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Decade:
1920-1929
Collection:
Technical Report Archive and Image Library
- Oil-Shale: An Historical, Technical, and Economic Study
- Report issued by the U.S. Bureau of Mines discussing studies conducted on the development of the oil-shale industry from a historical, technical, and economic perspective. Results of the studies are presented. This report includes tables, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc66388/
- Natural Gas Manual for the Home
- Report issued by the Bureau of Mines discussing a manual written for individuals who use natural gas in the home. As stated in the introduction, "its purpose is to tell about the supply, production, and distribution of natural gas, so that the necessity for preventing waste will be better understood" (p. 1). This report includes a map, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc66394/
- Motor-Vehicle Headlighting
- Report issued by the Bureau of Standards discussing the improved illumination of night-time driving with the use of vehicle head-lighting. Methods of construction and adjustment information are presented. This report includes tables, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc66494/
- Comparison of American, British, and German Standards for Metal Fits
- Report issued by the Bureau of Standards discussing the comparison of American, British, and German metal fit standards. The comparisons between national standards of the three countries are presented and described. This report includes tables, and illustrations. digital.library.unt.edu/ark:/67531/metadc66516/
- Thermodynamic Properties of Oxygen and Nitrogen
- Report issued by the Bureau of Mines discussing the thermodynamics of oxygen and nitrogen. Properties of these elements and methods of estimating thermodynamic data are presented. This report includes tables. digital.library.unt.edu/ark:/67531/metadc66481/
- Oil Shale: An Historical, Technical, and Economic Study
- Revised report issued by the U.S. Bureau of Mines discussing studies conducted on the development of the oil-shale industry from a historical, technical, and economic perspective. Results of the studies are presented. This report includes tables, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc66392/
- Electric Brass Furnace Practice
- Report issued by the Bureau of Mines discussing the use of electric furnaces for melting brass, and other nonferrous alloys. Monetary benefits, health benefits, and other advantages of using electric furnaces are presented. Descriptions of furnaces and their operational methods are also presented. This report includes tables, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc66384/
- Leaching Nonsulphide Copper Ores with Sulphur Dioxide
- Report issued by the Bureau of Mines discussing the sulfurous acid leaching of the Southwest experiment station. Operations and analyses of the experiment station are presented. This report includes tables, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc66461/
- Recovery of Gasoline from Uncondensed Still Vapors
- Report issued by the Bureau of Mines discussing fuel recovery from uncondensed vapors. As stated in the introduction, "this paper aims to show the possibility of increasing the gasoline yield from the crude by the recovery of considerable gasoline that is now lost by remaining uncondensed" (p. 1). This report includes tables, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc66457/
- Safety in Coal Mining: A Handbook
- Report issued by the Bureau of Mines discussing safety measures adopted by mining operations in the United States. As stated in the introduction, "this report deals solely with accidents in coal mines and with the means of prevention that have been determined and officially approved by the bureau" (p. 2). This report includes tables. digital.library.unt.edu/ark:/67531/metadc38815/
- Production of High-Alumina Slags in the Blast Furnace
- Technical report issued by the U.S. Bureau of Mines discussing the results of investigations studying the effects of alumina composition on the viscosity of iron slag. digital.library.unt.edu/ark:/67531/metadc146562/
- Review of State Mine Inspector's Reports as They Relate to Accidents from Falls of Roof
- Report issued by the U.S. Bureau of Mines over state mine inspection reports from 19 U.S. states. The information in the reports includes details of accidents, locations that specific accidents occurred, and proposed remedies for prevention of future accidents. This report includes tables. digital.library.unt.edu/ark:/67531/metadc67001/
- The Gasoline Situation
- Report issued by the Bureau of Mines discussing the demands on the oil industry due to an increase in automobiles in the United States. Improvements in drilling methods and refinery practices are presented. This report includes a table. digital.library.unt.edu/ark:/67531/metadc67000/
