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4,628 Matching Results
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Acetylene Gas Machine
Patent for a new and useful improvement in gas-machines.
Date:
December 14, 1897
Creator:
Bryant, Henry
Object Type:
Patent
System:
The Portal to Texas History
Bale Tie
Patent for a new and improved bale tie. This invention is to "provide a new and improved bale-tie which is simple and durable in construction, not liable to become accidentally unlocked, and arranged to permit its use on ordinary compresses" (line 7 - 11).
Date:
December 14, 1897
Creator:
Edmonston, Thomax Cole
Object Type:
Patent
System:
The Portal to Texas History
Bag Fastener
Patent for a bag fasteners. Illustration included.
Date:
December 14, 1909
Creator:
Brown, Flavius J. & Lasater, A. M.
Object Type:
Patent
System:
The Portal to Texas History
Coin Controlled Tire Inflater
Patent for a new and useful improvements in coin controlled tire inflaters. This invention is to "provide an apparatus to be operated through the introduction of a coin of predetermined value of inflating pneumatic tires to any pressure desired automatically" (line 15 - 19).
Date:
December 14, 1897
Creator:
Ligon, John Barrows
Object Type:
Patent
System:
The Portal to Texas History
Biblical Game Apparatus
Patent for a new and useful game apparatus. This design is to "provide a biblical game apparatus adapted to be employed in play by two or more persons" (line 8-10).
Date:
December 14, 1897
Creator:
James, Will S.
Object Type:
Patent
System:
The Portal to Texas History
Blind-Slat Fastener.
Patent for improvements in blind-slat fasteners, in which it holds the blinds so that air can pass through. Illustration is included.
Date:
December 14, 1909
Creator:
Riley, John Brizendine
Object Type:
Patent
System:
The Portal to Texas History
Bolsters for Log Wagons
Patent for a bolster for use with log wagons by aiding in the arrangement of varying sizes of log loads. Illustration included.
Date:
December 14, 1909
Creator:
Warren, John Thomas
Object Type:
Patent
System:
The Portal to Texas History
Enzymatic desulfurization of coal
Our experimental approach focuses on the use of enzymes which catalyze the addition of oxygen to organic compounds., In tailoring the application of these enzymes to coal processing, we are particularly interested in ensuring that oxidation occurs at sulfur and not at carbon-carbon bonds. Previous studies with DBT have shown that the reaction most frequently observed in microbial oxidative pathways is one in which DBT is oxidized at ring carbons. These reactions, as we have said, are accompanied by a considerable decrease in the energy content of the compound. In addition, microbial pathways have been identified in which the sulfur atom is sequentially oxidized to sulfoxide, to sulfone, to sulfonate, and finally to sulfuric acid. In this case, the fuel value of the desulfurized compounds is largely retained. We are evaluating the potential of commercially available enzymes to perform this function.
Date:
December 14, 1989
Creator:
Boyer, Y.N.; Crooker, S.C.; Kitchell, J.P. & Nochur, S.V.
Object Type:
Report
System:
The UNT Digital Library
HYLIFE-II inertial confinement: Fusion power plant design
The HYLIFE-2 inertial fusion power plant design study uses a liquid fall, in the form of jets to protect the first structural wall from neutron damage, x rays, and blast to provide a 30-y lifetime. HYLIFE-1 used liquid lithium. HYLIFE 2 avoids the fire hazard of lithium by using a molten salt composed of fluorine, lithium, and beryllium (Li{sub 2}BeF{sub 4}) called Flibe. Access for heavy-ion beams is provided. Calculations for assumed heavy-ion beam performance show a nominal gain of 70 at 5 MJ producing 350 MJ, about 5.2 times less yield than the 1.8 GJ from a driver energy of 4.5 MJ with gain of 400 for HYLIFE-1. The nominal 1 GWe of power can be maintained by increasing the repetition rate by a factor of about 5.2, from 1.5 to 8 Hz. A higher repetition rate requires faster re-establishment of the jets after a shot, which can be accomplished in part by decreasing the jet fall height and increasing the jet flow velocity. Multiple chambers may be required. In addition, although not considered for HYLIFE-1, there is undoubtedly liquid splash that must be forcibly cleared because gravity is too slow, especially at high repetition rates. Splash removal can …
Date:
December 14, 1990
Creator:
Moir, Ralph W.
