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Nondestructive Vibratory Testing of Airport Pavements: Volume 1, Experimental Test Results and Development of Evaluation Methodology and Procedure

Description: From abstract: Conventional direct sampling methods of airport pavement evaluation interfere with aircraft operations; therefore, an evaluation procedure based on nondestructive vibratory testing was developed.
Date: September 1975
Creator: Green, James L. & Hall, Jim W.
Partner: UNT Libraries Government Documents Department

Molybdenum; Its Ores and their Concentration with a Discussion of Markets, Prices, and Uses

Description: From Scope and Purpose of Investigation: "The direct purpose of the bulletin is, on the one hand, to prove to possible consumers of molybdenum that the element is not as rare as commonly supposed, and that this country possesses many deposits of low-grade ore from which large supplies may be derived, and on the other hand, to prove to present and prospective producers of molybdenum that there is a latent market for their product in the alloy-steel trade, which needs only the assurance of steady supplies for a considerable development."
Date: 1916
Creator: Horton, Frederick W.
Partner: UNT Libraries Government Documents Department

Lurgi Process: Use for Complete Gasification of Coals with Steam and Oxygen Under Pressure

Description: From Introduction: "The United States Department of the interior, Bureau of Mines, is not only interested in coal gasification for the manufacture of gaseous fuels but also in the raw gas as a possible source of materials for the Synthetic Liquid Fuels program."
Date: 1951
Creator: Cooperman, J.; Davis, J. D.; Seymour, W. & Ruckes, W. L.
Partner: UNT Libraries Government Documents Department

Measuring the Temperature of Gases in Boiler Settings

Description: Scope of Report: "The bulletin presents the results of a series of measurements of the temperatures of gases in the most common types of boilers, discusses the errors occurring in the usual methods of measurement, and gives directions for making and using inexpensive thermocouples to determine flue-gas temperatures."
Date: 1918
Creator: Kreisinger, Henry & Barkley, J. F.
Partner: UNT Libraries Government Documents Department

Commercial Deductions from Comparisons of Gasoline and Alcohol Tests on Internal-Combustion Engines

Description: From Introduction: "The following report is a summary of the commercial results which were obtained from 2,000 tests conducted by technologic branch of the United States Geological Survey at St. Louis, Mo., and Norfolk, Va., in 1907 and 1908, under the technical supervision of R.H. Fernald, engineer in charge of the producer-gas section."
Date: 1911
Creator: Strong, Robert M.
Partner: UNT Libraries Government Documents Department

Permissible Methane Detectors

Description: From Function of Methane Detectors: "The object of this paper is to present to the mining public the results of the permissibility tests of the detectors that have been approved, also to give the results of a series of tests conducted to determine their practicability."
Date: 1930
Creator: Hooker, A. B.; Fene, W. J. & Currie, R. D.
Partner: UNT Libraries Government Documents Department

Creep and Drying Shrinkage of Lightweight and Normal-Weight Concretes

Description: From Scope of Investigation: "The work reported here is part of a continuing program concerning the long-term volume changes in concretes made from lightweight and normal-weight aggregates. The creep, drying-shrinkage, and strength data presented are for concretes made with 24 expanded shale lightweight aggregates and 5 natural, normal-weight aggregates. These aggregates were from widely separated geographical locations and were to be representative samples of aggregates being used in the production of structural concretes."
Date: March 4, 1964
Creator: Reichard, T. W.
Partner: UNT Libraries Government Documents Department

Carbonizing Properties of American Coals: Index of Coals Tested by the Bureau of Mines

Description: Introduction; "The purpose of this paper is to present in collected and sequential form such a list of the coals that have been studied in the carbonization-section labatories of the Bureau of Mines for their carbonizing properties and yields of coke and coal chemicals."
Date: 1954
Creator: Brown, R. L.; Davis, J. D.; Reynolds, D. A. & Smith, F. W.
Partner: UNT Libraries Government Documents Department

Coal Composition, Coal Plasticity, and Coke Strength

Description: From Abstract: "Results of linear correlations of two to four variables by the least-squares method are presented. The variables includes 63 parameters representing coal composition, coal plasticity, and coke strength. The composition parameters are based on chemical analyses; the plasticity parameters, on three plastometer and dilatometer tests and four miscellaneous tests; and cok-strength parameters, on three ASTM indices."
Date: unknown
Creator: Wu, W. R. K. & Frederic, W. H.
Partner: UNT Libraries Government Documents Department

The Coke Industry of the United States as Related to the Foundry

Description: From Introduction: "The present bulletin, published by the Bureau of Mines because of the analyzing and testing of fuels have been transferred from the Geographical Survey to the Bureau of Mines, briefly reviews the status of the coke industry, some features of practice in the use of coke in the foundry, the probable happenings of a cupola heat, and the reasons for modifying charging practice so that a particular coke can be used to best advantage."
Date: 1910
Creator: Moldenke, Richard
Partner: UNT Libraries Government Documents Department

Dewatering of Mineral Waste Using the Flocculant Polyethylene Oxide

Description: From Abstract: "This bulletin summarizes the results of Bureau of Mines investigations of a technique for dewatering clay waste that consists of flocculation with polyethylene oxide (PEO)followed by screening of the resulting flocs. Results of the laboratory tests and small and large scale field tests are described."
Date: unknown
Creator: Schelner, B. J.; Smelley, Annie G. & Stanley, D. A.
Partner: UNT Libraries Government Documents Department

