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The Propagation of Spherical Shock Waves
This technical report is a summary of unclassified theoretical work on propagation of one-dimensional shock waves and on the propagation of spherical shock waves in gases.
Date:
May 4, 1953
Creator:
Ungar, Eric E.
Object Type:
Report
System:
The UNT Digital Library
Texas Inmate Monthly Report: [April 2021], Part 2
Monthly report issued by the Texas Department of Criminal Justice providing statistical information about numbers and categories of inmates held in various locations across Texas.
Date:
May 4, 2021
Creator:
Texas. Department of Criminal Justice.
Object Type:
Report
System:
The Portal to Texas History
The ECHO, Vol. 89, No. 4, Ed. 1 Thursday, May 4, 2017
Monthly newspaper produced for inmates in the Texas criminal justice system containing news stories, policy updates, opinion pieces, creative works, and other information.
Date:
May 4, 2017
Creator:
Texas. Department of Criminal Justice.
Object Type:
Newspaper
System:
The Portal to Texas History
A Miniature Beta Scintillation Detector
The development of a miniature probe was desired for measuring approximate single nuclide beta dose rate in solution and in various animal organs. This probe designed for biological experiments, was to have maximum possible sensitivity to detect low levels of nuclide concentrations. The desired dimensions of the light pipe were to be approximately one-fourth-inch diameter with lengths of three to twelve inches.
Date:
May 4, 1960
Creator:
Kent, R. A. R. & Sheen, E. M.
Object Type:
Report
System:
The UNT Digital Library
Redox Dissolver Off-Gas Monitor, Calibration and Test
In order to prevent dangerous concentrations of combustible gases such as hydrogen and ammonia in Redox dissolvers, a continuous analysis of the off-gases is needed. Hydrogen is evolved from most fuel element dissolution processes now used or planned for use at Redox. Ammonia is also released from ammonium fluoride dissolution of zirconium and caustic dissolution of aluminum cladding. Oxides of nitrogen and hydrogen are formed during nitric acid dissolution of uranium or plutonium-aluminum alloys. Since no fixed ratio exists between the concentrations of any two of these gases, the determination of combustible gases in complex mixtures is not possible with a single bulk property analyzer.
Date:
May 4, 1960
Creator:
Huck, C. E.
Object Type:
Report
System:
The UNT Digital Library
Plasters and Elastomers in Radiation Fields: A Preliminary Evaluation
With the construction of nuclear reactors, a great deal of emphasis has been placed upon studying the effects of radiation on the solid materials of construction. It has become necessary to consider radiation exposure as an environmental entity along with others so established such as temperature, electrical and mechanical stress, chemical resistance, weather, etc. Problems concerning the study of the behavior of materials that are thus increased when radiation exposure has to be evaluated singly or in combination with one or more of the other environments. This paper presents the general plan of attack being followed to solve such problems that arise when plastics and elastomers are placed in radiation fields. These studies were undertaken for two primary reasons: (1) to obtain engineering data for practical applications of the desirable properties of these materials for such devices as o-rings, gaskets, pipe, and electrical insulation; and (2) to use these data to enable a better understanding of the nature of radiation effects on these materials. The initial phase of the program is the screening of materials by subjecting them to various degrading environments and recording property changes. Thus, with data on how these materials performed, more comprehensive studies could be made …
Date:
May 4, 1956
Creator:
Harrington, Robert.
Object Type:
Report
System:
The UNT Digital Library
The Effect of Fast Fission on k
The importance of fast neutron fission (i.e., fission caused by neutrons before being slowed down) was recognized by Szilard, and calculations similar to the present one have already been carried out by him, Feld, Ashkin, Wheeler, Wigner and others. The purpose of the present paper is to give a general formula for the contribution of fast fission to the multiplication constant, which will include all the cases already considered and will be applicable to more complicated geometries than those considered by the previous writers.
Date:
May 4, 1943
Creator:
Castle, H.; Ibser, H.; Sacher, G. & Weinberg, Alvin Martin, 1915-2006
Object Type:
Report
System:
The UNT Digital Library
AUTOMOBILE-TOOL.
Patent for an automobile tool for the Ford make of automobiles that "will hold the springs away from the bands and allow the bands to be removed and replaced or adjusted, when necessary" (lines 29-32) including instructions and illustrations.
Date:
May 4, 1920
Creator:
ROBERGE, JAMES Z.
Object Type:
Patent
System:
The Portal to Texas History
Button-Fastener.
Patent for a button fastener for clothing that is not liable to damage cloth.
Date:
May 4, 1920
Creator:
Taylor, Albert Joshua
Object Type:
Patent
System:
The Portal to Texas History
Battery-Plate and Terminal Connection
Patent for improvements on a battery plate and terminal connections. Plate lugs and the terminal for the battery are a solid piece to fit more battery sizes and prevent the lugs from breaking off.
Date:
May 4, 1920
Creator:
Hawkins, Alda F.
Object Type:
Patent
System:
The Portal to Texas History
Valve-Flushing Means
Patent for a method of expelling debris and deposits in a foot valve, including illustrations.
Date:
May 4, 1920
Creator:
Coulson, William J.
