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Treatise on Mills and Mill Work Volume 1 (Paperback) Loot Price: R493 Discovery Miles 4 930
Treatise on Mills and Mill Work Volume 1 (Paperback): William Fairbairn
Treatise on Mills and Mill Work Volume 1 (Paperback): William Fairbairn

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Treatise on Mills and Mill Work Volume 1 (Paperback)

William Fairbairn

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Loot Price R493 Discovery Miles 4 930

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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. 1861 Excerpt: ...a a and the diagonal braces b b are keyed. The arms are 2 inches, and the braces If inches in diameter. D represents the buckets, with the shuttle which regulates the admission of the water, and which is made to slide downwards, F the termination of the stone breast, and E the tail-race. This wheel, it will be seen, is arranged as a low-breast. The principle of the construction of the buckets is more clearly shown on an enlarged scale in fig. 3, Plate III., the soleplate being abandoned and the bucket plates bent round and prolonged upwards so as to overlap one another, leaving an opening, indicated by the arrows, for the escape of the inclosed air. The bucket plates are connected together by tubular ferules, or stays, through which a rivet is passed, and riveted on each side. The wheel should always, as in this plate, be placed above the tail water, and not, as in the older forms of wheels (fig. 112), be carried down to the level of the tail-race floor; and the breast of wood, iron, or stone, but usually the latter, which is of so much importance for low falls in retaining the water on the wheel, should break off about ten inches from the extremity of a vertical diameter of the wheel. In fact, the benefits of this form of breast and tail-race are so great they should be strictly carried out where it is desirable to make effective use of the fall. In high-breast wheels of twenty-five feet in diameter, and upwards, the breast is not required, as the buckets having narrower openings, and their lips extended nearer to the back of the following buckets, retain the water longer on the wheel. In this case the loss from spilling constitutes too small a percentage of the power to compensate for the expense of a lofty and closefitting breast. In some cases the breas...

General

Imprint: Rarebooksclub.com
Country of origin: United States
Release date: March 2012
First published: March 2012
Authors: William Fairbairn
Dimensions: 246 x 189 x 4mm (L x W x T)
Format: Paperback - Trade
Pages: 76
ISBN-13: 978-1-130-31768-8
Barcode: 9781130317688
Categories: Books
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LSN: 1-130-31768-4

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