Paper machine headbox with longitudinally shiftable contoured wa

Details Paper machine headbox with longitudinally shiftable contoured wa Paper machine headbox with longitudinally shiftable contoured wa

1995-07-05

1997-02-18

Hastings, Karen M.

Paper making and fiber liberation

Apparatus

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

162336, 162216, D21F 106

Patent

active

056038070

ABSTRACT:
A headbox of a machine for producing a fiber web from a pulp suspension which travels in a flow direction through the headbox has a first chamber into which a pulp suspension is introduced, a second chamber provided downstream of the first chamber, and at least two walls provided in a region between the first and second chambers so that the pulp suspension flows between the two walls. Each of the two walls has a non-planar, contoured surface to generate turbulence in the pulp suspension flowing between the two walls. The headbox also includes means for longitudinally shifting at least one of the two walls with respect to the other wall to control the turbulence generated in the pulp suspension.

REFERENCES:
patent: 3843470 (1974-10-01), Betley et al.
patent: 3939037 (1976-02-01), Hill
patent: 3954558 (1976-05-01), Egelhof
patent: 4133713 (1979-01-01), Chuang
patent: 4326916 (1982-04-01), Flaig et al.
patent: 4504360 (1985-03-01), Fujiwara
patent: 4566945 (1986-01-01), Ewald et al.
patent: 4604164 (1986-08-01), Fujiwara et al.
patent: 4687548 (1987-08-01), Ilmoniemi et al.
patent: 4765868 (1988-08-01), Fujiwara
patent: 4888094 (1989-12-01), Weisshuhn et al.
patent: 4897158 (1990-01-01), Weisshuhn et al.
patent: 4898643 (1990-02-01), Weisshuhn et al.
"Der Einflu.beta. des Stoffauflaufes auf Asymmetriefehler im Papier" by D. Egelhof Heidenheim, Sonderdruck aus Das Papier Nr. 7/86, Seite 313-318, pp. 2-7.
"Uber die Messung der Faserorientierung in einem Papierblatt mittels Laserstrahlung," by W. Bauer, et al., Wochenblatt Fur Papierfabrikation, 1988, pp. 461-462, 464-466 and 468.

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