Author: Horace Wadsworth Gillett
Publisher:
ISBN:
Category : Brass industry and trade
Languages : en
Pages : 1038
Book Description
Approved Explosion-proof Coal-cutting Equipment
Author: Horace Wadsworth Gillett
Publisher:
ISBN:
Category : Brass industry and trade
Languages : en
Pages : 1038
Book Description
Publisher:
ISBN:
Category : Brass industry and trade
Languages : en
Pages : 1038
Book Description
Approved Explosion-proof Coal-cutting Equipment
Author: United States. Bureau of Mines
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Approved Explosion-proof Coal-cutting Equipment
Author: Lee Clyde Ilsley
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 53
Book Description
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 53
Book Description
Approved Explosion-Proof Coal-Cutting Equipment (Classic Reprint)
Author: L. C. Ilsley
Publisher: Forgotten Books
ISBN: 9781333935177
Category : Technology & Engineering
Languages : en
Pages : 80
Book Description
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."
Publisher: Forgotten Books
ISBN: 9781333935177
Category : Technology & Engineering
Languages : en
Pages : 80
Book Description
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."
Permissible Coal-cutting Equipment Approved Prior to July 1, 1932
Author: L. C. Ilsley
Publisher:
ISBN:
Category : Coal-mining machinery
Languages : en
Pages : 136
Book Description
Publisher:
ISBN:
Category : Coal-mining machinery
Languages : en
Pages : 136
Book Description
State Regulations Governing Explosion-proof Type Electric Motors in Coal Mines
Author: Lee Clyde Ilsley
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 8
Book Description
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 8
Book Description
Explosion-Proof Coal-Cutting Equipments Approved Prior to Jan. 1, 1923. (Supplementary to Bulletin 78).
Author: E. J. Gleim
Publisher:
ISBN:
Category : Coal
Languages : en
Pages : 7
Book Description
Publisher:
ISBN:
Category : Coal
Languages : en
Pages : 7
Book Description
Explosion-proof Coal-cutting Equipments Approved Prior to Jan. 1, 1923
Author: Ernest J. Gleim
Publisher:
ISBN:
Category : Coal and coal mining
Languages : en
Pages : 14
Book Description
Publisher:
ISBN:
Category : Coal and coal mining
Languages : en
Pages : 14
Book Description
Monthly Statement of Coal-mine Fatalities in the United States
Author:
Publisher:
ISBN:
Category : Coal mine accidents
Languages : en
Pages : 238
Book Description
Publisher:
ISBN:
Category : Coal mine accidents
Languages : en
Pages : 238
Book Description
Technical Paper
Author: United States. Bureau of Mines
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 1134
Book Description
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 1134
Book Description