Langspaltpresse

Langspaltpresse

An extended nip press apparatus is disclosed for pressing a web of paper extending therethrough. The apparatus includes a rotatable backing roll and a press shoe having a concave surface which cooperates with the backing roll. The arrangement is such that the concave surface and the backing roll def...

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Hauptverfasser: LANGE, DAVID V, MCCARVILLE, DAVID J, LIANG, SHIHUA
Format: Patent
Sprache:ger
Schlagworte:
METHODS OF PRODUCING PAPER THEREON
PAPER-MAKING
PAPER-MAKING MACHINES
PRODUCTION OF CELLULOSE
TEXTILES
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creator LANGE, DAVID V
MCCARVILLE, DAVID J
LIANG, SHIHUA
description An extended nip press apparatus is disclosed for pressing a web of paper extending therethrough. The apparatus includes a rotatable backing roll and a press shoe having a concave surface which cooperates with the backing roll. The arrangement is such that the concave surface and the backing roll define therebetween an elongated pressing section for the passage therethrough of the web. The shoe includes an upstream portion and a device for urging the upstream portion toward the backing roll. A downstream portion extends from the upstream portion, the downstream portion being resiliently disposed relative to the upstream portion. A further device selectively urges the downstream portion toward the backing roll for controlling a pressure profile applied by the shoe to the web for inhibiting delamination of the web.
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The apparatus includes a rotatable backing roll and a press shoe having a concave surface which cooperates with the backing roll. The arrangement is such that the concave surface and the backing roll define therebetween an elongated pressing section for the passage therethrough of the web. The shoe includes an upstream portion and a device for urging the upstream portion toward the backing roll. A downstream portion extends from the upstream portion, the downstream portion being resiliently disposed relative to the upstream portion. 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The apparatus includes a rotatable backing roll and a press shoe having a concave surface which cooperates with the backing roll. The arrangement is such that the concave surface and the backing roll define therebetween an elongated pressing section for the passage therethrough of the web. The shoe includes an upstream portion and a device for urging the upstream portion toward the backing roll. A downstream portion extends from the upstream portion, the downstream portion being resiliently disposed relative to the upstream portion. A further device selectively urges the downstream portion toward the backing roll for controlling a pressure profile applied by the shoe to the web for inhibiting delamination of the web.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record>
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subjects METHODS OF PRODUCING PAPER THEREON
PAPER-MAKING
PAPER-MAKING MACHINES
PRODUCTION OF CELLULOSE
TEXTILES
title Langspaltpresse
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