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Author : Lee Clyde Ilsley
Publisher :
Page : 8 pages
File Size : 28,83 MB
Release : 1929
Category : Coal mines and mining
ISBN :
Author : Harold Hayward Clark
Publisher :
Page : 20 pages
File Size : 35,45 MB
Release : 1915
Category : Electric motors
ISBN :
Author : H. H. Clark
Publisher : Forgotten Books
Page : 22 pages
File Size : 37,79 MB
Release : 2018-02-09
Category : Technology & Engineering
ISBN : 9780656158256
Excerpt from Permissible Explosion-Proof Electric Motors for Mine: Conditions and Requirements for Test and Approval The Bureau of Mines has applied the term explosion proof to motors constructed so as to prevent the ignition of gas surrounding the motor by any sparks, flashes, or explosions of gas or of gas and coal dust that may occur within the motor casing. 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 : American Standards Association
Publisher :
Page : 38 pages
File Size : 50,4 MB
Release : 1964
Category : Coal mines and mining
ISBN :
Author : United States. Bureau of Mines
Publisher :
Page : 112 pages
File Size : 11,97 MB
Release : 1955
Category : Mines and mineral resources
ISBN :
Author : United States. Bureau of Mines
Publisher :
Page : 12 pages
File Size : 49,82 MB
Release : 1927
Category : Electric apparatus and appliances
ISBN :
Author :
Publisher :
Page : 364 pages
File Size : 45,40 MB
Release : 1947
Category : Mineral industries
ISBN :
Author :
Publisher :
Page : 176 pages
File Size : 47,27 MB
Release : 1962
Category : Mines and mineral resources
ISBN :
Author : Arno Carl Fieldner
Publisher :
Page : 154 pages
File Size : 14,68 MB
Release : 1937
Category : Coal
ISBN :
Author : United States. Bureau of Mines
Publisher :
Page : 770 pages
File Size : 44,27 MB
Release : 1945
Category : Mine haulage
ISBN :