Download book Engineering Volume 25

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Download book Engineering Volume 25

Engineering Volume 25 by Anonymous

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Author: Anonymous
Number of Pages: 924 pages
Published Date: 13 Sep 2013
Publisher: Rarebooksclub.com
Publication Country: United States
Language: English
ISBN: 9781236951502
Download Link: Engineering Volume 25
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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. 1878 edition. Excerpt: ...Palace, the works of the new Continental Hotel, in the Rue de Rivoli, and other places. The Palace of the Trocadero is reared on vast and massive foundations, some carried down as far as 60 ft., others resting on the bed rock nearly at the surface. Vhen the stone underlying the Trocadero was quarried, the place was left in about the worst possible condition for subsequent building operations, and the transformation at a later date of these quarries into a steep but smooth park, produced a deceptive surface, which caused the actual expenditure on the palace to exceed the estimate by a very large sum. The underground portion of the work is arched, and these arcades follow around the central hall, and along each wing, forming a convenient place for laying the great mains for feeding the grand cascade, but they are apparently useless for any other purpose. Underneath the hall and below the level of these subterranean arches is a. chamber containing the engines and boilers employed to ventilate the hall, and which partly used at present for driving the Gramme machines in connexion with the electric lights before mentioned. The two towers which flank the Main Hall will each of them contain a hydraulic lift rising to a height of 203 ft. 6 in. One of these is being made by MAI. Edoux et Cie., of Paris, and the other by MM. Bonn and Lustrement, also of Paris. The plunger carrying the platform is in each case l5 in. in diameter, and the platforms will be sufficiently large to accommodate each of them forty persons at a time. These platforms will be guided by four columns at the angles, and through each of them will pass weights to balance the platform and the plunger; these lifts are not yet completed, and the work of sinking the...

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