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Liquid-Oxygen Explosives

Description: From Introduction: "The purpose of this bulletin is to examine the advantages and disadvantages of L. O. X., both in the light of experimental investigations by the Bureau of Mines and the results in actual blasting, and to discuss the probable future fields of usefulness for this novel type of explosive."
Date: 1932
Creator: Perrott, G. St. J. & Tolch, N. A.
Partner: UNT Libraries Government Documents Department

Fire-Retardant Treatments of Liquid-Oxygen Explosives

Description: From Introduction Present Investigation: "The scope of the investigation was limited to study of the effects of fire-retardant treatments on the resistance to ignition, physical characteristics, and practical hazards of handling the liquid-oxygen explosive prepared from the granular carbonaceous absorbent mentioned, from wrappers of a triple-filled canvas, and from a liquid oxygen of standard high purity."
Date: 1940
Creator: Denues, A. R. T.
Partner: UNT Libraries Government Documents Department

Regulation of Explosives in the United States: with Especial Reference to the Administration of the Explosives Act of October 6, 1917, by the Bureau of Mines

Description: From Origin of Federal Explosives Act, October 6, 1917: " A competent force from the Bureau of Mines was then assigned to study the laws and ordinances of countries, States, and municipalities in which lawas and ordinances regulating explosives have been enacted, and especially to ascertain how these laws had been modified by the necessities of the existing state of war, and, also, wherein the proposed law might conflict with or overlap the jurisdiction of existing laws. This incomplete enumeration of the peace-time uses of explosives shows that the quantity consumed is large. A more definite conception is given by the following statistics of production, to which is added statistics for exportation that disclose something of the effect of war on the explosives industry."
Date: 1921
Creator: Munroe, Charles E.
Partner: UNT Libraries Government Documents Department

The Use of Permissible Explosives

Description: From Preface: "The present bulletin is printed as a supplement to Bulletin 17 and is intended primarily for coal miners, especially for those working in fields where inflammable gas or coal dust may cause disastrous mine explosions. The bulletin is issued by the Bureau of Mines in the hope that it may prove helpful in lessening accidents due to the use of explosives, and in particular may aid in preventing mine explosions, many of which have been caused by the use of improper explosives."
Date: 1912
Creator: Rutledge, J. J. & Hall, Clarence
Partner: UNT Libraries Government Documents Department

Physical Testing of Explosives at the Bureau of Mines Explosives Experiment Station, Bruceton, Pennsylvania

Description: From Introduction: "The methods of making the physical tests of explosives recorded here are based upon the results of more than 20 years of experience of the staff of the explosives division of the Bureau of Mines at the Pittsburgh testing station and at its successor, the Explosives Experiment Station, Bruceton, Pa. The methods are described in unusual detail to permit repetition that will duplicate, as nearly as possible, the precise manner in which they have been performed in the past and to reduce differences in technique to a minimum."
Date: 1931
Creator: Munroe, Charles E. & Tiffany, J. E.
Partner: UNT Libraries Government Documents Department

The Selection of Explosives used in Engineering and Mining Operations

Description: From General Statement: "This bulletin deals with the characteristic features of the principal explosives used in mining and engineering operations, and especially with the tests that show the suitability of different classes of explosives for different kinds of work."
Date: 1913
Creator: Hall, Clarence & Howell, Spencer P.
Partner: UNT Libraries Government Documents Department

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
Partner: UNT Libraries Government Documents Department

Physical Testing of Explosives at the Bureau of Mines Explosives Experiment Station, Brueceton, Pa.

Description: Report discussing methods of making physical tests of explosives. The methods are described in unusual detail to permit repetition that will duplicate as nearly as possible the precise manner in which they have been performed in the past and to reduce differences in technique to a minimum.
Date: 1931
Creator: Munroe, Charles E. & Tiffany, J. E.
Partner: UNT Libraries Government Documents Department

High Explosive Crater Studies: Tuff

Description: Abstract: "Spherical charges of TNT, each weighing 256 pounds, were exploded at various depths in tuff to determine apparent crater dimensions in a soft rock. No craters were obtained for depths of burst equal to or greater than 13.3 feet. It was deduced that rock fragments were sufficiently large that charges of greater magnitude should be employed for crater experiments intended as models of nuclear explosions."
Date: April 1961
Creator: Murphey, Byron F.
Partner: UNT Libraries Government Documents Department