Object Type:
Article
System:
The UNT Digital Library
Database of average-power damage thresholds at 1064 nm
We have completed a database of average-power, laser-induced, damage thresholds at 1064 nm on a variety of materials. Measurements were made with a newly constructed laser to provide design input for moderate and high average-power laser projects. The measurements were conducted with 16-ns pulses at pulse-repetition frequencies ranging from 6 to 120 Hz. Samples were typically irradiated for time ranging from a fraction of a second up to 5 minutes (36,000 shots). We tested seven categories of samples which included antireflective coatings, high reflectors, polarizers, single and multiple layers of the same material, bare and overcoated metal surfaces, bare polished surfaces, and bulk materials. The measured damage threshold ranged from < 1 J/cm/sup 2/ for some metals to > 46 J/cm/sup 2/ for a bare polished glass substrate. 4 refs., 7 figs., 1 tab.
Date:
December 14, 1987
Creator:
Rainer, F.; Hildum, E.A. & Milam, D.
Object Type:
Article
System:
The UNT Digital Library
Heavy ion beam and reactor chamber interface design
The design of the heavy-ion beam and the HYLIFE-II reactor chamber interface must provide final focusing quadruple triplets, neutron shielding, fast shutters, vapor condensation and pumping, thermal insulation, and blast resistant structures. The smallest half angle encompassing all beams striking the target might be {plus minus}14{degrees} for an array of 4 {times} 4 beams or {plus minus}9{degrees} if the four corner beams are eliminated, giving a 12-beam array. The target gain drops considerably from the 0{degree} published values because of this finite angle. The assumed one-sided irradiation reduces the number of bending magnets. A 350-MJ yield might be achieved with a 6-MJ driver (gain of 58) (nominal 1000 MWe net power with a repetition rate of 8 Hz). For either lower repetition rate or lower gain the yield must be increased by increasing the driver energy. The beam ports are protected from radiation by an array of vertical and horizontal, neutronically-thick, liquid jets. 6 refs., 7 figs.
Date:
December 14, 1990
Creator:
Moir, Ralph W.
Object Type:
Article
System:
The UNT Digital Library
Utility and performance relative to consumer product energy efficiency standards. Final technical report
An investigation of the relative utility and performance of nine major household consumer products covered by the Energy Policy and Conservation Act is summarized. The objective was to define the terms utility and performance, to recommend methods for quantifying these two concepts, and to recommend an approach for dealing with utility and performance issues in the energy efficiency standards program. The definitions developed are: performance of a consumer product is the objective measure of how well, with the expected level of consumer input (following the manufacturer's instructions for installation and operation), the product does its intended job; and utility of a consumer product is a subjective measure, based on the consumer's perception, of the capability of the product to satisfy human needs. Quantification is based on test procedures and consumer survey methods which are largely already in use by industry. Utility and performance issues are important in product classification for prescribing energy efficiency standards. The recommended approach to utility and performance issues and classification is: prior to setting standards, evaluate utility and performance issues in the most quantitative way allowed by resources and schedules in order to develop classification guidelines. This approach requires no changes in existing Department of Energy …
Date:
December 14, 1979
Creator:
Coggins, J.L.
Object Type:
Report
System:
The UNT Digital Library
Oscillating liquid flow ICF Reactor
Oscillating liquid flow in a falling molten salt inertial confinement fusion reactor is predicted to rapidly clear driver beam paths of residual liquid droplets. Oscillating flow will also provide adequate neutron and x-ray protection for the reactor structure with a short (2-m) fall distance permitting an 8 Hz repetition rate. A reactor chamber configuration is presented with specific features to clear the entire heavy-ion beam path of splashed molten salt. The structural components, including the structure between beam ports, are shielded. 3 refs., 12 figs.
Date:
December 14, 1990
Creator:
Petzoldt, R.W.
