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Coal-Mine Accidents in the United States, 1939

Description: Report compiled by the U.S. Bureau of Mines including statistics on fatal and non-fatal accidents in coal mines located in the United States as well as data regarding the various operations (e.g., number of miners employed and average production). The information is organized into tables for comparison and the text draws some overall conclusions in the summary.
Date: 1942
Creator: Adams, William W.; Geyer, L. E. & Parry, M. G.
Item Type: Report

Coal-Mine Accidents in the United States, 1940

Description: Report compiled by the U.S. Bureau of Mines including statistics on fatal and non-fatal accidents in coal mines located in the United States as well as data regarding the various operations (e.g., number of miners employed and average production). The information is organized into tables for comparison and the text draws some overall conclusions in the summary.
Date: 1942
Creator: Adams, William W.; Geyer, L. E. & Parry, M. G.
Item Type: Report

Analyses of West Virginia Coals

Description: Technical paper issued by the Bureau of Mines over studies of West Virginia coal fields. Characteristics of coals and mines are discussed. This paper includes tables, maps, and illustrations.
Date: 1942
Creator: Price, Paul H.; Heck, E. T.; Fieldner, Arno Carl; Toenges, Albert L.; Anderson, R. L.; Snyder, N. H. et al.
Item Type: Report

Metal- and Nonmetal-Mine Accidents in the United States During the Calendar Year 1940 (Excluding Coal Mines)

Description: Report published by the U.S. Bureau of Mines regarding accidents at mines located in the United States for all operations except coal mines. The report includes statistics about the number and kinds of accidents as well as information about the mining operations (i.e., number of persons employed, average amount of work performed per person, etc.).
Date: 1942
Creator: Adams, W. W. & Kolhos, M. E.
Item Type: Report

Quarry Accidents in the United States During the Calendar Year 1940

Description: Report published by the U.S. Bureau of Mines which is a compilation of accidents in quarries located in the United States with data regarding the number and kinds of accidents as well as information about the mining operations (e.g., number of men employed, kinds of quarries, amount of work performed, etc.).
Date: 1942
Creator: Adams, William & Wrenn, Virginia E.
Item Type: Report

Report of the Nonmetals Division: Fiscal Year 1942

Description: Report issued by the Bureau of Mines over the operations of the Nonmetals Division during 1942. The work done by the division is discussed. This report includes tables, illustrations, and photographs.
Date: November 1942
Creator: Ralston, Oliver C. & Stern, A. George
Item Type: Report

Use of Subaudible Noises for the Prediction of Rock Bursts

Description: Report issued by the U.S. Bureau of Mines on testing of sub-audible noises and accuracy of rock burst predictions. The history of this study, and the results of these investigations are presented. This report includes tables, graphs, illustrations, and diagrams.
Date: July 1942
Creator: Obert, Leonard & Duvall, Wilbur
Item Type: Report

Vapor-Pressure Chart for Volatile Hydrocarbons

Description: Report issued by the U.S. Bureau of Mines discussing the construction of a vapor-pressure chart. A description of the vapor-pressure chart is presented. This report includes illustrations.
Date: August 1942
Creator: Smith, R. Vincent
Item Type: Report

Stemming in Metal Mines. Progress Report 5: Comparison of Dust and Gases Produced from Blasting Charges of Dynamite in Drill Holes, in Bombs, and in Mud-Cap Shots

Description: Report issued by the U.S. Bureau of Mines on the experiments conducted on stemming in metal-mines. As stated in the introduction, "its purpose is to compare the amount of dust and gases produced as a result of blasting charges of dynamite (1) in drill holes, (2) in bombs, and (3) in mud-cap or adobe shots" (p. 1). Dust and gas concentrations gathered from the experiments are listed. This report includes tables.
Date: December 1942
Creator: Johnson, John A. & Agnew, Wing G.
Item Type: Report

Review of the Heaving-Shale Problem in the Gulf Coast Region

Description: Report issued by the U.S. Bureau of Mines over the ongoing issue of heaving-shale in the Gulf Coast area. The operations and potential causes of incompetent heaving-shale are listed. This report includes tables, and a map.
Date: March 1942
Creator: Wade, Gustav
Item Type: Report

