Paper making and fiber liberation – Apparatus – Running or indefinite length product forming and/or treating...
Patent
1994-05-04
1996-02-06
Hastings, Karen M.
Paper making and fiber liberation
Apparatus
Running or indefinite length product forming and/or treating...
162203, 162374, D21F 100, D21F 152
Patent
active
054893658
ABSTRACT:
An adjustable twin-wire gap former is provided for forming a fiber web from an aqueous fiber suspension. The twin-wire gap former is arranged so that the first and second coacting, traveling, looped forming wires have juxtaposed sections, which define a forming zone and confine a paper web therebetween during its formation. A first means for providing suction is located adjacent the first wire fabric in the forming zone for draining water from the suspension and a second means for providing suction is located adjacent the second wire fabric in the forming zone. This second means for providing suction is movable toward and away from the second wire thus adjusting the geometry of the forming zone. Preferably a central operator controls the vacuum in the suction boxes and the pressure exerted by the boxes onto the forming fabric independently of each other.
REFERENCES:
patent: 3595744 (1971-07-01), Skoldvist
patent: 4769111 (1988-09-01), Nevalainen et al.
patent: 4790909 (1988-12-01), Harwood
patent: 4988408 (1991-01-01), Evalahti
patent: 5045153 (1991-09-01), Sollinger
patent: 5061347 (1991-10-01), Bubik et al.
patent: 5074964 (1991-12-01), Partanen
patent: 5167770 (1992-12-01), Bubik et al.
patent: 5221438 (1993-06-01), Takeuchi
Hastings Karen M.
Valmet Paper Machinery Inc.
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