Dewatering apparatus for longitudinal wire papermaking machines

Details Dewatering apparatus for longitudinal wire papermaking machines Dewatering apparatus for longitudinal wire papermaking machines

D - Textiles, Paper

21

F

92/14.1

D21F 1/00 (2006.01) D21F 1/48 (2006.01) D21F 3/00 (2006.01)

Patent

CA 1172483

File: 10740/J/P Attorney's docket 6986 CAN INVENTORS: ALFRED BUBIK, HANS DAHL, HERBERT HOLIK, R?DIGER KURTZ and WERNER SEIDER INVENTION: DEWATERING APPARATUS FOR LONGITUDINAL WIRE PAPERMAKING MACHINES ABSTRACT OF THE DISCLOSURE A dewatering apparatus contains a longitudinal wire and an additional wire which is guided, conjointly with the longitudinal wire, along a section of such longitudinal wire over a domed or arched surface. This domed or arched surface is formed, for instance, by the jacket or outer surface of a dewatering cylinder arranged within the wire loop of the longitudinal wire. The longitudinal wire is provided with a headbox and extends forwardly and after the dewatering apparatus essentially in a wire plane, above which upwardly rises the domed surface. Both of the wires are guided out of the wire plane over a dewatering shoe arranged within the wire loop of the additional wire towards the domed surface and from such --if desired over a deflection coil arranged beneath the wire plane-- again towards the wire plane, where both wires separate from one another. Due to this arrangement there is realized a guiding of both wires which improves the dewatering action and is extensively independent of the elevational position of the wire plane, and at the same time affords a constructional simplification of the papermaking machine.

405616

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