Some Haulage and Hoisting Hazards in Western Mines

Description: Report issued by the U.S. Bureau of Mines discussing safety hazards in western mines. Mine hoisting and haulage accidents are presented. Accident prevention is also discussed. This report includes tables.
Date: December 1942
Creator: Denny, E. H. & Humphrey, H. B.
Item Type: Report

Stemming in Metal Mines. Progress Report 3: Relative Advantages and Disadvantages of Different Types of Stemming and No Stemming When Used with 60 Percent Ammonia Gelatin Dynamite at the Mount Weather Testing Adit

Description: Report issued by the U.S. Bureau of Mines on the progress made in metal-mine stemming. Previous reports have been presented impartially, or under different procedures. This report contains updated progress results from current procedures and mine conditions. The report includes tables, and illustrations.
Date: February 1942
Creator: Johnson, John A.; Agnew, Wing G. & Mosier, McHenry
Item Type: Report

Annual Report of the Explosives Division, Fiscal Year 1942

Description: Report issued by the U.S. Bureau of Mines on the annual report of work conducted by the Explosives Division during the fiscal year of 1942. Descriptions of testing projects and operations are presented. This report includes tables, graphs, illustrations, and photographs.
Date: December 1942
Creator: Huff, Wilbert James
Item Type: Report

Annual Report of the Mining Division, Fiscal Year 1942

Description: Report issued by the U.S. Bureau of Mines on the annual work conducted by the Mining Division during 1942. Descriptions of projects and operations during the fiscal year are listed. This report contains tables, and photographs.
Date: October 1942
Creator: Jackson, Charles F.
Item Type: Report

Multiple-Shift Mechanical Mining in some Bituminous-Coal Mines: Progress Report 4. Extraction of Pillars with Mechanized Equipment

Description: Report issued by the U.S. Bureau of Mines discussing "some methods and practices of mining coal mechanically where operations are conducted on more than one shift" (p. 3). Descriptions of mines, and mining methods are presented. This report includes tables, and illustrations.
Date: December 1942
Creator: Toenges, Albert L.; Maize, Earl R. & Jones, Frank A.
Item Type: Report

Marketing Mineral Pigments

Description: Report issued by the U.S. Bureau of Mines discussing the use of mineral pigments. The importance of pigments is presented along with a description of import and export trends of minerals. This report includes tables.
Date: August 1942
Creator: Harness, Charles L.
Item Type: Report

Sponge Chromium

Description: From Introduction: "There follows discussion of the reduction processes suitable for preparing sponge chromium from the chlorides, and finally the question of special methods required to insure the production of a high-purity product is investigated. This order is a natural and chronological one as well as being suited to the needs of presenting an analytic picture of the experimental work and its results and proposals engendered."
Date: 1942
Creator: Maier, C. G.
Item Type: Report

Seismic Effects of Quarry Blasting

Description: From Object of Bulletin: "The object of this bulletin is to review briefly the previous publications so that the reader may follow the progress of the research and to supply the technical details supporting the conclusions reached."
Date: 1942
Creator: Thoenen, J. R. & Windes, S. L.
Item Type: Report

Wind-Tunnel Development of Ailerons for the Curtiss XP-60 Airplanem Special Report

Description: An investigation was made in the LWAL 7- by 10-foot tunnel of internally balanced, sealed ailerons for the Curtiss XP-60 airplane. Ailerons with tabs and. with various amounts of balance were tested. Stick forces were estimated for several aileron arrangements including an arrangement recommended for the airplane. Flight tests of the recommended arrangement are discussed briefly in an appendix, The results of the wind-tunnel and flight tests indicate that the ailerons of large or fast airplanes may be satisfactorily balanced by the method developed.
Date: September 1, 1942
Creator: Rogallo, F. M. & Lowry, John G.
Item Type: Report

Tests of an NACA 66,2-420 Airfoil of 5-Foot Chord at High Speed, Special Report

Description: This report covers tests of a 5-foot model of the NACA 66,2-420 low-drag airfoil at high speeds including the critical compressibility speed. Section coefficients of lift, drag, and pitching moment, and extensive pressure-distribution data are presented. The section drag coefficient at the design lift coefficient of 0.4 increased from 0.0042 at low speeds to 0.0052 at a Mach number of 0.56 (390 mph at 25,000 ft altitude). The critical Mach number was about 0.60. The results cover a Reynold number range from 4 millions to 17 millions.
Date: September 1, 1942
Creator: Hood, Manley J. & Anderson, Joseph L.
Item Type: Report