Download or read book Approved Explosion Proof Coal Cutting Equipment Classic Reprint written by L. C. Ilsley and published by Forgotten Books. This book was released on 2016-10-13 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Approved Explosion-Proof Coal-Cutting Equipment Direct-current motors. And alternating-current motors of the slip ring type when running usually give off electric arcs or ashes that will ignite fire damp. Other motors that have no moving electric contacts may become dangerous through accident, deterioration, or neglect. Auxiliary apparatus such as fuses, switches, rheostats, and controllers may arc, ash, or become heated to such a degree that fire damp can be ignited. Such equipment is still more dangerous when worn or out of repair. In the United States the development of apparatus for use in gaseous mines has been associated largely with coal-cutting equip ment run by electricity. This is undoubtedly due to the use of such equipment at the face of the mine workings, where the chance of igniting fire clamp is necessarily greatest. One American manu facturer built a coal-cutting equipment of the totally inclosed type for use in fire damp atmospheres in 1903. Another built similar equipment with special protective devices in 1906, for export. 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."
Download or read book Approved Explosion proof Coal cutting Equipment written by Horace Wadsworth Gillett and published by . This book was released on 1914 with total page 1038 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Approved Explosion proof Coal cutting Equipment written by United States. Bureau of Mines and published by . This book was released on 1914 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Approved Explosion proof Coal cutting Equipment written by Lee Clyde Ilsley and published by . This book was released on 1920 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Explosion Proof Coal Cutting Equipments Approved Prior to Jan 1 1923 Supplementary to Bulletin 78 written by E. J. Gleim and published by . This book was released on 1923 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Explosion proof Coal cutting Equipments Approved Prior to Jan 1 1923 written by Ernest J. Gleim and published by . This book was released on 1923 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Permissible Coal cutting Equipment Approved Prior to July 1 1932 written by L. C. Ilsley and published by . This book was released on 1934 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book State Regulations Governing Explosion proof Type Electric Motors in Coal Mines written by Lee Clyde Ilsley and published by . This book was released on 1929 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Permissible Coal cutting Equipment Approved Prior to July 1 1932 written by United States. Bureau of Mines and published by . This book was released on 1935 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book First Series of Coal Dust Explosion Tests in the Experimental Mine Classic Reprint written by George S. Rice and published by Forgotten Books. This book was released on 2018-02-13 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from First Series of Coal-Dust Explosion Tests in the Experimental Mine Soon after the Organization Of the technologic branch Of the United States Geological Survey, J. A. Holmes, then chief Of the branch, concluded that for the solution Of various problems relating to the causes and prevention of mine explosions it would be best to carry on large-scale tests in a mine rather than in a surface gallery. The idea Of utilizing the underground passage of a mine for making explosion experiments did not at first meet with general approval among investigators in this country or abroad. Many thought a mine passage was not a proper place in which scientific tests could be conducted, as great difficulty in controlling conditions was expected. However, after all arguments for and against such an investigation had been carefully considered, plans for Opening an experimental mine were definitely adopted by the Bureau Of Mines in 1910, and an allotment Of funds was made to carry out the project. The first endeavor was to find an existing mine suitable for the purpose, but the mines Offered by owners were either worked out, were wet, had poor roofs, or presented complications Of various kinds, so that it was finally decided to Open a mine if a site could be Obtained having natural conditions that would fill the various requirements. 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.
Download or read book The Coal Question written by W Stanley Jevons and published by Franklin Classics. This book was released on 2018-10-09 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Importing Into the United States written by U. S. Customs and Border Protection and published by . This book was released on 2015-10-12 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explains process of importing goods into the U.S., including informed compliance, invoices, duty assessments, classification and value, marking requirements, etc.
Download or read book Mine Power Systems written by Lloyd A. Morley and published by . This book was released on 1981 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sophie s World written by Jostein Gaarder and published by Farrar, Straus and Giroux. This book was released on 2007-03-20 with total page 735 pages. Available in PDF, EPUB and Kindle. Book excerpt: A page-turning novel that is also an exploration of the great philosophical concepts of Western thought, Jostein Gaarder's Sophie's World has fired the imagination of readers all over the world, with more than twenty million copies in print. One day fourteen-year-old Sophie Amundsen comes home from school to find in her mailbox two notes, with one question on each: "Who are you?" and "Where does the world come from?" From that irresistible beginning, Sophie becomes obsessed with questions that take her far beyond what she knows of her Norwegian village. Through those letters, she enrolls in a kind of correspondence course, covering Socrates to Sartre, with a mysterious philosopher, while receiving letters addressed to another girl. Who is Hilde? And why does her mail keep turning up? To unravel this riddle, Sophie must use the philosophy she is learning—but the truth turns out to be far more complicated than she could have imagined.
Download or read book Safety and Health in Opencast Mines written by International Labour Office and published by International Labour Organization. This book was released on 1991 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Opencast mines may not be as dangerous as underground mines, but they should respect a wide range of provisions in order to minimise safety and health risks to workers and people living nearby. This code is intended for people responsible for occupational safety and health in opencast mining.
Download or read book Injury Experience in Coal Mining written by and published by . This book was released on 1949 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Devil Is Here in These Hills written by James Green and published by Open Road + Grove/Atlantic. This book was released on 2015-02-03 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: “The most comprehensive and comprehendible history of the West Virginia Coal War I’ve ever read.” —John Sayles, writer and director of Matewan On September 1, 1912, the largest, most protracted, and deadliest working-class uprising in American history was waged in West Virginia. On one side were powerful corporations whose millions bought armed guards and political influence. On the other side were fifty thousand mine workers, the nation’s largest labor union, and the legendary “miners’ angel,” Mother Jones. The fight for unionization and civil rights sparked a political crisis that verged on civil war, stretching from the creeks and hollows of the Appalachians to the US Senate. Attempts to unionize were met with stiff resistance. Fundamental rights were bent—then broken. The violence evolved from bloody skirmishes to open armed conflict, as an army of more than fifty thousand miners finally marched to an explosive showdown. Extensively researched and vividly told, this definitive book about an often-overlooked chapter of American history, “gives this backwoods struggle between capital and labor the due it deserves. [Green] tells a dark, often despairing story from a century ago that rings true today” (Pittsburgh Post-Gazette).