- Salvage of Material in the Oil Industry
- Technical paper issued by the Bureau of Mines over the salvage of necessary equipment for the oil industry. The types of materials that can be salvaged are presented and discussed. This paper includes photographs, and illustrations. digital.library.unt.edu/ark:/67531/metadc66458/
- Graphical Terrane Correction for Gravity Gradient
- Technical paper issued by the Bureau of Mines over formula corrections to make up for gravity gradients. The new formulas are presented and discussed in detail. This paper includes tables, and illustrations. digital.library.unt.edu/ark:/67531/metadc66454/
- Use of Sulphite Cellulose Extract as a Tanning Material
- Report issued by the Bureau of Standards over chemicals used for tanning leather hides. As stated in the introduction: "an investigation was conducted to determine the suitability of sulfite cellulose extracts, derived from the waste liquors discharged from paper pulp mills, for use in tanning hides for the manufacture of leather" (p. 309). This report includes tables, and photographs. digital.library.unt.edu/ark:/67531/metadc66515/
- Radio-Frequency Resistance and Inductance of Coils Used in Broadcast Reception
- Technical paper issued by the Bureau of Standards over radio-frequency resistance in radio reception. As stated in the introduction, "the purpose of this paper is to present data on the radio-frequency resistance and inductance of coils within the range of frequencies used in radiotelephone broadcasting" (p. 651). This paper includes tables, and illustrations. digital.library.unt.edu/ark:/67531/metadc66512/
- Testing of Fire-Clay Brick with Special Reference to their Use in Coal-Fired Boiler Settings
- Technical paper issued by the Bureau of Standards over studies conducted on fire-clay bricks. The results of the studies are discussed. This paper includes tables, and illustrations. digital.library.unt.edu/ark:/67531/metadc66511/
- Fire Tests of Building Columns
- Technical paper issued by the Bureau of Mines over studies conducted on fire resistance on building columns. As stated in the introduction, "the purpose of this investigation is to ascertain (1) the ultimate resistance against fire, of protected and unprotected columns as used in the interior of buildings; (2) their resistance against impact and sudden cooling from hose streams when in a highly heated condition" (p. 12). This paper includes tables, illustrations. digital.library.unt.edu/ark:/67531/metadc66510/
- Tests of Large Columns with H-Shaped Sections
- Report issued by the Bureau of Standards over studies conducted on h-shaped columns. Physical and chemical tests were conducted on different types of columns. The results are presented and discussed. This report includes tables, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc66514/
- Endurance Tests of Tires
- Technical paper issued by the Bureau of Standards over studies conducted on the endurance of tires. 230 tires of 36 different brands were tested during the studies. The results of the studies are presented and discussed. This paper includes tables, and photographs. digital.library.unt.edu/ark:/67531/metadc66513/
- A New Interferential Dilatometer
- Scientific paper issued by the Bureau of Mines over development of a dilatometer. The instrument is used in tests of thermal expansion. The methods are presented and discussed. This paper includes an illustration. digital.library.unt.edu/ark:/67531/metadc66487/
- Safe Mechanical Equipment for Use in Shaft Sinking
- Technical paper issued by the Bureau of Mines over shaft sinking safety. Safe mechanical equipment and procedures are discussed. This paper includes illustrations. digital.library.unt.edu/ark:/67531/metadc66480/
- Theory of Determination of Ultra-Radio Frequencies by Standing Waves on Wires
- Scientific paper issued by the Bureau of Standards over ultra-radio frequencies. As stated in the abstract, "this paper furnishes the theoretical background for the method of frequency standardization employing short standing waves on parallel wires" (p. 487). This paper includes tables, and illustrations. digital.library.unt.edu/ark:/67531/metadc66488/
- Formulas, Tables and Curves for Computing the Mutual Inductance of Two Coaxial Circles
- Scientific paper issued by the Bureau of Standards over the mutual inductance of two coaxial circles. As stated in the abstract, "a number of examples are given to show the methods of computation by the different formulas, tables, and charts" (p. 541). This paper includes tables, and illustrations. digital.library.unt.edu/ark:/67531/metadc66489/
- Efflux of Gases Through Small Orifices
- Scientific paper issued by the Bureau of Standards over studies conducted on gas effusion rates. The methods used and the results of the studies are presented and discussed. This paper includes tables, and illustrations. digital.library.unt.edu/ark:/67531/metadc66486/