Deterioration in the Heating Value of Coal During Storage

Description: From Introduction: "The detailed report is presented in this bulletin, which gives full account of the tests and the analytical data covering a period of five year's storage. Data of somewhat similar experiments for shorter periods with gas coal from the Pittsburgh bed, with Pocahontas coal on the Isthmus of Panama, with Sheridan, Wyo., subbituminous coal, which used for railroad and other purposes in the West, are included."
Date: 1917
Creator: Porter, Horace C. & Ovitz, F. K.
Partner: UNT Libraries Government Documents Department

Commercial Possibilities of the Texas-New Mexico Potash Deposits

Description: From Introduction Results of Test: "Among the domestic potash resources which were brought to the attention of the country during and after the war but were not utilized as a source of potash, although they indicated that they might furnish the cheap potash desired, were the potash deposits occurring with the think rock-salt formations of western Texas and southeastern New Mexico."
Date: 1930
Creator: Wroth, James S.
Partner: UNT Libraries Government Documents Department

Electric Switches for use in Gaseous Mines

Description: From Introduction: "The purpose of the investigation discussed in this bulletin, one of a series dealing with the use of electricity in mines, was to study the various means and methods used to confine the flashes that occur when a switch carrying electric current is opened."
Date: 1913
Creator: Clark, H. H. & Crocker, R. W.
Partner: UNT Libraries Government Documents Department

Diatomites of the Pacific Northwest as Filter-Aids

Description: From Introduction Purpose of Investigation: "To determine some of the physical and chemical properties of known Pacific Northwest diatomites, the present investigation was started in 1938 by the Bureau of Mines in cooperation with the College of Mines, University of Washington.
Date: 1944
Creator: Skinner, Kenneth G.; Dammann, Arthur A.; Swift, Roy E.; Eyerly, George B. & Shuck, Gordon R., Jr.
Partner: UNT Libraries Government Documents Department

Electric Furnaces for Making Iron and Steel

Description: From Introduction: "Some results of the work already done are presented in this bulletin, which gives a historical review of the development of electric furnaces for making iron and steel, and discusses the problems that remain to be solved in the use of electric furnaces for the smelting of iron ores and the production of pig iron at a profit on a commercial scale."
Date: 1914
Creator: Lyon, Dorsey A. & Keeney, Robert M.
Partner: UNT Libraries Government Documents Department

Coal-Washing Investigations: Methods and Tests

Description: From Introduction: "The investigations described in this bulletin are confined to a study of the washing characteristics of bituminous coals. The washing characteristics of coals from many of the most important coal-producing fields of the Eastern and Central States were examined."
Date: 1929
Creator: Yancey, H. F. & Fraser, Thomas
Partner: UNT Libraries Government Documents Department

Coals Available for the Manufacture of Illuminating Gas

Description: From Introduction General Statement: "The investigations were so directed as to permit the testing of coals from different parts of the united States. The results show that certain coals from which good yields of gas had been expected can not be considered as available for illuminating-gas manufacture, whereas other coals give promise and should investigated further. The data contained in this report are the outcome of the cooperative work at the laboratory mentioned during parts of the years 1908 and 1909."
Date: 1911
Creator: White, A. H. & Barker, Perry
Partner: UNT Libraries Government Documents Department

Five Hundred Tests of Various Coals in House-Heating Boilers

Description: From Introduction Purpose of Tests: "The tests on which this report is based were made during or before 1917 to obtain a measure of relative heating value and burning characteristics of the various fuels when burned in domestic heating furnaces with attendance comparable to that given ordinarily. In all, 184 different shipments of coals, of which 172 were from various mines in this country, were burned in four low-pressure heating boilers; 534 individual tests were made. The primary object of tests was to report on each individual coal, but it was considered advisable to summarize the results to if any general deductions could be made. This report gives some of the results of this study in condensed form."
Date: 1928
Creator: Nicholls, P.; Flagg, S. B. & Augustine, C. E.
Partner: UNT Libraries Government Documents Department

Features of Producer-Gas Power-Plant Development in Europe

Description: From Introduction: "Because the limited time available would not permit a careful inspection, much less a detailed study of all the plants visited, the writer has not aimed in this bulletin to present a comprehensive review of producer-gas power-plant development in Europe, or even to give such conclusions as might be drawn from what he saw, but has simply described some interesting features of European practice that attract the attention of even a casual observer."
Date: 1911
Creator: Fernald, R. H.
Partner: UNT Libraries Government Documents Department

Basic Magnetic Quantities and the Measurement of the Magnetic Properties of Materials

Description: From Introduction: "The work of the Magnetic Measurements Section of the National Bureau of Standards includes (1) testing of specifically prepared test specimens intended for use as standards for checking magnetic testing apparatus (2) investigation and development of magnetic testing apparatus (3) calibration of mutual inductors, test coils, and instruments for measuring magnetic fields, and (4) investigations in the field of magnetics such as studies of phenomena associated with nuclear magnetic resonance or the selection and testing of materials suitable to be used as standards of magnetic susceptibility."
Date: May 21, 1962
Creator: Sanford, Raymond L. & Cooter, Irvine L.
Partner: UNT Libraries Government Documents Department

Fuel-Efficiency Tests on Batch Oil Stills

Description: From Introduction Need for Tests: "This bulletin presents in condensed form the results of these tests and the deductions made from them. The tests were made at two refineries, designated here at plant 1 and plant 2."
Date: 1929
Creator: Kreisinger, Henry; Argyle, W. R. & Rice, W. E.
Partner: UNT Libraries Government Documents Department