Report on the Mining Methods and Appliances Used in the Anthracite Coal Fields |
From inside the book
Results 1-5 of 86
Page 3
... feet wide , and no part should have a greater descent than of one yard perpendicular in ten , of a hori zontal line , nor a greater ascent than of one yard in thirty . After the road is formed pieces of timber about six feet long and ...
... feet wide , and no part should have a greater descent than of one yard perpendicular in ten , of a hori zontal line , nor a greater ascent than of one yard in thirty . After the road is formed pieces of timber about six feet long and ...
Page 6
... feet above tide water , and from 700 to 1200 feet above larger streams of the region . Over the central areas of the large basins the elevations . range from 550 to 1200 feet above tide water . The Pottsville basin has several natural ...
... feet above tide water , and from 700 to 1200 feet above larger streams of the region . Over the central areas of the large basins the elevations . range from 550 to 1200 feet above tide water . The Pottsville basin has several natural ...
Page 12
... feet in thickness , but it is uncommon to find any single bench exceeding eight or ten feet in thick- ness . While the existence of these partings is usually det rimental , it sometimes happens that a thick parting divid- ing a large ...
... feet in thickness , but it is uncommon to find any single bench exceeding eight or ten feet in thick- ness . While the existence of these partings is usually det rimental , it sometimes happens that a thick parting divid- ing a large ...
Page 22
... feet wide and from five to ten feet long , ranging up and down the hillside . This should be sunk three to six feet deep , and if no trace of coal be then found , the trench is usually abandoned , for either the drift ( soil ) is very ...
... feet wide and from five to ten feet long , ranging up and down the hillside . This should be sunk three to six feet deep , and if no trace of coal be then found , the trench is usually abandoned , for either the drift ( soil ) is very ...
Page 26
... feet at the base . height had best be made at least three feet and a half , and the cost will be no greater if it is driven somewhat higher . Its A height of four feet inside the timbers , corresponding 26 AC . REPORT OF PROGRESS ...
... feet at the base . height had best be made at least three feet and a half , and the cost will be no greater if it is driven somewhat higher . Its A height of four feet inside the timbers , corresponding 26 AC . REPORT OF PROGRESS ...
Contents
275 | |
281 | |
290 | |
297 | |
307 | |
313 | |
324 | |
328 | |
87 | |
102 | |
109 | |
113 | |
115 | |
116 | |
145 | |
151 | |
156 | |
160 | |
166 | |
170 | |
176 | |
182 | |
193 | |
199 | |
204 | |
211 | |
217 | |
227 | |
235 | |
241 | |
248 | |
253 | |
259 | |
269 | |
337 | |
344 | |
351 | |
357 | |
367 | |
369 | |
379 | |
388 | |
394 | |
403 | |
413 | |
423 | |
433 | |
439 | |
445 | |
452 | |
456 | |
459 | |
467 | |
473 | |
480 | |
488 | |
503 | |
525 | |
549 | |
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...