Object Type:
Article
System:
The UNT Digital Library
Development and Evaluation of High-Temperature Tungsten Alloys : Final Report, October 1, 1960 - September 30, 1960
This report summarizes investigations taken between October 1, 1959, to September 30, 1960 with the objectives of developing high-tungsten alloys which are readily fabricable into massive and complex shapes and which possess adequate strength for operation at temperatures up to 2000 F. Within this report, studies are divided into two main categories: alloy development and material fabrication techniques
Date:
December 14, 1960
Creator:
Holtz, F. C. & Van Thyne, R. J.
Object Type:
Report
System:
The UNT Digital Library
Results from hadron colliders
The present status of hadron collider physics is reviewed. The total cross section for {bar p} + p has been measured at 1.8 TeV: {sigma}{sub tot} = 72.1 {plus minus} 3.3 mb. New data confirm the UA2 observation of W/Z {yields} {bar q}q. Precision measurements of M{sub W} by UA2 and CDF give an average value M{sub W} = 80.13 {plus minus} 0.30 GeV/c{sup 2}. When combined with measurements of M{sub Z} from LEP and SLC this number gives sin{sup 2}{theta}{sub W} = 0.227 {plus minus} 0.006, or m{sub top} = 130{sub {minus}60}{sup +40} GeV/c{sup 2} from the EWK radiative correction term {Delta}r. Evidence for hadron colliders as practical sources of b quarks has been strengthened, while searches for t quarks have pushed the mass above M{sub W}: m{sub top} > 89 GeV/c{sup 2} 95% cl (CDF Preliminary). Searches beyond the standard model based on the missing E{sub T} signature have not yet produced any positive results. Future prospects for the discovery of the top quark in the range m{sub top} < 200 GeV/c{sup 2} look promising. 80 refs., 35 figs., 7 tabs.
Date:
December 14, 1990
Creator:
Pondrom, L.G. (Wisconsin Univ., Madison, WI (USA))
Object Type:
Article
System:
The UNT Digital Library
Magnetic Recorder for Nuclear Pulse Application : Covering the Period from October 6, 1959 to December 5, 1959
"Abstract: Data on analog magnetic tape characteristics are presented along with results from conventional and modulator playback system operational tests. Theoretical considerations imply that the modulator head should be loss sensitive to short term variations in record and playback tape speed. It is also pointed out that although a tape recorder operating at 7.5 in./sec has only 12 kcs bandwidth for sinusoidal wave forms. the record and play-back amplifiers for pulse recording can operate with other bandwidths. These amplifiers must be capable of passing a square wave with a frequency of 1.5 kcs. A square wave of such frequency represents the condition of 350 microsecond pulses with a 700 microsecond period. (J.R.D)."
Date:
December 14, 1959
Creator:
Burgwald, G. M.
Object Type:
Report
System:
The UNT Digital Library
Federal Procurement Law and Natural Disasters
This report discusses the federal procurement laws regarding federal agencies hiring contractors for disaster recovery work and the encouragement to use local contractors for the work to help the local economy recover.
Date:
December 14, 2017
Creator:
Carpenter, David H. & Lunder, Ericka K.
Object Type:
Report
System:
The UNT Digital Library
Softwood Lumber Imports from Canada: Current Issues
This report discusses the latest softwood lumber dispute between the U.S. and Canada, known as Lumber V. This report provides background information on the dispute, summarizes the key issues leading to the tensions between the United States and Canada over softwood lumber, and examines current developments in Lumber V.
Date:
December 14, 2017
Creator:
Hoover, Katie & Fergusson, Ian F.
