Headbox for the production of fibrous stock webs

Details Headbox for the production of fibrous stock webs Headbox for the production of fibrous stock webs

1987-02-25

1989-03-14

Chin, Peter

Paper making and fiber liberation

Apparatus

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

162347, 162344, 162345, D21F 106

Patent

active

048122092

ABSTRACT:
A headbox, preferably for a paper machine, has a nozzle chamber with a slice gap, which is confined by a top and a bottom lip wall and by two side walls. The nozzle chamber is divided for the production of multi-layer fibrous stock webs into two or more machine-wide flow channels. For this purpose at least one wedge-shaped partition wall extends through the nozzle chamber from one side wall to the other, with this partition wall projecting through the slice gap in the direction of flow. Each of the two side walls is subdivided along the partition wall into two side wall sections. The partition wall is clamped between the side wall sections in the area of each side wall.

REFERENCES:
patent: 2911039 (1959-11-01), Hornbostel et al.
patent: 3943035 (1976-03-01), Stotz et al.
patent: 4141788 (1979-02-01), Justus
patent: 4181568 (1980-01-01), Pfaler
patent: 4349414 (1982-09-01), Stenberg
patent: 4543162 (1985-09-01), Hildebrand

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