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Patent of Invention--Gr 5--Cl.3--Bearing
The object of this invention is a bearing: a thrust bearing. This bearing is one in which the bearing faces is a continuous annular surface and the other an annular surface divided into shoes having the form of sectors.
Date:
October 28, 1925
Creator:
Fulpius, Edward
Object Type:
Report
System:
The UNT Digital Library
The Conversion of UF4 to U3Os
Methods of conversion of UF4 to U3O8 by fusion with ammonium oxalate dihydrate and other salts are described.
Date:
May 28, 1941
Creator:
Tevebaugh, A. D.; Tevebaugh, R. D.; Cline, W. D. & Warf, James C.
Object Type:
Report
System:
The UNT Digital Library
The Extraction Method of Purification of Uranyl Nitrate
Technical report. Three extractions of a diethyl ether solution of uranyl nitrate with small portions of water are effective in removing rare earths, as is shown by radio-gadolinium and radio-europium tracer experiments. A study of representative ethers, alcohols, ketones, and esters showed that diethyl ether and a mixture of 85% ethyl methyl ketone with 15% xylene are the best solvents for the extraction.
Date:
August 28, 1942
Creator:
Myers, L. S., Jr.; Anderson, K. C.; Wexler, Sol & Boyd, G. E.
Object Type:
Report
System:
The UNT Digital Library
Viscosities and Densities of Fluorolube Oils
Abstract: Since the viscosity-temperature relationships of fluorocarbons are somewhat unusual, when compared to hydrocarbons, for example, it was decided to measure the viscosities, at several temperatures, of various fluorolube oils. The calculation of the viscosity of a blend of oils is at best an uncertain operation, varying considerably with the method used. A comparison of various methods was indicated, in order that reasonably accurate values might be assumed for theoretical composites. The densities were measured at corresponding temperatures for use in converting viscosities, and for their value, per se.
Date:
April 28, 1943
Creator:
Haendler, H. M.; Burger, L. L.; Sheldon, Z. D. & Barber, E. J.
Object Type:
Report
System:
The UNT Digital Library
The Heavy-Water Homogeneous Pile: a Review of Chemical Researches and Problems
Technical Report: A generalized review of the chemical problems and researches related principally to the heavy water homogeneous pile is presented herewith. The report covers researches performed principally by the Columbia Group who initiated the study. This report contains a chronological outline of the development, a discussion of some special topics whose significance is paramount in any slurry pile discussion, and finally an outline of important research problems remaining, roughly graded in order of their importance. No attempt has been made to be either complete or detailed in the discussion. The emphasis has been principally on furnishing a broad guide to those who may t some future date take up this work.
Date:
February 28, 1944
Creator:
Hiskey, C. F. & Eidinoff, Maxwell Leigh, 1915-
Object Type:
Report
System:
The UNT Digital Library
Preparation of Carrier Free Zr-Cb Tracer, Problem Assignment No. 263-X61C, Progress Report
Technical report abstract. A rapid procedure for the preparation of very pure carrier-free Zr and Nb tracer involves the chloroform extraction of the cupferrides of Zr and Nb activities from process solutions. Zr and Nb form very stable chloroform soluble cupferrides in acid solutions (CK-993) and are separated from other fission elements almost quantitatively to yield pure mixture of Zr and Nb activity. A minimum of operations is required and the method is easily adaptable to remote control.
Date:
August 28, 1944
Creator:
Marinsky, Jacob A. (Jacob Akiba), 1918-2005 & Ballou, Nathan Elmer, 1919-
Object Type:
Report
System:
The UNT Digital Library
The Temperature Coefficient of the Diffusion Length for Thermal Neutrons in Water
Abstract. The diffusion length of thermal neutrons in water as a function of the water temperature has been measured. The results are expressed as a linear relation: L = 2.644 + 0.0061T where L is the diffusion length in centimeters and T is the temperature in degrees centigrade.
Date:
October 28, 1944
Creator:
Wilson, V. C.; Bragdon, E. W. & Kanner, H.
