Search Results

open access

Resistance of Materials to Attack by Liquid Metals

Description: From Forward: "As their contribution, the Metallurgy Division of Argonne National Laboratory was asked to assemble all available unclassified and declassifiable data on the resistance of materials to attack by liquid metals. The resulting collation of data is contained in this report."
Date: July 1950
Creator: Kelman, LeRoy R.; Wilkinson, Walter D. & Yaggee, Frank L.
Partner: UNT Libraries Government Documents Department
open access

Review of Literature on Dusts

Description: From Introduction: "Problems connected with incidence, effects, determination, and control of dusts are still much before the public, although more information is available to the layman than when Bulletin 400, of which this publication is a revision, was issued in 1937. This revision includes data that have accumulated since 1937 and some that appeared previous thereto but were not available to the authors at that time."
Date: 1950
Creator: Forbes, J. J.; Davenport, Sara J. & Morgis, Genevieve G.
Partner: UNT Libraries Government Documents Department
open access

Contributions to the Data on Theoretical Metallurgy: [Part] 11. Entropies of Inorganic Substances: Revision (1948) of Data and Methods of Calculation

Description: From Introduction: "The present bulletin also contains all the pertinent explanatory matter that appeared in its predecessors. Thus, it retains the same dual purpose of assembling the available values of the entropies at 298.16 degrees K of the elements and inorganic compounds and giving enough explanation of methods of calculating entropies to make the results comprehensible."
Date: 1950
Creator: Kelley, K. K.
Partner: UNT Libraries Government Documents Department
open access

Information on the Prevention of Quarry Accidents

Description: From Introduction: "The primary objective of this paper is to discuss the hazards and furnish a list of recommendations for the safe operation of the quarries and related works. The second objective is to describe and illustrate safety devices, practices, and quarrying methods."
Date: 1950
Creator: Harrington, D.; Worcester, A. W. & East, J. H., Jr.
Partner: UNT Libraries Government Documents Department
open access

Buried Valley of the Susquehanna River: Anthracite Region of Pennsylvania

Description: Report issued by the U.S. Bureau of Mines regarding a buried valley area (a deposit of clay, sand, and gravel) around the Susquehanna River in the anthracite region of Pennsylvania, near the city of Wilkes-Barre. According the the introduction, "The purpose of this report is to furnish data on the buried valley of the Susquehanna River that will be useful in solving the anthracite mine-water problem" and "This report (a) discusses the physical characteristics and the influence of the buried valley of the Susquehanna River on anthracite mining in the Wyoming Valley area of the Northern field, (b) correlates pertinent data relating to the buried valley, (c) presents accurate contour maps showing the position of the top of solid rock underlying the water-soaked valley-fill deposits in the buried valley, and (d) presents cross sections at regular intervals across the buried valley showing the irregularities in trend and bottom as well as the thickness, configuration, and nature of the materials composing the water-bearing valley-fill deposits" (p. 3).
Date: 1950
Creator: Ash, S. H. (Simon Harry), b. 1889
Partner: UNT Libraries Government Documents Department
open access

Carbonizing Properties: Pocahontas Number 6, Davy Sewell, and Fire Creek Coals from West Virginia and Upper and Lower Kittanning and Upper and Lower Freeport Coals from Pennsylvania

Description: From Forward: "The value of this survey of the carbonizing properties of American coals by a standard method lies in the comparability of the results on different coals. It must recognized that no standard laboratory method of carbonization, even on a large unit, can yield results that exactly duplicate those obtained in ovens and retorts. The commercial results vary with the type of oven or retort. Allowance must be made for such differences in interpreting the BM-AGA test results in terms of commercial plants."
Date: 1950
Creator: Davis, J. D.; Reynolds, D. A.; Brewer, R. E.; Wolfson, D. E.; Naugle, B. W. & Birge, G. W.
Partner: UNT Libraries Government Documents Department
open access

Inundated Anthracite Reserves: Eastern Middle Field of Pennsylvania

Description: From Scope of Report: "In this report one major unwatering project was developed. Three pools that inundate considerable tonnages of anthracite reserves are close enough together to be unwatered by some centralized system. Three alternative plans were studied to estimate the cost of each."
Date: 1950
Creator: Ash, S. H. (Simon Harry), b. 1889; Kynor, H. D.; Fatzinger, R. W.; Davies, B. S. & Gilbert, J. C.
Partner: UNT Libraries Government Documents Department
open access

