An Account of the Mode of Draining Land

An Account of the Mode of Draining Land

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1801 edition. Excerpt: ...the mine is likewise adapted for the purpose, the use to which it may be converted is still more advantageous, by driving machinery to bring out the minerals, and also for working an engine pump, for clearing the mine of subterraneous water, flow-' ing from the cavities of the rocks that are met with in working.-His Grace the Duke of Buccleuch s coal-works, near Langholm, in Dumfries-shire, are a striking example of this, and ofthe superior powers of water and machinery when properly combined, where a command of the former can be obtained, and when the latter is construfled on proper principles, and conducted with that care and ingenuity which are necessary in such undertakings. J It frequently occurs, in working quarries of lime or freestone, that, at a certain depth, part of the rock containing water is hit on, whereby the quarry is soon so filled with water, as to put a stop to working it deeper, where the best of the stone lies. The common remedy in such cases is, either to erect a wind-mill pump, to draw out part of the water (For the whole cannot be taken away by this means), or to open a new quarry adjoining to the last, which at the same depth meets with the like obstruction, .or to bringup a very deep and often expensive.cut, under the level of the water, from the nearest declivity. By the following method, however, all quarries of limestone, freestone, marl, 8:0. liable to such an obstruction, may be completely cleared of water at little expence; and the drain, at the same time, will servea double purpose, by drying the wet ground, which, in consequence of the spring contained in the rock, is found adjoining to it. Immediately under the rock, commonly lies a bed of strong retentive clay, that upholds all the water received by..
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Product details

  • Paperback | 48 pages
  • 188.98 x 246.13 x 2.54mm | 104.33g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236600231
  • 9781236600233