Scientific American Supplement, No. 821

Sep. 26, 1891

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Author: Various Authors
Published: 1891
Language: English
Wordcount: 43,984 / 140 pg
Flesch-Kincaid Reading Ease: 59.6
LoC Category: Q
Downloads: 378
Added to site: 2004.11.15
mnybks.net#: 9280
Genres: Science, Periodical
Excerpt

in motion and each piece of rag passes repeatedly between the knives. The case protects the mass from being thrown out by the centrifugal force. The work of beating the rags is ended in a few hours, and the ensuing thin paste is drawn off into the pulp chest, this being a square box lined with lead.

From the pulp chest it passes to the form of the paper machine. This form consists of an endless fine web of brass wire, which revolves around rollers. The upper part of this form rests upon a number of hollow copper rollers, whereby a level place is formed. The form revolves uniformly around the two end rollers, and has at the same time a vibratory motion, by which the pulp running upon the form is spread out uniformly and conducted along, more flowing on as the latter progresses. The water escapes rapidly through the close wire web. In order to limit the form on the sides two endless leather straps revolve around the rollers on each side, which touch with their lower parts the form on both sides and confine

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