- Utilization of Manganiferous Iron Ores
- Technical paper issued by the Bureau of Mines over the use of manganese with iron ore. Different uses of the ore are presented and discussed. This paper includes tables, photographs, and illustrations. digital.library.unt.edu/ark:/67531/metadc66422/
- Recent Progress in the Thawing of Frozen Gravel in Placer Mining
- Technical paper issued by the Bureau of Mines over progress made for thawing gravel in placer mines. Different thawing tests are presented and discussed. This paper includes tables, photographs, and illustrations. digital.library.unt.edu/ark:/67531/metadc66453/
- Quarry Accidents in the United States During the Calendar Year 1919
- Technical paper issued by the Bureau of Mines over quarry accidents reported during the year of 1919. The results of the accident reports collected are presented and discussed. This paper includes tables. digital.library.unt.edu/ark:/67531/metadc66445/
- Geophysical Prospecting: Some Electrical Methods
- Technical paper issued by the Bureau of Mines over experiments in electrical methods. The methods and equipment used are presented and described. This paper includes tables, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc66442/
- Efficiencies in the Use of Bituminous Coking Coal as Water-Gas Generator Fuel
- Technical paper issued by the Bureau of Mines over the use of coking coal as a generator fuel. The results of using coking coal as fuel are presented and discussed. This paper includes tables, and illustrations. digital.library.unt.edu/ark:/67531/metadc66441/
- Change Houses in the Lake Superior Region
- Technical paper issued by the Bureau of Mines over change and wash houses in the Lake Superior area. As stated in the introduction, "this paper, with a few exceptions, presents data acquired in a survey, made by the author, of change houses in the Lake Superior region. All buildings, equipment, and practices were studied with regard for the health and welfare of the miner" (p. 1). This paper includes tables, photographs, and illustrations. digital.library.unt.edu/ark:/67531/metadc66449/
- Measuring the Variation of Ground Resistivity with a Megger
- Technical paper issued by the Bureau of Mines over tests conducted on ground resistivity with a megger. The results of the tests are presented and discussed. This paper includes tables, and illustrations. digital.library.unt.edu/ark:/67531/metadc66446/
- Tests of a Powdered-Coal Plant: A Report of Investigations at the Power Plant of the St. Joseph Lead Co., Rivermines, Missouri
- Technical paper issued by the Bureau of Mines over tests conducted at the powdered-coal plant in Rivermines, Missouri. The results of boiler tests, dryer tests, and mill tests are discussed. This report includes tables, and illustrations. digital.library.unt.edu/ark:/67531/metadc66386/
- The Manufacture of Sulphuric Acid in the United States
- Report issued by the Bureau of Mines over the production of sulfuric acid. As stated in the introduction, "the present bulletin was prepared to cover the main facts in regard to the industry in this country, including a discussion of the supplies of sulfur-bearing raw materials, the situation of the acid plants, the principal points in regard to manufacturing processes, and the uses of the acid" (p. 2). This report includes tables, illustrations, photographs, and a map. digital.library.unt.edu/ark:/67531/metadc38753/
- Dust Respirators: Their Construction and Filtering Efficiency
- Technical paper issued by the Bureau of Mines over studies on dust respirators. The development and efficiency of the respirators are discussed. This paper includes tables, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc66426/
- The Ultra-Violet and Visible Transmission of Various Colored Glasses
- Technical paper issued by the Bureau of Standards over studies conducted on transmissions of ultra-violet energy through different colored glasses. As stated in the introduction, "in the present paper are given the transmissions for the visible and ultra-violet of a large number of glasses, mostly colored, which are not used primarily for eye protection, but which are useful for various other purposes" (p. 3). This paper includes illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc66509/
- Passage of Solid Particles Through Rotary Cylindrical Kilns
- Technical paper issued by the Bureau of Mines over studies conducted on rotary kilns. As stated in the introduction, "the object of this study was to determine the factors that influence the rate of progress of crushed materials through a kiln" (p. 1). This paper includes tables, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc66410/
- Engine Service Tests of Internal-Combustion Engine Lubricating Oils Made from California Crude Petroleum
