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Equilibrium Adsorption of Krypton and Xenon on Activated Carbon and Linde Molecular Sieves
Equilibrium krypton and xenon adsorption isotherms were obtained for four varieties of charcoal and for Linde Molecular Sieves Types 4A and 5A, generally at 0, 25, and 60°c. Such data are of interest in connection with design and evaluation of adsorbers for radioactive noble gas fission products. The isotherms were fitted, by linear regression analysis, to straight-line forms of the Freundlich and Langmuir equations. The Freundlich linear equation gave the better fit and the parameters of this equation are presented for each of the isotherms. Also presented are the constants for an equation representing the temperature dependence of arbitrary adsorption coefficients, the coefficients having been calculated from the Freundlich isotherm parameters. Some aspects of the applicability and accuracy of these results are discussed.
Date:
February 14, 1961
Creator:
Ackley, R. D. & Browning, W. E., Jr.
Object Type:
Report
System:
The UNT Digital Library
Car-Coupling
Patent for "car-couplers of the class known as 'link-and-pin' couplers, and has for its object the provision of means whereby the coupling is effected automatically and whereby the coupling-pin is made to actuate the brake-shaft" (lines 14-19).
Date:
June 14, 1892
Creator:
Acuff, John
Object Type:
Patent
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.
Object Type:
Patent
System:
The Portal to Texas History
Removal of Radioiodine from Air-Steam Mixtures
A short-term study was made to investigate the removal of radioiodine vapor from air-steam mixtures as could occur immediately following a nuclear incident in a pressurized water reactor. Activated charcoal traps, designed to simulate a small section of a commercial charcoal canister, were tested at gas velocities of 23.9 to 74.9 ft/min over the temperature range of 75 to 118°C. The iodine removal efficiency was found to range from 99.80 to 99.4% with an average of 99.9%. One test performed at a temperature of 105°C and with gas velocity of 290 ft/min indicated that the iodine removal efficiency was reduced to 99.54%. Activated charcoal exhibits a high efficiency for iodine vapor removal under these test conditions and appears suitable for application in the decontamination of air-steam mixtures.
Date:
November 14, 1960
Creator:
Adams, R. E. & Browning, W. E. Jr.
Object Type:
Report
System:
The UNT Digital Library
Display Rack
Patent for store window display racks which can be easily removed and altered in appearance, allowing for more unique showings of commercial goods.
Date:
July 14, 1914
Creator:
Adamson, John Seldon
Object Type:
Patent
System:
The Portal to Texas History
Seed-Planter Attachment.
Patent for "seed-planter attachments; and it has for its object to provide a new and useful machine of this character adapted to simultaneously plant two rows of corn, cotton, or other seed at any desired distance apart and to also provide means for marking the third row at any width from the planter." (Lines 8-15) Includes instructions and illustrations.
Date:
April 14, 1896
Creator:
Adkins, Stephen J.
Object Type:
Patent
System:
The Portal to Texas History
European Union–U.S. Trade and Investment Relations: Key Issues
None
Date:
February 14, 2008
Creator:
Aheam, Raymond J.; Fischer, John W.; Goldfarb, Charles B.; Hanrahan, Charles E.; Eubanks, Walter W. & Rubin, Janice E.
Object Type:
Report
System:
The UNT Digital Library
U.S.-European Union Relations and the 2007 Summit
This report evaluates the results of the annual U.S.-EU summit on April 30, 2007, in Washington, DC.
Date:
May 14, 2007
Creator:
Ahearn, Raymond; Archick, Kristin & Belkin, Paul
Object Type:
Report
System:
The UNT Digital Library
U.S.-U.K. Free Trade Agreement: Prospects and Issues for Congress
This report discuses the prospects of a free trade agreement between the U.K. and the U.S. after Brexit and potential issues that might be addressed in such an agreement. Congress's role in free trade agreements is also discussed.
Date:
April 14, 2017
Creator:
Akhtar, Shayerah Ilias
Object Type:
Report
System:
The UNT Digital Library
Process of Catalyzing Oil and Apparatus Therefor.
Patent for improvements to oil boiling & processing to preserve its hydrocarbon properties by converting high-boiling oils to low-boiling oils using a specific apparatus for vaporization and a catalyst reheating device, such as a chamber furnace.
Date:
March 14, 1916
Creator:
Alexander, Clive M. & Taber Jr., George H.
Object Type:
Patent
System:
The Portal to Texas History
Churn.
Patent for an improved and simple churn that works easily and quickly. It "is adapted to permit of the simultaneous securing and retention of the cream vessel or receptacle in position in its journaling or carrying frame, as well as the cover upon said vessel, and to provide for the ready removal of said vessel or receptacle and its said cover preparatory to removing the contents of the vessel or the cleaning thereof" (lines 18-25).
Date:
February 14, 1893
Creator:
Alexander, Horace C.
