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Author: Charles George Warnford Lock
Publisher:
ISBN:
Category : Metallurgy
Languages : en
Pages : 516
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Author: Charles George Warnford Lock
Publisher:
ISBN:
Category : Metallurgy
Languages : en
Pages : 516
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Book Description
Author: Charles G Warnford 1853-1909 Lock
Publisher: Franklin Classics Trade Press
ISBN: 9780344876684
Category :
Languages : en
Pages : 476
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Book Description
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: Charles G. Warnford 1853-1909 Lock
Publisher: Nabu Press
ISBN: 9781294887423
Category :
Languages : en
Pages : 478
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Book Description
This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.
Author: C. G. Warnford Lock
Publisher: Forgotten Books
ISBN: 9781333180416
Category : Technology & Engineering
Languages : en
Pages : 478
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Book Description
Excerpt from Mining and Ore-Dressing Machinery: A Comprehensive Treatise Dealing With the Modern Practice of Winning Both Metalliferous and Non-Metalliferous Minerals Were we to divide the radius 30 ft. Into six equal parts, and calculate the angles at each point, we should find them correspond nearly with the means of those given by Smeaton and others. Mills are generally made with four strong wooden arms or radii, fixed firmly in a central socket, and steadied and stiffened by tie-rods, connecting their extremities together, and with a projecting strut on the central boss. The width of each sail at the extreme should be about half of the radius, so that in a mill 60 ft. Diameter, or 30 ft. Radius, each sail would be 15 ft. Wide at the extreme. The part of the arm next the centre for about 71; of the radius, that is, 5 ft. In the case supposed, is not fitted with sails because the surface there is so little effective, as well from its short leverage as from its obstructing the wind reflected from the head of the turret behind it. The width at the inner end should be of the radius, or 10 ft. The surface of each sail is therefore 312% sq. Ft., and the total of the four is 312% X 4 1250 sq. Ft. The total area of the circle 60 ft. In diameter is somewhat above 2800 sq. Ft., so that not half the surface of the circle is clothed with sails. There would be no disadvantage in extending the surface by making the sails broader or more numerous, until it became of the whole surface. Beyond this additional sail-surface is disadvantageous, for it appears to obstruct the free passage of the currents re ected from the sails, and thus clogs their motions. It is found advantageous to arrange the surface of the sail somewhat in the proportions of Fig. 2, which represents the front View of one sail. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works."
Author: Arthur Watts Allen
Publisher:
ISBN:
Category : Ore-dressing
Languages : en
Pages : 266
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Author:
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 452
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Author: Edward Henry Davies
Publisher:
ISBN:
Category : Machinery
Languages : en
Pages : 686
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Author:
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 456
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Author: United States. Business and Defense Services Administration
Publisher:
ISBN:
Category : Commercial products
Languages : en
Pages : 160
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Author:
Publisher:
ISBN:
Category : Industrial priorities
Languages : en
Pages : 208
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