A Technique for Delineating Subsurface Fracture Zones Resulting from High-Yield Detonations

Description: From summary: Site investigations were conducted at two locations, the sites of the DUGOUT and CHARLIE events, at the Nevada Test Site for the purpose of evaluating the dynamic in situ technique as a means of determining the boundaries of craters produced by explosive detonations.
Date: February 1967
Creator: Ballard, Robert F., Jr.
Partner: UNT Libraries Government Documents Department

Tests of Permissible Explosives

Description: From Introduction: "A copy of the test requirements and the names of explosives on the permissible list dated March 1, 1913, are appended to this bulletin. An explosive is considered permissible for use in coal mines when it is similar in all respects to the sample that passed the tests required by the bureau, and when it is used in accordance with the conditions prescribed."
Date: 1913
Creator: Hall, Clarence & Howell, Spencer P.
Partner: UNT Libraries Government Documents Department

Coal-Dust Explosion Tests in the Experimental Mine, 1919 to 1924, Inclusive

Description: From Introduction and Summary: "This bulletin describes the third series of coal-dust explosion tests by the Bureau of Mines in its experimental mine and covers a period from 1919 to the end of 1924, inclusive. A few related tests made in 1925 are also included."
Date: 1927
Creator: Rice, George S.; Paul, J. W. & Greenwald, H. P.
Partner: UNT Libraries Government Documents Department

A Primer on Explosives for Coal Miners

Description: From Introduction: "Much of the information in this primer has been obtained from experiments conducted by the technologic branch of the United Sates Geological Survey at the mining experiment station at Pittsburgh, Pa. These investigations have shown the recent development of a new type of short-flame explosives, which can be used with greater safety than black powder in mines where there is dangerous gas or inflammable dust, because the flame from the explosion of black powder lasts from 2,500 to 3,500 times as long does the flame from these newer explosives and is therefore more likely to ignite the gas or dust in such mines."
Date: 1911
Creator: Munroe, Charles E. & Hall, Clarence
Partner: UNT Libraries Government Documents Department

Explosion Tests of Pittsburgh Coal Dust in the Experimental Mine, 1925 to 1932, Inclusive

Description: From Introduction and Summary: "The first of these was Bulletin 353, dealing with the tests of rock-dust barriers; the second is the present paper, which reports tests made to determine the effect on the explosibility of Pittsburgh coal dust of altering conditions under which the tests were made; the third, dealing with tests of dust prepared from approximately 20 coals taken from beds in mines in different parts of the United States, will follow after the completion of testing in progress at the time of writing."
Date: 1933
Creator: Rice, George S.; Greenwald, H. P. & Howarth, H. C.
Partner: UNT Libraries Government Documents Department

A Primer on Explosives for Metal Miners and Quarrymen

Description: From introduction: "This bulletin aims to give the metal miner and the quarryman information similar to that given the coal miner in Bulletin 17. Inflammable gas or dust is seldom, if ever, found in quarries or metal mines, and the danger from using explosives there is less than in coal mines; but, as the figures show, the number of men killed and injured yearly in accidents caused by explosives proves the need of both miners and mine officials striving to see that none but proper explosives are used and these are used properly."
Date: 1915
Creator: Munroe, Charles E. & Hall, Clarence
Partner: UNT Libraries Government Documents Department

The Use of Permissible Explosives in the Coal Mines of Illinois

Description: From Introduction: "The report deals briefly with the dangers of black blasting powder now in such common use in coal mining. It discusses the development of permissible explosives and their introduction into Illinois coal mines and points out the characteristic differences between permissible explosives and black blasting powder. "
Date: 1917
Creator: United States. Bureau of Mines.
Partner: UNT Libraries Government Documents Department

The Ignition of Fire Damp by Explosives: A Study of the Process of Ignition by the Schlieren Method

Description: From Introduction: "The rupture of this paper by the explosion provided by the explosion provided rapid release for the pressure developed. The charge of explosive was placed in the bore of a cannon communicating with the gallery through a central hole in the steel plate. The apparatus is shown in Figures 1 and 2, which are reproduced from Perrott and Gawthrop's paper. In the event of a nonignition the flame from the explosive only was recorded."
Date: 1932
Creator: Shepherd, W. C. F.
Partner: UNT Libraries Government Documents Department