Object Type:
Patent
System:
The Portal to Texas History
Window Attachment.
Patent for a sash attachment that steadies the movement of the window sash within a window frame and prevent rattling.
Date:
May 4, 1920
Creator:
Dysart, Marby P.
Object Type:
Patent
System:
The Portal to Texas History
Locomotive Driving-Box.
Patent for improvements in locomotive driving boxes. Designed to "eliminate the necessity of removing the driving wheels" (lines 13-14) to replace the crown brasses, "eliminate the necessity of removing the driving box" (lines 16-17) to avoid lateral wear, and eliminates the necessity of expensive machine work.
Date:
May 4, 1920
Creator:
Simmons, Arthur, W.
Object Type:
Patent
System:
The Portal to Texas History
Pump-Piston.
Patent for an improved pump piston used to pump oil from deep wells. The main improvement in this piston is that it is less susceptible to damage from sand or sediment by keeping sediment out of the piston valve, thus preventing it from accruing any long term damage that may render the piston irreparable. This design is also capable of fixing any wear due to sand or grit without removing the piston from the well.
Date:
May 4, 1920
Creator:
Coulson, William J.
Object Type:
Patent
System:
The Portal to Texas History
Stamping Machine.
Patent for improvements to stamping-machines used for the purposes of marketing nuts. The device can efficiently perform the laborious act of stamping individual nuts with a trademark. It can be adjusted to stamp nuts of any size, along with other similar objects, without breaking or injuring the nut.
Date:
May 4, 1920
Creator:
Wischhesen, Frederick B.
Object Type:
Patent
System:
The Portal to Texas History
Pump-Plunger
Patent for an improvement in Pump-Plungers. "It has a particular application to pumps of this character for use in oil or water wells where the liquid is mixed with sand" (lines 13-16), including illustrations.
Date:
May 4, 1920
Creator:
Mackenzie, Alexander S.
Object Type:
Patent
System:
The Portal to Texas History
Peanut-Roaster.
Patent for a new and improved peanut roaster with a rotating drum that can sound an alarm after a certain interval of time and can be moved directly over a roasting flame, including illustrations.
Date:
May 4, 1920
Creator:
Peckham, Samuel C.
Object Type:
Patent
System:
The Portal to Texas History
Signaling-Boiler
Patent for a signaling boiler designed to test food during the cooking process to determine whether food has completed cooking, and to signal via a whistle when said food is determined to have been properly cooked. Additional design details include the provision of a supporting mechanism for potatoes and other vegetables to rest on, as well as a compact form of the overall device.
Date:
May 4, 1920
Creator:
Kelley, Marven
Object Type:
Patent
System:
The Portal to Texas History
Roofing-Tile.
Patent for an improved plastic roofing tile with sealing, locking, pseudo-dove tail joints.
Date:
May 4, 1920
Creator:
Martin, John M.
Object Type:
Patent
System:
The Portal to Texas History
Covertible Stock and Freight Car.
Patent for an improved process of constructing convertible stock and freight train cars, including illustrations.
Date:
May 4, 1920
Creator:
Wyatt, Everett
Object Type:
Patent
System:
The Portal to Texas History
Technical Activities Report for April 1953
Two xenon extraction runs were made this month. It appears that a small design change in Trap #2 will be necessary so that a dry ice-trichloroethylene slurry can be used for coolant rather than liquid freon. For each of the runs this month the enriched generator was exposed for four hours in the est pile operating at 100 watts. A period of eight hours for cooling and xenon builidup was allowed before the collection and separation runs were started.
Date:
May 4, 1953
Creator:
Faulkner, J. E.; Davenport, D. E. & Duvall, G. E.
Object Type:
Report
System:
The UNT Digital Library
Review of cooling tower drift deposition models
The behavior, basic assumptions, and limitations of ten different models for calculating the drift deposition rate from wet cooling towers are reviewed and then their predicted results for such deposition with a common set of input parameters are compared. The predicted maximum deposition differs among the models by two orders of magnitude with a wide range in peak location. Comments and suggestions to improve the models are included.
Date:
May 4, 1977
Creator:
Chen, N. C. J.
Object Type:
Report
System:
The UNT Digital Library
Review of electron-beam welding studies utilizing x-ray spectroscopy
A review is presented of results obtained using an X-ray spectroscopy technique to study the electron-beam welding process. Results show that the technique is well suited for this kind of study. In particular, accurate voltage control is possible, and such control reduces weld-penetration variations significantly. Analytical techniques developed for studying noise on electron beams have general applicability for signal analysis. The work also shows that no voltage or current pulses were seen, and that the noise on the beam is probably not significant with respect to weld variations.
Date:
May 4, 1977
Creator:
Dixon, R. D.
Object Type:
Report
System:
The UNT Digital Library
Mound Laboratory activities in chemical and physical research: July--December 1976. [Isotope separation; metal hydride research, separation chemistry and separation research]
The status of the following programs is reported: isotope separation of carbon, argon, helium, krypton, neon, xenon, oxygen, and sulfur; metal hydride research; separation chemistry; and separation research. (LK)
Date:
May 4, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library