Reports of the Inspectors of Coal Mines of the Anthracite Coal Regions of Pennsylvania for the Year ... |
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Allegheny county Armstrong county blast boilers breaker broken by fall bruised burned Cambria county caught Cause of Accident Centre county Clarion county Clearfield county Coal and Coke Coal and Iron Creek cubic feet drainage Drifton Driver entry explosion of gas fall of coal fall of rock fall of slate fall of top fatal accidents Fatally injured Fayette county feet of air feet per minute fell fire foreman furnace haulage Hill Hudson Canal Company injured by fall Instantly killed Iron Company James Jefferson county Jermyn John Killed by fall Laborer Lackawanna Leg broken Leg fractured Location-County Luzerne county Mahanoy City Miner mule Name of Colliery non-fatal accidents number of persons Number of tons persons employed powder pump Railroad Ridge roof seam shaft colliery shaft mines slope Somerset county Thomas tons of coal top coal Total number township tunnel Valley Coal Company ventilation wagons Washington county Westmoreland county Wilkes-Barre William
Popular passages
Page 24 - When a workman is about to fire a blast, he shall be careful to notify all persons who may be in danger therefrom, and shall give sufficient alarm, so that any person or persons who may be approaching shall be warned of the danger. Rule 34.
Page 279 - In a safe condition for persons to travel therein, throughout their whole length so as to obtain, in cases of emergency, a second way for egress from the workings. No part of said workings shall at any time be driven more than three hundred feet In advance of the aforesaid passageways, except entries, airways or other narrow work, but should an opening to the surface be provided from the interior of the mine, the passageways aforesaid may be made and maintained therefrom into the working part of...
Page 26 - From and after the passage of this act, it shall not be lawful to place any boiler or boilers for the purpose of generating steam under, nor nearer than one hundred (100) feet to, any coal breaker or other structure, in which persons are employed in the preparation of coal : Provided, That this section shall not apply to breakers already erected or that are in course of erection.
Page 171 - A series of careful experiments were made with a forced draught, obtained in one case by a fan and in the other by a steam jet, which showed : — First. — That the ashes produced by a steam jet were never as low in carbon as those produced by the fan ; that is, an appreciably larger per cent. of the carbon was utilized by the fan-blast. This appears to be due to the fact that when the carbon in the ash over the grate is reduced to a certain point the steam dampens it somewhat, and it ceases to...
Page 172 - ... almost all cases it is accompanied by a very high percentage of carbon in the ash, which analysis showed, in some cases, reached 58 per cent. Unless special precautions are taken to prevent it, a large portion of the fine coal runs down through the grate. When the culm gets red hot it acts almost like dry sand and works its way into the ash-pit, thus increasing largely the percentage of carbon. Where coal has to be transported any distance, the value of the culm at the mines being very small,...
Page 289 - ... persons employed in and about the anthracite coal mines of Pennsylvania, and for the protection and preservation of property connected therewith...
Page 171 - ... practical, or at least it is very difficult, to burn the smaller sizes of coal without the steam jet on account of the clinkering. This effect of steam on clinkering is probably due to the fact that the steam, to a certain extent, moistens the ash close to the grate and prevents the ash from reaching there as high a temperature as it would with dry air. It is also probable that the decomposition of the steam into carbonic oxide and hydrogen, which takes place to a certain extent, and which, of...
Page 275 - Washington councy comment-ing at White Hall Station on the line of the Wheeling division of the Baltimore and Ohio Railroa'd, thence along said railroad adjacent to and south of the same to the state line between Pennsylvania and West Virginia, thence along said state line to the extreme southwestern corner of Greene county, thence easterly along the boundary line...
Page 183 - As the thoroughly ignited coal passes slowly over the second compartment (where the air pressure is a maximum) it burns briskly, and then slowly passes over the third compartment, where the air pressure is less and better suited to the combustion of the thinner layer of partly consumed coal. The bed continues to diminish in carbon and to be subjected to less blast, until finally the hot ashes are cooled off...
Page 172 - This is due to the fact that the iron pyrites occur generally in thin layers or incrustations on the coal. These thin layers are broken off and pulverized in the preparation and handling of the coal, and are therefore found to a much greater extent in the very small coal. It is, of course, well known that the presence of iron pyrites in fuel is very undesirable, as it generates sulphurous acid and has a tendency to destroy the grates or other iron work around the boilers, besides in many cases increasing...