Press roll with extended press shoe having support forces concen

Details Press roll with extended press shoe having support forces concen Press roll with extended press shoe having support forces concen

1997-05-30

1999-01-05

Hastings, Karen M.

Paper making and fiber liberation

Apparatus

Running or indefinite length product forming and/or treating...

162361, 492 7, D21F 308

Patent

active

058557407

ABSTRACT:
A press roll for treating a material web in a nip formed with an opposing surface is provided. A press shoe extends along the nip and guides a press jacket. Several adjacent force elements disposed along the direction of the roll axis are supported on a stationary carrier. The force elements are preferably each fluid-actuated cylinder/piston units which can bias the press shoe with their movable pistons. The piston of at least one force element and/or an opposing region of the press shoe concentrate support forces in piston edge regions that are disposed opposite one another on different ends of a central piston plane perpendicular to the roll axis.

REFERENCES:
patent: 4568423 (1986-02-01), Laapotti
patent: 5167768 (1992-12-01), Cronin
patent: 5650047 (1997-07-01), Meschenmoser

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