Object Type:
Patent
System:
The Portal to Texas History
The Lacey Act: Protecting the Environment by Restricting Trade
This report looks at the history and applications of the Lacey Act, which allows the U.S. to enforce the laws of other countries.
Date:
January 14, 2014
Creator:
Alexander, Kristina
Object Type:
Report
System:
The UNT Digital Library
Whales and Sonar: Environmental Exemptions for the Navy's Mid-Frequency Active Sonar Training
This report discusses laws related to the protection of marine mammals when using mid-frequency active sonar including the Marine Mammal Protection Act (MMPA), the Endangered Species Act (ESA), the National Environmental Policy Act (NEPA), and the Coastal Zone Management Act (CZMA). The report discusses each of the laws generally, and then reviews the litigation surrounding the Navy's compliance with these laws in the context of using the sonar for training purposes off California's coast.
Date:
November 14, 2008
Creator:
Alexander, Kristina
Object Type:
Report
System:
The UNT Digital Library
Automobile-Headlight
Patent for movable automobile headlight which reflect downward on the road surface and utilizes the at-hand mounting hardware for static automobile headlights.
Date:
July 14, 1914
Creator:
Allan, William N.
Object Type:
Patent
System:
The Portal to Texas History
Awning.
Patent for a new and improved awning. This design consists in "[t]he awning frame, consisting of the pivoted curved rods, pivoted sectional braces pivotally connected to said rods, and the holding or suspending bars pivoted to said rods and having series of adjusting-apertures engaging pins or studs of said braces" (lines 74-79).
Date:
January 14, 1890
Creator:
Allen, William B.
Object Type:
Patent
System:
The Portal to Texas History
Device for Stripping Wheels from Shafts
Patent for a device for stripping wheels from shafts. Illustrations included.
Date:
May 14, 1912
Creator:
Allien, Leon F.
Object Type:
Patent
System:
The Portal to Texas History
Selected Privileges and Courtesies Extended to Departing and Former Senators
This report provides information on selected privileges and courtesies (with the exception of federal health insurance, life insurance, and retirement benefits) extended to departing and former Senators. Some are derived from law and Senate Rules, but most are courtesies that have been extended as a matter of custom.
Date:
September 14, 2004
Creator:
Amer, Mildred
Object Type:
Report
System:
The UNT Digital Library
Nut Lock.
Patent for a new and improved nut-lock. This design "consist[s] of a strip of metal having the looped portion adapted to embrace the bolt, and having the downwardly-bent spring portion or end forming a biting-edge, the rearwardly-extending straight portion bent upward . . . to form a bearing point or edge, which is also adapted, in conjunction with the edge to grip the fish-plate . . . the forwardly-extending straight spring portion overlapping the straight portion, the inner curved edge of which lies in the path of the edge of the nut when the latter is turned upon the bolt" (lines 76-89).
Date:
January 14, 1890
Creator:
Anderson, Lee
Object Type:
Patent
System:
The Portal to Texas History
Process For The Reduction Of Iron And Lead Ores.
Patent for a process that reduces iron and lead ores. This is done through two distinct combustion processes, the first of which converts the fuel and oxygen into carbon dioxide and the second process which produces carbon monoxide, that can produce iron or steel of different grades.
Date:
June 14, 1921
Creator:
Anderson, Robert J.
Object Type:
Patent
System:
The Portal to Texas History
Combustion Apparatus
Patent for a combustion apparatus that will maximize the heat produced with any given amount of fuel.
Date:
December 14, 1920
Creator:
Anderson, Robert James
Object Type:
Patent
System:
The Portal to Texas History
Draft-Equalizer
Patent for "a draft-equalizer that the draft will be equally distributed among each of the animals attached thereto, so that one may travel in the furrow, if desired, and the remainder permitted to move over the unplowed ground" (lines 22-27).
Date:
May 14, 1901
Creator:
Anderson, Samuel Cornelious
Object Type:
Patent
System:
The Portal to Texas History
Tree and Brush Cutter.
Patent for a motorized tree and brush cutter that is portable.
Date:
February 14, 1911
Creator:
Andrews, Robert Lyle
Object Type:
Patent
System:
The Portal to Texas History
Car-Coupling.
Patent for improvement in automatic car-couplings “in which the coupling-pin (worked by a rope or chain) is guided in a vertical tube extending upward from the draw-head, and is supported in position for coupling by a block sliding with the draw-head,” (lines 9-14) includes illustration.
Date:
April 14, 1891
Creator:
Angerstein, John F.
Object Type:
Patent
System:
The Portal to Texas History
The Individuals with Disabilities Education Act (IDEA): Overview and Selected Issues
This report provides a brief overview of the act with particular attention paid to issues of recent congressional concern, such as funding and private school enrollment.
Date:
January 14, 2008
Creator:
Apling, Richard N. & Jones, Nancy L.
Object Type:
Report
System:
The UNT Digital Library