Report on the Mining Methods and Appliances Used in the Anthracite Coal FieldsBoard of Commissioners, 1883 - 579 páginas |
Dentro del libro
Resultados 1-5 de 35
Página xv
... Waste in Mining and Preparing 474 474 Anthracite . Mine waste , 475 Breaker waste , 480 . Reduction of waste , 483 Utilization of waste , . 490 APPENDIX A. - Mine Laws , 493 APPENDIX B. - Glossary of Mining Terms , 525 APPENDIX C ...
... Waste in Mining and Preparing 474 474 Anthracite . Mine waste , 475 Breaker waste , 480 . Reduction of waste , 483 Utilization of waste , . 490 APPENDIX A. - Mine Laws , 493 APPENDIX B. - Glossary of Mining Terms , 525 APPENDIX C ...
Página 11
... waste from this cause will be greatly reduced . Dirt fault . This name is applied to an area of crushed coal , or to a partial or total replacement of the coal by a soft carbonaceous shale or slate with more or less coal running.
... waste from this cause will be greatly reduced . Dirt fault . This name is applied to an area of crushed coal , or to a partial or total replacement of the coal by a soft carbonaceous shale or slate with more or less coal running.
Página 28
... Waste slabs may be used for lagging , a double layer being driven over the col- lars , which should be firmly wedged down upon the legs . Round stuff three or four inches in diameter makes a better lagging than slabs ; but when the ...
... Waste slabs may be used for lagging , a double layer being driven over the col- lars , which should be firmly wedged down upon the legs . Round stuff three or four inches in diameter makes a better lagging than slabs ; but when the ...
Página 30
... waste slabs or small round stuff driven in behind the timbers . Round timber six or eight inches thick may be used for the crib - work , but square stuff is better as it can be more easily and accurately fitted . The distance between ...
... waste slabs or small round stuff driven in behind the timbers . Round timber six or eight inches thick may be used for the crib - work , but square stuff is better as it can be more easily and accurately fitted . The distance between ...
Página 105
... 2. The Winding Engine , Drums , etc. 3. Boilers and coal - bins . 4. Breaker Engine . 5. Breaker . ( 105 AC . ) 6. Culm or dirt , or waste and rock banks -The Mining Plant at the Surface Structures composing the plant,
... 2. The Winding Engine , Drums , etc. 3. Boilers and coal - bins . 4. Breaker Engine . 5. Breaker . ( 105 AC . ) 6. Culm or dirt , or waste and rock banks -The Mining Plant at the Surface Structures composing the plant,
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Otras ediciones - Ver todas
Report on the Mining Methods and Appliances Used in the Anthracite Coal ... H. M. Chance Sin vista previa disponible - 2017 |
Report on the Mining Methods and Appliances Used in the Anthracite Coal ... H. M. Chance Sin vista previa disponible - 2015 |
Términos y frases comunes
accidents acid acid gas adopted airway amount angle anthracite coal anthracite regions anticlinal Atlas Sheet average bars basin bituminous bituminous coal boiler boss bottom brake brake band brattice breaker breasts built cage carbonic carbonic acid cent coal breaker cost depth diameter dirt distance drill driven drum dump eight empty Explosions fire fire boss fire-damp friction gangway gear gunboat haulage Hazleton head-frame holes inches inclined inside iron large number Lehigh less lever lift located manway method miner mining engineers mules necessary operated outcrop outlet pass pillars plane plate Pottsville District props pumps raised rock rods roof Roof-falls rope screen seam shaft or slope sheaves shown by Fig shute side sinking slate starting friction steam sufficient surface thick timber tion tons track tunnel underground usually ventilation wheels width Wilkes-Barre winding engine wire rope Wyoming basin yards
Pasajes populares
Página 504 - ... neglect or failure aforesaid, a right of action shall accrue to the widow and lineal heirs of the person whose life shall be lost for like recovery of damages for the injury they shall have sustained.
Página 513 - The owner or agent of every coal mine shall provide at least two shafts, or slopes, or outlets, separated by natural strata of not less than one hundred and fifty feet in breadth, by which shafts, slopes, or outlets distinct means of ingress and egress are always available to the persons employed in the coal mine...
Página 508 - ... employed therein, any but experienced, competent and sober engineers ; and no engineer in charge of such engine shall allow any person, except such as may be deputed for that purpose, by the owner or agent, to interfere with it or any part of the machinery, and no person shall interfere or in any way intimidate the engineer in the discharge of his duties ; and...
Página 497 - ... and shall ascertain that the mine is free from danger, and the workmen shall not enter the mine until such examination has been made and reported, and the cause of danger, if any, be removed.
Página 499 - It shall be the duty of the inspector upon being notified as herein provided to immediately repair to the scene of the accident, and make such suggestions as may appear necessary to secure the future safety of the men ; and if the results of the explosion...
Página 503 - ... or shall handle or disturb any part of the machinery of the hoisting engine, or open a door to a mine and not have the same closed again, whereby danger is produced, either...
Página 504 - For any injury to person or property, occasioned by any willful violation« of this Act, or willful failure to comply with any of its provisions, a right of action shall accrue to the party injured, for any direct damages sustained thereby...