AN EXTENDED NIP PRESS APPARATUS

An extended nip press apparatus (10) is disclosed for pressing water from a web of paper (W). The press includes a blanket (18) which defines an endless loop and a first and a second lateral edge (20, 22). Edge seals (24) cooperate with the edges (20, 22) for sealing the edges (20, 22) of the blanke...

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Bibliographic Details
Main Authors LANGE, DAVID V, FILZEN, SCOTT E
Format Patent
LanguageEnglish
French
Published 11.06.1996
Edition6
Subjects
METHODS OF PRODUCING PAPER THEREON
PAPER-MAKING
PAPER-MAKING MACHINES
PRODUCTION OF CELLULOSE
TEXTILES
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Summary:An extended nip press apparatus (10) is disclosed for pressing water from a web of paper (W). The press includes a blanket (18) which defines an endless loop and a first and a second lateral edge (20, 22). Edge seals (24) cooperate with the edges (20, 22) for sealing the edges (20, 22) of the blanket (18) against egress of lubricant disposed between the shoe (14) and the blanket (18). The edge seals (24) include a head (26) rotatably secured to a frame (F) and an extension (28) which extends from the head (26). The extension (28) cooperates with the first edge (20) of the blanket (18) and defines a duck's bill configuration in a cross-ma-chine sectional view such that the first edge (20) of the blanket (18) conforms to a surface (S) defined by the extension (28). The surface (S) has a first portion (30) which undulates radially away from the head (26) in an outward direction, and a second portion (34) which undulates radially inwardly towards the head (26) in an outward direction. A clamp (36) adjustably secures the first edge (20) of the blanket (18) to the extension (28) so that flow of lubricant from between the shoe (14) and the blanket (18) past the head (26) is inhibited.
Bibliography:Application Number: CA19912094812