Object Type:
Report
System:
The UNT Digital Library
On the Statistics of Rod Warping
Abstract. The probability of exceeding assigned values of displacements or forces in simple rod models assembled from slugs picked at random is discussed, and some estimate for the statistical gain resulting from use of shorter slugs is obtained. The probability that a rod with self-warping will touch the top of the tube appears great enough to justify a recommendation of the use of top ribs.
Date:
December 28, 1944
Creator:
Martin, A. V. & Young, G.
Object Type:
Report
System:
The UNT Digital Library
Separation of Tuballoy From Metallic Tantalum
Report discussing a method of removing tuballoy (uranium) from metallic tantalum, which involves a double precipitation of tuballoy tetrafluoride obtained by reduction with stannous chloride.
Date:
December 28, 1944
Creator:
Wagner, E. L.; Gilpatrick, L. O. & Raeuchle, R. F.
Object Type:
Report
System:
The UNT Digital Library
The Study and Calibration of P.I.G.'s in TClâ‚„ Vapor
Report discussing a study involving P.I.G.'s (Philips Ion Gage) in TClâ‚„ vapor in an all-carbon oven to compare data to a previous study involving P.I.G.'s in air. The purpose of the investigation was to determine the best P.I.G. in TClâ‚„ vapor and obtain its calibration.
Date:
September 28, 1945
Creator:
Scott, C.; Fuller, Harold Q.; Chelius, Leo G. & Starr, C.
Object Type:
Report
System:
The UNT Digital Library
The Chlorination of TO₃
Abstract: The applicability of specific mixtures and organic chlorocarbons in general toward the chlorination of TO₃ has been tested by means of reactions is sealed glass tubes. The results show that thionyl chloride mixed with tetrachloroethylene or a bromothane of the tyoe CHBrC12 will produce TCI4 directly. This same result is produced by CBr2C12 alone.
Date:
December 28, 1945
Creator:
Gavlin, Gilbert; Hubbard, J. V. & Clewett, G. H.
Object Type:
Report
System:
The UNT Digital Library
Determination of the Molecular Weight of "Tuballoy Pentachloride"
The following report describes methods used to interpret analytical results of the molecular weight of tuballoy pentachloride.
Date:
February 28, 1946
Creator:
Goren, H. L.; Lowrie, Robert Sydney & Hubbard, J. V.
Object Type:
Report
System:
The UNT Digital Library
Metallurgical Laboratory, Physics and Metallurgy Division, Report for the Month of February 1946
Technical report with short reports from the (A) Crystal Structure Section ; (B) Mass Spectroscopy Section ; and (C) Metallurgy Section.
Date:
February 28, 1946
Creator:
Zachariasen, William H. (William Houlder), 1906-1979; Dempster, Arthur Jeffrey & Foote, Frank G. (Frank Gale), 1906-
Object Type:
Report
System:
The UNT Digital Library
Interfacial Tension Measurement on A1(NO₃)₃ - H₂O - HNO₃ - Dibutyl Cellosolve System
This report discusses two methods used for experimental determination of the interfacial tension of an immisible aqueous-organic system where the density of the organic phase is less than that of the aqueous phase. The methods discussed are the falling drop method and the Donnan modification/rising drop method.
Date:
January 28, 1947
Creator:
Turk, E. H.
Object Type:
Report
System:
The UNT Digital Library
Progress Report for the Month of February, 1947 : Contract No. W-38-094-Eng-27
This report for February, 1947 describes progress in chemical and spectrographic analysis, chemical work, phase identification, and ore dressing and pyrometallurgical studies.
Date:
February 28, 1947
Creator:
Center, E. J.; Nelson, H. R.; Pray, H. A.; Richardson, A. C. & Sullivan, J. D.
