Dispersion roll in a fourdrinier machine

Details Dispersion roll in a fourdrinier machine Dispersion roll in a fourdrinier machine

1990-06-04

1991-03-12

Hastings, Karen M.

Paper making and fiber liberation

Processes and products

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

162211, 162351, 162355, 162356, D21F 120

Patent

active

049990861

ABSTRACT:
In a Fourdrinier paper making machine a dispersion roll mounted between the headbox and the suction and dewatering means, underneath in contact with the Fourdrinier travelling fabric and extending laterally across the width of the fabric, and adapted to rotate at about the same speed as that of the fabric; the roll having a fluted surface of alternating lands and grooves, and a plurality of spaced, parallel, lateral slots across each said land to communicate each groove with the next adjacent groove. The function of the roll is to vibrate the travelling fabric and cause better dispersion of the paper fibers.

REFERENCES:
patent: 1839158 (1931-12-01), McDonnell
patent: 2092798 (1937-09-01), Charlton
patent: 2095378 (1937-10-01), Charlton
patent: 2369653 (1945-02-01), Berry et al.
patent: 2694345 (1954-11-01), Hornbostel
patent: 3549487 (1970-12-01), Clark
patent: 3960653 (1976-06-01), Futcher et al.
patent: 4306934 (1981-12-01), Sepparen

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