates by clock work to instruct the user of the time for any given place on the globe. Sides of the pedestal also allow for advertising.
Date:
December 29, 1914
Creator:
Agnew, Walter F.
System:
The Portal to Texas History
Guano-Distributer.
Patent for a guano fertilizer distributor, which prevents spillage of the guano from the device.
Date:
December 6, 1910
Creator:
Akins, Lee J.
System:
The Portal to Texas History
Improvement in Combined Lint-Room and Cotton-Presses.
Patent for the improvement of lint-rooms and cotton presses, including a description and illustrations.
Date:
December 20, 1870
Creator:
Albertson, Ichabod H.
System:
The Portal to Texas History
High energy bursts from a solid state laser operated in the heat capacity limited regime
Solid state laser technology is a very well developed field and numerous embodiments and modes of operation have been demonstrated. A more recent development has been the pumping of a solid state laser active medium with an array of diode lasers (diode pumping, for short). These diode pump packages have previously been developed to pump solid state lasers with good efficiency, but low average power. This invention is a method and the resulting apparatus for operating a solid state laser in the heat capacity mode. Instead of cooling the laser, the active medium will heat up until it reaches some maximum acceptable temperature. The waste heat is stored in the active medium itself.
Date:
December 31, 1994
Creator:
Albrecht, G.; George, E.V. & Krupke, W.
System:
The UNT Digital Library
Combined Planter, Chopper, And Cultivator.
Patent for a new and useful improvement in "combined cotton planters, choppers, and cultivators" (line 9-11).
Date:
December 6, 1898
Creator:
Albreekt, Niklaus
System:
The Portal to Texas History
A flow injection trace gas analyzer for on-site determination of organoarsenicals
Lewisite was developed during World War I as a chemical warfare agent. Several countries produced large quantities of the agent before, during and after World War II. The Chemical Weapons Convention treaty, recently signed, requires the destruction of Lewisite. In implementing the Chemical Weapons Convention treaty, it will be necessary to monitor the facilities at which various chemical agents including Lewisite may be stored for compliance with the agreement. The inspection procedures must meet stringent standards for safety, quality assurance and accountability. In preparing for these inspections a technology gap has been identified in the ability to detect and monitor for the presence of Lewisite in ambient air, particularly in the facilities where chemical warfare agents are stored. A method and an apparatus for determining the concentration of Lewisite in the ambient atmosphere are described. The apparatus includes a mechanism for separating and collecting a Lewisite sample from the atmosphere, a mechanism for converting the collected Lewisite to an arsenite ion solution sample, and a mechanism for electrochemically detecting the converted arsenite ions in the sample, whereby the amount of arsenite ions detected is proportional to the concentration of Lewisite in the atmosphere.
Date:
December 31, 1995
Creator:
Aldstadt, J.H. III
System:
The UNT Digital Library
Method for separating constituents from solution employing a recyclable Lewis acid metal-hydroxy gel
This invention permits radionuclides, heavy metals, and organics to be extracted from solution by scavenging them with an amorphous gel. In the preferred embodiment, a contaminated solution (e.g. from soil washing, decontamination, or groundwater pumping) is transferred to a reaction vessel. The contaminated solution is contacted by the sequestering reagent which might contain for example, aluminate and EDTA anions in a 2.5 M NaOH solution. The pH of the reagent bearing solution is lowered on contact with the contaminated solution, or for example by bubbling carbon dioxide through it, causing an aluminum hydroxide gel to precipitate as the solution drops below the range of 1.8 to 2.5 molar NaOH (less than pH 14). This precipitating gel scavenges waste contaminants as it settles through solution leaving a clean supernatant which is then separated from the gel residue by physical means such as centrifugation, or simple settling. The gel residue containing concentrated contaminants is then redissolved releasing contaminants for separations and processing. This is a critical point: the stabilized gel used in this invention is readily re-dissolved by merely increasing the pH above the gels phase transition to aqueous anions. Thus, concentrated contaminants trapped in the gel can be released for convenient …
Date:
December 31, 1995
Creator:
Alexander, D. H.
System:
The UNT Digital Library
Improvement in Fruit-Corers.
Patent for a device to core fruit and cut it into slices.
Date:
December 17, 1872
Creator:
Alexander, Oscar W.
System:
The Portal to Texas History
Cotton-Chopper.
Patent for a cotton chopper, which cut the cotton into hills of equal distance apart.
Date:
December 7, 1909
Creator:
Alexander, Winston B.
System:
The Portal to Texas History
Machine for Cutting Stick-Candy.
Patent for a simple and durable machine for cutting stick-candy that is "capable of traveling over a table or other support upon which stick candy in given lengths may be laid, and to so travel over the table that the lengthy sticks of candy will be made to slide over the bed of the machine, under a knife or its equivalent; and a further object of the invention is to provide a means whereby the knife may be manipulated at predetermined points in the travel of the machine to cut the lengthy sticks into shorter predetermined lengths" (lines 11-21).
Date:
December 18, 1894
Creator:
Allardyce, John M.
System:
The Portal to Texas History
Phosphazene polymer containing composites and method for making phosphazene polymer containing composites
The object of the invention is to provide a composite material comprised of phosphazene polymer. A feature of phosphazene-containing composites is their superior stiffness, thermal stability, and hardness which is lacking in more typical composite constituents. An advantage of using phosphazene composites is a wider range of applications, including uses in harsh environments. Another object of the present invention provides a method for producing phosphazene-containing composite materials through a pultrusion process. In brief, these and other objects are achieved by a composite produced by first coating a reinforcing material with an inorganic phosphazene compound and then polymerizing the phosphazene compound so as to confer superior thermal, physical and chemical resistance qualities to the composite. 2 figs., 6 tabs.
Date:
December 31, 1990
Creator:
Allen, C. A.; Grey, A. E.; McCaffrey, R. R.; Simpson, B. M. & Stone, M. L.
System:
The UNT Digital Library
Sand and Slime Separator and Classifier.
Patent for a sand and slime separator and classifier for use in mining operations.
Date:
December 7, 1909
Creator:
Allen, Charles
System:
The Portal to Texas History