Defloccing and distribution rolls for papermachine headbox

Details Defloccing and distribution rolls for papermachine headbox Defloccing and distribution rolls for papermachine headbox

1990-12-17

1992-03-31

Hastings, Karen M.

Paper making and fiber liberation

Apparatus

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

162216, 162344, D21F 102

Patent

active

051005131

ABSTRACT:
Apparatus for even distribution of, and for maintaining fibrous slurries in a deflocculated state in close proximity to the slice of a papermachine headbox, respectively. The apparatus, in the first instance, comprises one or more axial (center) flow distributor rolls feeding slurry to headboxes or other vessels. Secondly, a single or multiplicity of rectifier rolls or devices rotating inside a master, or outer, roll are housed in semi-circular, or other shaped, compartments located in the headbox front plates.

REFERENCES:
patent: 1841693 (1932-01-01), Aldrich et al.
patent: 2440727 (1948-05-01), Rosmait
patent: 2688276 (1954-09-01), Showers
patent: 2756650 (1956-07-01), Lee
patent: 3224929 (1965-12-01), Fair
patent: 3255074 (1966-06-01), Salomon et al.
patent: 3328237 (1967-06-01), Notbohm
patent: 3597818 (1971-08-01), Beck
patent: 3674633 (1972-07-01), Evalahti
patent: 3694312 (1972-09-01), Skoldkvist
patent: 3758378 (1973-09-01), Berger et al.

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