Page:Paper and Its Uses.djvu/34

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22
PAPER AND ITS USES

the travel of the wire, return over pulleys, serving the same purpose as the deckle, namely, to confine the pulp to the wire surface. The wire cloth is supported by a number of rollers—tube rolls—which keep the wire from oscillating, and assist the passage of the water through the wire. The end of the wire nearest the stuff-chest is kept shaking backwards and forwards to cause the

PaperAndItsUsesFig06.jpg

Fig. 6.—Front View from Strainers of 94-inch Papermaking Machine.
(Built by Bertrams Limited, Sciennes, Edinburgh.)

fibres to felt before the water has passed through the wire. The pulp passes from the strainers under a slice, which distributes the pulp evenly, over a rubber apron, on to the machine wire, and near the end of the wire will be seen a cylinder of wire above, and square boxes below the wire.