Proceedings: Fifth International Conference of Directors of Mine Safety Research

Description: From Reinstatement of Fifth Conference: "The program of the Fifth Conference is reproduced below. Of the time allotted for each paper, about half was used for presentation and half for discussion. Out of this developed the program that is the subject of this publication."
Date: 1950
Creator: Greenwald, H. P.
Partner: UNT Libraries Government Documents Department
open access

The Isosynthesis

Description: From Preface: "The paper contains data on the development of the catalyst for the isosynthesis, on the effect of temperature and pressure of operation, and on the composition of the products of the reaction. In the last section, experimental evidence and speculations concerning the mechanisms of the isosynthesis are discussed."
Date: 1950
Creator: Pichler, Helmut & Ziesecke, Karl-Heinz
Partner: UNT Libraries Government Documents Department
open access

Carbonizing Properties: West Virginia Coals from the Eagle, Number 2 Gas, Pocahontas Number 3, and Pocahontas Number 4 Beds

Description: From Introduction and Summary: "This paper gives results of an investigation of the composition and carbonizing properties of coals from Pocahontas No.3 bed, Lake superior No.4 mine, McDowell County, W.Va.; Eagle bed, Cannelton No.3 mine, Fayette County, W.Va; and No.2 Gas bed, Cannelton No.100 mine, Kanawha County, W. Va."
Date: 1950
Creator: Davis, J. D.; Reynolds, D. A.; Brewer, R. E.; Ode, W. H.; Naugle, B. W.; Wolfson, D. E. et al.
Partner: UNT Libraries Government Documents Department
open access

Bibliography of Pressure Hydrogenation (In Three Parts): [Part] 1. Review and Compilation of the Literature on Pressure Hydrogenation of Liquid and Solid Carbonaceous Materials

Description: From Introduction: This review contains abstracts of the technical literature and patents dealing material application of the Bergius and related processes for the hydrogenation, under greater than atmospheric pressures, of liquid and solid carbonaceous materials such as coal, lignite, their distillation and extraction products, pitches and tars, and petroleum and its distillation residues."
Date: 1950
Creator: Wiley, J. L. & Anderson, H. C.
Partner: UNT Libraries Government Documents Department
open access

Comparison of BM-AGA and Slot-Oven Experimental Methods of Carbonization, with Results for Eleven Coals

Description: From Introduction and Summary: "However, with the completion and satisfactory performance of an experimental vertical slot oven of 500-pound capacity at the University of Illinois Geological Survey Laboratory, the opportunity to directly compare BM-AGA coke with coke made by two-sided heating became available and the necessary test apparatus was installed. This report compares the results obtained by the two methods."
Date: 1950
Creator: Davis, J. D.; Reynolds, D. A.; Wolfson, D. E. & Birge, G. W.
Partner: UNT Libraries Government Documents Department
open access

Characterization of Tar Acids from Coal-Hydrogenation Oils

Description: From Introduction: "The purpose of this investigation was to separate and identify as many of the principal phenolic compounds produced by the mild hydrogenation of Pittsburgh-bed (Bruceton) coal as possible and to determine with the greatest possible accuracy the proportions in which they are present."
Date: 1950
Creator: Woolfolk, E. O.; Golumbic, C.; Friedel, R. A.; Orchin, Milton & Storch, H. H.
Partner: UNT Libraries Government Documents Department
open access

Preparation Characteristics of Some Coals Available for the Synthetic Liquid Fuels Industry

Description: From Introduction: "The first major assignment was the sampling and testing of a series of typical American coals deemed to be suitable for hydrogenation based on early research work conducted by the Bureau of Mines. The first series of tests has been completed and is reported in this paper."
Date: 1950
Creator: Fraser, Thomas; Crentz, William L. & Barrett, Orrin T.
Partner: UNT Libraries Government Documents Department
open access

United States Earthquakes, 1950

Description: Report discussing earthquake activity in the United States during 1950. The report is broken down by regions and has sections for specific earthquakes.
Date: 1950
Partner: UNT Libraries Government Documents Department
open access

Further Experimental Studies of Area Suction for the Control of the Laminar Boundary Layer on a Porous Bronze NACA 64A010 Airfoil