Object Type:
Report
System:
The UNT Digital Library
HYLIFE-II inertial confinement fusion reactor design
The HYLIFE-2 inertial fusion power plant design study uses a liquid fall, in the form of jets to protect the first structural wall from neutron damage, x rays, and blast to provide a 30-y lifetime. HYLIFE-1 used liquid lithium. HYLIFE 2 avoids the fire hazard of lithium by using a molten salt composed of fluorine, lithium, and beryllium (Li{sub 2}BeF{sub 4}) called Flibe. Access for heavy-ion beams is provided. Calculations for assumed heavy-ion beam performance show a nominal gain of 70 at 5 MJ producing 350 MJ, about 5.2 times less yield than the 1.8 GJ from a driver energy of 4.5 MJ with gain of 400 for HYLIFE-1. The nominal 1 GWe of power can be maintained by increasing the repetition rate by a factor of about 5.2, from 1.5 to 8 Hz. A higher repetition rate requires faster re-establishment of the jets after a shot, which can be accomplished in part by decreasing the jet fall height and increasing the jet flow velocity. Multiple chambers may be required. In addition, although not considered for HYLIFE-1, there is undoubtedly liquid splash that must be forcibly cleared because gravity is too slow, especially at high repetition rates. Splash removal can …
Date:
December 14, 1990
Creator:
Moir, Ralph W.
Object Type:
Article
System:
The UNT Digital Library
Mixed-Oxide Fuel Fabrication Plant and Plutonium Disposition: Management and Policy Issues
This report discusses an agreement made between Russia and the U.S. to dispose of excess weapons-grade plutonium, and describes both Russian and U.S. methods and plans for disposal. The U.S. plans are discussed in more detail, with various Congressional considerations regarding funding of the program.
Date:
December 14, 2017
Creator:
Holt, Mark & Nikitin, Mary Beth D.
Object Type:
Report
System:
The UNT Digital Library
The $50 Billion Threshold in the Dodd-Frank Act: Key Findings
This report provides an overview key findings from the newly issued CRS Report R45036, Bank Systemic Risk Regulation: The $50 Billion Threshold in the Dodd-Frank Act. It includes some background information and a list of bills that may also affect the legislation.
Date:
December 14, 2017
Creator:
Labonte, Marc & Perkins, David W.
Object Type:
Report
System:
The UNT Digital Library
The concentration of radionuclides and metals in vegetation adjacent to and in the SRL Seepage Basins
In 1991 the trees on the dikes surrounding the SRL Seepage Basins were sampled and analyzed to inventory the contaminants transported from the basins into the vegetation. Tree leaves and wood were collected and analyzed for [sup 90]Sr, [sup 60]Co, [sup 137]Cs, [sup 238]Pu, [sup 239,240]Pu, [sup 242,244]Cm, [sup 241]Am, Ba, Cr, Hg, Mg, Mn, Ni, and Pb. The concentrations of contaminants were influenced by sample type (leaves versus wood), species type (pines versus hardwoods), and location relative to distance from the basin. The total inventory of each contaminant in the trees was estimated. The relationships between leaf and wood, pines and hardwood, location, and mass of the material in each of these classes were used to weight the total inventory estimate. The radionuclide with the largest inventory was 0.7 mCi for [sup 90]Sr. The metallic contaminant with the largest inventory was Mn at 200 gm.
Date:
December 14, 1992
Creator:
Murphy, C. E. Jr.
Object Type:
Report
System:
The UNT Digital Library
Machining of uranium and uranium alloys
Uranium and uranium alloys can be readily machined by conventional methods in the standard machine shop when proper safety and operating techniques are used. Material properties that affect machining processes and recommended machining parameters are discussed. Safety procedures and precautions necessary in machining uranium and uranium alloys are also covered. 30 figures.
Date:
December 14, 1981
Creator:
Morris, T. O.
Object Type:
Article
System:
The UNT Digital Library
Radiation control standards and procedures
This manual contains the Radiation Control Standards'' and Radiation Control Procedures'' at Hanford Operations which have been established to provide the necessary control radiation exposures within Irradiation Processing Department. Provision is also made for including, in the form of Bulletins'', other radiological information of general interest to IPD personnel. The purpose of the standards is to establish firm radiological limits within which the Irradiation Processing Department will operate, and to outline our radiation control program in sufficient detail to insure uniform and consistent application throughout all IPD facilities. Radiation Control Procedures are intended to prescribe the best method of accomplishing an objective within the limitations of the Radiation Control Standards. A procedure may be changed at any time provided the suggested changes is generally agreeable to management involved, and is consistent with department policies and the Radiation Control Standards.
Date:
December 14, 1956
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library