Paper making and fiber liberation – Processes and products – Running or indefinite length work forming and/or treating...
Patent
1976-06-22
1978-07-11
Fisher, Richard V.
Paper making and fiber liberation
Processes and products
Running or indefinite length work forming and/or treating...
162301, 162306, D21F 100, D21F 900
Patent
active
041000188
ABSTRACT:
A method and apparatus for continuously forming a fibrous web in which a fibrous suspension is injected into a tapered throat formed by two running wires pervious to the suspension and converging to the periphery of an impermeable roll; the wires and the injected suspension therebetween are transported over a portion of the periphery of the roll under tension to form and dewater the injected suspension; as the wires run off the forming and dewatering roll, the web is sucked loose from the outer wire and it and the wires are transported over a convexly curved surface under tension; and the web is separated from the outer wire by off-running in the direction away from the convexly curved surface while the inner wire runs off that surface with the web, the convexly curved surface being impermeable at least at the wire separation location.
REFERENCES:
patent: 3311533 (1967-03-01), De Montigny et al.
patent: 3625814 (1971-12-01), DeNoyer
patent: 3726758 (1973-04-01), Parker et al.
patent: 3772140 (1973-11-01), Kobayashi
patent: 3846232 (1974-11-01), Kankaanpaa
patent: 3876498 (1975-04-01), Justus
patent: 3951736 (1976-04-01), Kobayashi
Klerelid Berndt Erik Ingvar
Stenberg Erik Gunnar
Wahren Douglas
Aktiebolaget Karlstads Mekaniska Werkstad
Fisher Richard V.
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