Description: Note presenting a low-turbulence wind-tunnel investigation of an NACA 64A010 airfoil with a porous surface to determine the reduction in section total-drag coefficient that might be obtained at large Reynolds numbers by the use of area suction. This report primarily deals with additional tests of the same airfoil model equipped with a porous skin of lower porosity.
Date: May 1950
Creator: Braslow, Albert L. & Visconti, Fioravante
Partner: UNT Libraries Government Documents Department
open access

Fabrication and Properties of Hot-Pressed Molybdenum Disilicide

Description: Report presenting an investigation of hot-pressed molbdenum disilicide bodies produced by industrial processes at a temperature of 2950 degrees and a pressure of 3000 pounds per square inch. Results regarding the short-time tensile strength, stress-rupture data, compression strength, air-corrosion resistance, hardness, coefficient of linear thermal expansion, thermal conductivity, and density are provided.
Date: May 26, 1950
Creator: Long, Roger A.
Partner: UNT Libraries Government Documents Department
open access

Analytical determination of local surface heat-transfer coefficients for cooled turbine blades from measured metal temperatures

Description: From Summary: "Procedures for applying these analytical methods to experimentally measured blade-metal temperatures are presented. Data are presented for the leading and trailing edge of a symmetrical water-cooled blade to illustrate the validity of the methods for those portions of the blade. In addition to the application to turbine blades, the methods can be applied to any heat-transfer apparatus having a profile that can be approximated by the shape discussed."
Date: April 10, 1950
Creator: Brown, W. Byron & Esgar, Jack B.
Partner: UNT Libraries Government Documents Department
open access

Tabulated Pressure Coefficients and Aerodynamic Characteristics Measured in Flight on the Wing of the Douglas D-558-I Airplane for a 1 g Stall, a Speed Run to a Mach Number of 0.90, and a Wind-Up Turn at a Mach Number of 0.86

Description: "Tabulated pressure coefficients and aerodynamic characteristics are presented unanalyzed for six spanwise stations on the right wing of the Douglas D-558-I research airplane (BuAero No. 37972). The data were obtained in a 1 g stall at subcritical Mach numbers, in a speed run to a Mach number of 0.90 and in a wind-up turn at a Mach number of 0.86" (p. 1).
Date: December 15, 1950
Creator: Keener, Earl R. & Pierce, Mary
Partner: UNT Libraries Government Documents Department
open access

Wind-Tunnel Investigation of a 0.6-Scale Model of Hughes MX-904 Tail Surface at Supersonic Speeds: Tail Attached to a Segment of the Foreshortened Body

Description: "An investigation has been made of a partial-span model of the tail surface designed for use on the Hughes Falcon (MX-904) missile to determine the aerodynamic characteristics of the tail and elevator including elevator hinge moment. Data obtained at Mach numbers of 1.62 and 1.96 in the Langley 9- by 12-inch supersonic blowdown tunnel are presented for the condition where the tail was attached to a segment of the foreshortened body" (p. 1).
Date: May 4, 1950
Creator: Conner, D. William & Guy, Lawrence D.
Partner: UNT Libraries Government Documents Department
open access

Photomicrographic Investigation of Spontaneous Freezing Temperatures of Supercooled Water Droplets

Description: "A photomicrographic technique for investigating seupercooled water droplets has been devised and. used. to determine the spontaneous freezing temperatures of seupercooled water droplets of the size ordinarily found. in the atmosphere. The freezing temperatures of 4527 droplets ranging from 8.75 to 1000 microns in diameter supported on a platinum surface and 571 droplets supported on copper were obtained. The average spontaneous freezing temperature decreased with decrease in the size of the droplets" (p. 1).
Date: July 1950
Creator: Dorsch, Robert G. & Hacker, Paul T.
Partner: UNT Libraries Government Documents Department
open access

Wind-Tunnel Investigation of a 1/6-Scale Model of the Bumblebee XPM Missile at High Subsonic Speeds

Description: Report presenting an investigation of a model of the Bumblebee XPM missile to determine the causes of booster-fin failures for a range of Mach numbers and Reynolds numbers. The cause of fin failure was determined to be the launching shoes that caused the missiles to trim at increasingly negative angles of attack. Additional testing with wing spoilers and alternate booster fins was also conducted.
Date: December 11, 1950
Creator: Nelson, Warren H.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen