Paper making and fiber liberation – Apparatus – Running or indefinite length product forming and/or treating...
Patent
1996-10-03
1999-03-30
Czaja, Donald E.
Paper making and fiber liberation
Apparatus
Running or indefinite length product forming and/or treating...
162336, 162380, 162343, D21F 102, D21F 100
Patent
active
058883533
ABSTRACT:
For distributing stock evenly across the face of a tube bank in a papermaking machine, the stock supply header has an increasing change in cross-sectional area per unit width traveling from the inlet end to the recirculation end of the header. The header top wall converges toward the bottom wall, while the rear wall converges toward the front wall. The change in cross-sectional area down the header from the inlet end to the recirculation end is thus closely matched to an ideally parabolic shape.
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"Beloit Concept III.TM. headbox . . . delivers a uniform, full-width, controllable microturbulence to the slice," a brochure published by Beloit Corporation, No. B-307.
"Beloit Technology Update: Concept IV-MH.TM. Headbox--The Next Generation Converflo," a brochure published by Beloit Corporation, Form No. TU126, Apr. 1993.
U. Begemann, "Modulejet Hheadbox concept operating experience with single and multi-layer headboxes processing different paper grades", Pulp & Paper Canada, 97:8, pp. 20-23, Aug. 1996.
A. Harrison, "New machine designs balance sheet quality, production goals", Pulp & Paper, vol. 68 No. 4, pp. 61-64, Apr. 1994.
D. Sims and S. Pantaleo, "Catawba mill installs the next genereation headbox", Paper Technology, vol. 36 No. 10, pp. 24-31, Dec. 1995.
Beloit Technologies Inc.
Czaja Donald E.
Fortuna Jos'e A.
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