- Technical paper issued by the Bureau of Mines over testing conducted on lubricating oils on internal-combustion engines. Results of the tests conducted are presented. This paper includes tables, photographs, and illustrations. digital.library.unt.edu/ark:/67531/metadc66418/
- Typical Methods and Devices for Handling Oil-Contaminated Water from Ships and Industrial Plants
- Technical paper issued by the Bureau of Mines over oil-contaminated water. As stated in the introduction, this paper discusses "the development of suitable apparatus for handling and disposing of oil wastes in order to prevent the pollution of navigable waters" (p. 1). This report includes tables, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc66414/
- Experiments in the Use of Back Pressures on Oil Wells
- Technical paper issued by the Bureau of Mines over experiments conducted on the back pressure of oil wells. The results of the experiments are presented and discussed. This paper includes tables, photographs, and illustrations. digital.library.unt.edu/ark:/67531/metadc66390/
- Gas Masks for Gasoline and Petroleum Vapors
- Technical paper issued by the Bureau of Mines over gas masks developed for gasoline and petroleum vapors. Descriptions of different types of gas masks developed are presented. This paper includes tables, photographs, and illustrations. digital.library.unt.edu/ark:/67531/metadc66398/
- Cooperative Measurements of Radio Fading in 1925
- Scientific paper issued by the Bureau of Standards over studies conducted on radio fading. As stated in the abstract, "the series of measurements on fading were devoted to studies of fading effects during the sunset period, effects during the solar eclipse of January 24, the fading variations throughout a 24-hour day, and the effects of high transmitting power on fading" (p. 419). This paper includes tables, maps, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc66491/
- Measurements on the Thermal Expansion of Fused Silica
- Scientific paper issued by the Bureau of Standards over thermal expansion of fused silica. As stated in the abstract, "this paper gives the results of an investigation on the thermal expansion of transparent and nontransparent fused silica for various temperature ranges between -125 and +1,000 degrees Celsius. A detailed description of the apparatus and the methods used in this research and a summary of available data obtained by previous observers on the thermal expansion of fused silica are given" (p. 1). This paper includes tables, photographs, and illustrations. digital.library.unt.edu/ark:/67531/metadc66490/
- Preparation and Uses of Tar and its Simple Crude Derivatives
- Technical paper issued by the Bureau of Mines over studies of coal tars. As stated in the introduction, "this paper discusses the uses to which some of the various tars are put and shows briefly the usual methods of working up tar into some of its simple or easily prepared derivatives, for which a market can generally be found" (p. 5). This paper includes tables, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc66437/
- Low-Temperature Carbonization of Coal
- Technical paper issued by the Bureau of Mines over studies on low-temperature carbonization of coal. Methods and equipment used during the studies are discussed. This paper includes tables, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc66430/
- Experiments in Underground Communication Through Earth Strata
- Technical paper issued by the Bureau of Mines over studies in mine safety and communication. The methods and equipment used in the studies are presented and discussed. This paper includes tables, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc66438/
- Development, Mining, and Handling of Ore in Folded and Faulted Areas, Red Iron Mines, Birmingham District, Alabama
- Technical paper issued by the Bureau of Mines over mining of red iron ores in Birmingham, Alabama. As stated in the introduction, "the present paper deals more specifically with the development and handling of ore as affected by folds and faults in the ore bed, and considers changes that may be desirable or necessary in future mining practices" (p. 2). This paper includes illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc66434/
- Gas Masks for Gases Met in Fighting Fires
- Technical paper issued by the Bureau of Mines over the development of gas masks designed for fighting fires. The characteristics of the different types of masks in development are presented. This paper includes tables, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc66433/
- A Carbon Monoxide Recorder and Alarm
- Technical paper issued by the Bureau of Mines over the development of carbon monoxide alarms and recorders. Descriptions of the recording equipment are presented and discussed. This paper includes tables, photographs, and illustrations. digital.library.unt.edu/ark:/67531/metadc66402/