Paper making and fiber liberation – Apparatus – Running or indefinite length product forming and/or treating...
Patent
1988-10-21
1989-08-29
Hastings, Karen
Paper making and fiber liberation
Apparatus
Running or indefinite length product forming and/or treating...
100 93RP, 100118, 100153, 162205, 162272, 162361, D21F 302
Patent
active
048614343
ABSTRACT:
An extended nip press apparatus is disclosed for pressing water from a web. The apparatus includes a press frame and a backing roll rotatably secured to the frame. An elongate shoe is connected to the frame, the shoe being movable relative to the roll. The shoe defines a concave surface having a lubricant thereon. The concave surface cooperates with the roll for defining therebetween an extended nip. An endless blanket having a first and a second lateral edge is slidable relative to the shoe, the blanket extending contiguously with the web through the nip such that the web is disposed between the blanket and the roll for pressing water from the web. First and second beads are connected to the first and second edges respectively, the beads extending continuously around the respective edges. A first and a second track are rigidly secured in a radial direction to the frame with the tracks slidably accommodating the first and the second beads respectively such that the edges of the blanket are guided by the tracks so that the blanket, the beads, and the tracks cooperate together to define an enclosure for confining the lubricant supplied between the concave surface and the blanket.
REFERENCES:
patent: Re31923 (1985-06-01), Justus et al.
patent: 4707222 (1987-11-01), Mullner et al.
Bonander James
Torza Sergio
Archer David J.
Beloit Corporation
Campbell Raymond W.
Hastings Karen
Veneman Dirk J.
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