Transactions of the American Institute of Mining, Metallurgical and Petroleum Engineers Volume 66

Transactions of the American Institute of Mining, Metallurgical and Petroleum Engineers Volume 66

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1922 edition. Excerpt: ...in 1808. As some preparation has always been necessary to make it ready to burn, the preparation of anthracite must date back over a hundred years. Two vital factors have determined to a large extent the degree and the method of anthracite preparation. These are, first, the character of the beds worked and the methods by which they are mined and, second, the equipment used and practices followed in the burning of the coal. It is not the intention here to go deeply into these phases of preparation as a paper of no mean length could be prepared on the history of either. Rather, the intention here is to point out the main considerations and to show the influence they have exerted on the preparation of anthracite. MINING Mmrrons am) THEIR Rnnurron TO PREPARATION In the beginning of the nineteenth century, the coal beds were virgin with the possible exception of some outcroppings that had been worked, to a slight extent, by the Indians. It is known that the American aborigines had a knowledge of the use of this fuel, because when the Wyoming Valley was purchased from them, in 1754, they mentioned the fact that, by selling the land, they would lose their coal. Real mining of anthracite began about 1808 when Judge Jesse Fell, of Wilkes-Barre, discovered that the "common stone coal of the valley" could be burned in an open grate. For some years thereafter mining was conducted near the surface. The working places were driven narrow; only the best of the coal was selected and the remainder was left in the ground. Only the lumps could be used, as no market exist-ed for other sizes. As time passed, however, it became necessary either to go farther into the ground or to widen the working places. When these places were widened, falls of roof...show more

Product details

  • Paperback | 290 pages
  • 189 x 246 x 15mm | 522g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236760980
  • 9781236760982