Twin wire forming apparatus with positive pressure foils

Details Twin wire forming apparatus with positive pressure foils Twin wire forming apparatus with positive pressure foils

1989-06-12

1991-03-12

Hastings, Karen M.

Paper making and fiber liberation

Apparatus

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

162300, 162352, D21F 100, D21F 154

Patent

active

049990870

ABSTRACT:
A paper web forming apparatus essentially comprising two wires which move together with stock which is held therebetween and a plurality of wire supporting members for supporting the wires, each of the wire supporting members forming a wedge-shaped space as defined between the wire surface and the wire supporting member, wherein the wedge-shaped space is so designed that the width as measured therebetween decreases as seen in the direction of movement of the wires.

REFERENCES:
patent: 2141393 (1938-12-01), Hill
patent: 3489644 (1970-01-01), Rhine
patent: 3573159 (1971-03-01), Sepall
patent: 3810817 (1974-05-01), Arledter
patent: 3944464 (1976-03-01), Means
patent: 4306934 (1981-12-01), Seppanen
patent: 4447296 (1984-05-01), Cruse

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