Spons Encyclopaedia Of The Industrial Arts Manufactures And Commercial Products

Author : Edward Spon
Publisher : Rarebooksclub.com
ISBN 13 : 9781230136486
Total Pages : 496 pages
Book Rating : 4.1/5 (364 download)

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Download or read book Spons' Encyclopædia of the Industrial Arts, Manufactures, and Commercial Products written by Edward Spon and published by Rarebooksclub.com. This book was released on 2013-09 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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. 1882 edition. Excerpt: ...at the ends, and separated by intervals of 0-004-0 008 in. This press allows the filter-surface to be changed more easily than in the Champonnois press, without removing the cylinders; but it is not so simple. Cuvelier's press, constructed by Lobbedez, has been at work for some years at Louez, near Arras, and gives 28-30 per cent, of pulp retaining very little sugar. Pie'ron's system has been adopted at the Montigny factory: the preparatory press treats nearly 2000 tons of beetroot per 24 hours; the ordinary first press, nearly 800 tons; and the second press, over 1500 tons. Sufficient has now been said to illustrate the principles and essential features of continuous presses for separating the juice from the pulp of mashed beets. Examples might be multiplied almost indefinitely. Depulpers.--The term ' depulpers" has been applied to a class of apparatus rendered necessary by tho inability of the ordinary filters to completely remove tho fine pulpy matters from the juice. They are really nothing more than effective mechanical filters. That of Loynes, made by the Cie. de Fives-Lille, is largely used in other industries besides beet-Bugar making. Those of Mariolles and Mesnard are constructed by Cail. Centrifugals.--Centrifugal hydro-extracting machines, which are described under Cane-sugar and Refining, have been tried for separating beet-juice from the pulp of the grated roots. In practice, however, they are incapable of extracting more than 60-65 per cent, of the juice under the most favourable conditions, and consequently they are not superior to hydraulic presses. Their use in this sphere is virtually a thing of the past. Maceration.--The shortcoming of the expression processes gave an impetus to experiment in other directions, and...