Applying pressure on the web at the wire end of a paper machine

Details Applying pressure on the web at the wire end of a paper machine Applying pressure on the web at the wire end of a paper machine

1994-01-13

1996-01-02

Hastings, Karen M.

Paper making and fiber liberation

Apparatus

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

162300, 162352, D21F 100

Patent

active

054805201

ABSTRACT:
The wire end or forming section of a paper making machine is a twin wire section defined by two endless loop wire belts or wires between which fibrous suspension moves through the wire end. A supporting element, either in the form of a rotating cylinder or in the form of a support belt, has the wires passing over it in the twin wire zone. Pressure elements, in the form of strips, rods or even a shoe, are supported to apply pressure on the wire belts and directed toward the moving supporting surface. The pressure elements are placed along the twin wire path so that pressure free regions remain between neighboring pressure elements. The pressure elements are distributed over the entire width of the wire belts.

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patent: 5167770 (1992-12-01), Bubik et al.
patent: 5211814 (1993-05-01), Jaakkola et al.
patent: 5259929 (1993-11-01), Bubik et al.

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