Report on the Mining Methods and Appliances Used in the Anthracite Coal Fields |
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Page xi
... Rock - shute " mining , Improvements in mining methods , Page . 115 117 · 117 118 122 124 127 128 128 129 · 130 132 134 136 • 137 138 142 CHAPTER IX . - Methods of Opening and Working Breasts . Wagon breasts , 146 Buggy breasts , 149 ...
... Rock - shute " mining , Improvements in mining methods , Page . 115 117 · 117 118 122 124 127 128 128 129 · 130 132 134 136 • 137 138 142 CHAPTER IX . - Methods of Opening and Working Breasts . Wagon breasts , 146 Buggy breasts , 149 ...
Page 10
... rocks upon the predominance of hard sandstones and conglomerates at certain horizons , for these may occur at al- most any ... rock faults , " " slate faults , " etc. , which are not in reality true faults , as that term is understood by ...
... rocks upon the predominance of hard sandstones and conglomerates at certain horizons , for these may occur at al- most any ... rock faults , " " slate faults , " etc. , which are not in reality true faults , as that term is understood by ...
Page 11
... rock may be found occupying the fissure . When these indications fail , recourse is had to geological cross sections -- and these are only valuable if key - rocks can be indentified on opposite sides of the break - or to bore holes or ...
... rock may be found occupying the fissure . When these indications fail , recourse is had to geological cross sections -- and these are only valuable if key - rocks can be indentified on opposite sides of the break - or to bore holes or ...
Page 12
... Rock - fault . When the replacing material is sandstone or conglomerate this term is used . Vertical and steeply- inclined masses of rock having nearly parallel faces are sometimes encountered . Their origin has not yet been sat ...
... Rock - fault . When the replacing material is sandstone or conglomerate this term is used . Vertical and steeply- inclined masses of rock having nearly parallel faces are sometimes encountered . Their origin has not yet been sat ...
Page 24
... rock walls of the seam is presumptive evidence that the stratum contain- ing them is the floor of the seam , but if sigillariæ , fern leaves , etc. , are found , the rock is probably the roof or top rock , although both of these fossil ...
... rock walls of the seam is presumptive evidence that the stratum contain- ing them is the floor of the seam , but if sigillariæ , fern leaves , etc. , are found , the rock is probably the roof or top rock , although both of these fossil ...
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Other editions - View all
Report on the Mining Methods and Appliances Used in the Anthracite Coal ... H. M. Chance No preview available - 2017 |
Report on the Mining Methods and Appliances Used in the Anthracite Coal ... H. M. Chance No preview available - 2015 |
Common terms and phrases
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
Popular passages
Page 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.
Page 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...
Page 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...
Page 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.
Page 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...
Page 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...
Page 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...