Object Type:
Report
System:
The UNT Digital Library
Tentative Procedures for Analysis of HCP Process Materials
Abstract: The procedures recommended for analysis in Department 190 Laboratories, in the Limits Control Laboratory, and in the Analytical Development Laboratories, of all process materials from the HCP cycle are presented in a stepwise manner. A description of the characteristics of each sample type along with a brief description of factors involved in the Analytical Quality Control program is included.
Date:
May 28, 1947
Creator:
Belknap, Herbert J.; Nessle, G. J. & Grimes, W. R.
Object Type:
Report
System:
The UNT Digital Library
Tables of Neutron Cross Sections
Report presenting data tables which summarize neutron cross sections for elements from hydrogen to bismuth. This data was to be available on September 1, 1947. Purpose and acknowledgements are given as well as criteria for omitting measurements and explanation of the material.
Date:
October 28, 1947
Creator:
Way, Katharine & Haines, G.
Object Type:
Report
System:
The UNT Digital Library
Progress Report for the Month of November, 1947 : Contract No. AT 30-1-Gen-202
This report for November, 1947 describes progress regarding chemical work on shales and organic precipitants for uranium.
Date:
November 28, 1947
Creator:
Bearse, A. E.; Croxton, F. C. & Sullivan, John D.
Object Type:
Report
System:
The UNT Digital Library
Preparation of Radioiron of High Specific Activity
From abstract: "A comparison has been made of methods for producing Fe59 of higher specific activity than that obtainable by irradiating natural iron in the Clinton pile. Five processes have been considered, (1) irradiation of natural iron in the Hanford piles, (2) irradiation of enriched F58 in the Clinton and Hanford piles, (3) Szilard-Chalmers enrichment using ferrocyanides in the Clinton pile, (4) collection of recoils in a phase separable from the bulk of the iron, and (5) the Co59 (n,p) Fe59 reaction in the Clinton and Hanford piles."
Date:
January 28, 1948
Creator:
Swartout, J. A. & Rice, H. M.
Object Type:
Report
System:
The UNT Digital Library
Determination of Uranium by Fluorescence
Abstract: "The uranium content of badly contaminated uranium solutions may be determined quickly using visual comparison methods to an accuracy of [...]. This accuracy may be considerably improved by employing the fluorimeter herein described. Interfering ions and their removal using liquid-liquid extractions are considered."
Date:
May 28, 1948
Creator:
Grimes, W. R. & Clark, F. E.
Object Type:
Report
System:
The UNT Digital Library
Effect of Temperature and Reactivity Changes in Operation of the Los Alamos Plutonium Reactor
The operation of the Fast Reactor is considered in terms of normal equilibrium conditions and normal shut-down. The proposed loading, control rod adjustment and subsequent "floating" operation are discussed. Safety devices and interlocks are described. Temperature and reactivity changes are examined with respect to various system failures, phase changes, and "flashing" of the reactor. Slow changes due to faulty slug cooling are also considered. The calculations were initially based upon 10 kw operation. Performance tests of the mercury system now indicate that 20-kw operation may be feasible.
Date:
May 28, 1948
Creator:
Hall, David B. & Hall, Jane H.
Object Type:
Report
System:
The UNT Digital Library
The Isolation and Properties of Curium
From introduction: "The discovery of element number 96, curium, was realized by the preparation and identification of the isotope Cm-242 by G. T. Seaborg, R. A. James and A. Ghiorso by cyclotron bombardment of Pu-239 with helium ions."
Date:
July 28, 1948
Creator:
Werner, Louis Bernard
Object Type:
Report
System:
The UNT Digital Library
Corrosion investigation
Report describing the results of corrosion tests on 68 types of materials. Generally, most materials were tested with an agitator and vapor and some were tested a 3rd way with alternate immersion.
Date:
September 28, 1948
Creator:
Long, Edward
Object Type:
Report
System:
The UNT Digital Library
Some Special Refractory Materials
Report explaining some different categories of special refractory materials. These categories of materials and their properties are discussed as well as the specific materials that fall into these categories.
Date:
September 28, 1948
Creator:
Norton, F. H.
Object Type:
Report
System:
The UNT Digital Library