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. 1864 Excerpt: ...whether they are equal, either on the score of expense or ultimate efficiency, to well-constructed water wheels. In some situations favourable for their reception they are doubtless preferable in effecting a reduction of the original cost, but taking into account the conveyance of the water in pipes and other charges, ...
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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. 1864 Excerpt: ...whether they are equal, either on the score of expense or ultimate efficiency, to well-constructed water wheels. In some situations favourable for their reception they are doubtless preferable in effecting a reduction of the original cost, but taking into account the conveyance of the water in pipes and other charges, it will be found as a general rule that the difference is not considerable, and that a well-constructed water wheel of 50 years' duration is an effective and excellent substitute for the turbine. Since the first edition of this work another improved turbine, by Mr. Schiele, has been introduced, of which the following is a description. Schiele's turbine (patent of 1863) is constructed for the purpose of regulating and adjusting the supply of water to the amount of power required, and so to proportion the parts as to maintain uniformity of speed and economy in the free use of the water; to float the turbines partially in the water so as to reduce the friction on the footsteps; also to allow the dams or reservoirs to be run empty towards closing or stopping time; and to prevent the entrance of leaves or other floating substances into the working parts. This turbine, moreover, combines the advantage of being perfectly self-acting, and working up to nearly a maximum effect. In addition to the above it is stated by the constructors that, exclusive of its simplicity and comparative cheapness, the tangential entrance of the water and its radial delivery is effected with facility, and that it works freely in back water under the varied conditions of the height of the fall, as it is increased or diminished, without change of velocity when the supply is sufficiently abundant, admitting of a PART I. N wide range of speed without sensibly diminishing its u...
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New. Trade paperback (US). Glued binding. 398 p. Intended for a juvenile audience. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
