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Author: Clarence Hall
Publisher: Forgotten Books
ISBN: 9781333884840
Category : Technology & Engineering
Languages : en
Pages : 326
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Book Description
Excerpt from Tests of Permissible Explosives 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. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Clarence Hall
Publisher: Forgotten Books
ISBN: 9781333884840
Category : Technology & Engineering
Languages : en
Pages : 326
Get Book Here
Book Description
Excerpt from Tests of Permissible Explosives 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. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Spencer P. Howell
Publisher: Forgotten Books
ISBN: 9780267123575
Category : Technology & Engineering
Languages : en
Pages : 22
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Book Description
Excerpt from Permissible Explosives: Tested Prior to January 1, 1917 S. P. Howell. 1915. 16 pp. Technical paper 125. The sand test for determining the strength of detonators. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Clarence Hall
Publisher: Forgotten Books
ISBN: 9781390345605
Category : Technology & Engineering
Languages : en
Pages : 20
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Book Description
Excerpt from Permissible Explosives: Tested Prior to January 1, 1914 Technical paper 4. The electrical section of the Bureau of Mines, its purpose and equipment, by H. H. Clark. 1911. 12 pp. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Spencer P. Howell
Publisher: Forgotten Books
ISBN: 9780666580511
Category : Technology & Engineering
Languages : en
Pages : 22
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Book Description
Excerpt from Permissible Explosives Tested Prior to March 1, 1915 Technical paper 52. Permissible explosives tested prior to March 1, 1913, by Clarence Hall. 1913. 11 pp. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: United States. Bureau of Mines
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: C. E. Bichel
Publisher: Forgotten Books
ISBN: 9781332024230
Category :
Languages : en
Pages : 80
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Book Description
Excerpt from New Methods of Testing Explosives Until about fifteen years ago black' powder and dynamite were almost the only explosives used in practical mining. The danger entailed by their use in workings where gas was met with, had, however, been generally recognised, and the admitted expediency of abolishing their employment in fiery mines or seams presently brought about a material change of affairs. Today, the use Of gunpowder has almost entirely ceased in collieries troubled with gas, and even in quarries it has been largely abandoned. Dynamite has perhaps stood its ground rather better, but this material, too, has had to yield wherever pit-gas or dangerous quantities Of coal-dust abounded, both in fact being almost universally superseded nowadays by so-called safety explosives. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Christian George Storm
Publisher: Forgotten Books
ISBN: 9781397305411
Category : Science
Languages : en
Pages : 100
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Book Description
Excerpt from The Analysis of Permissible Explosives As has been noted, a large proportion of the explosives which have been placed on the bureau's permissible list are of this type, the list' on June 1, 1915, including 61 ammonium-nitrate explosives out of a total of 133 explosives; 14 other ammonium-nitrate explosives for merly on the permissible list have been withdrawn. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Clarence HALL (and HOWELL (Spencer P.))
Publisher:
ISBN:
Category :
Languages : en
Pages : 313
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Book Description
Author: Clarence Hall
Publisher:
ISBN:
Category : Blasting
Languages : en
Pages : 12
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Book Description
Author: George St. John Perrott
Publisher:
ISBN:
Category : Explosives
Languages : en
Pages : 10
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Book Description
