Breast box nozzle for a paper machine

Details Breast box nozzle for a paper machine Breast box nozzle for a paper machine

1980-10-16

1982-04-27

Fisher, Richard V.

Paper making and fiber liberation

Apparatus

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

162347, D21F 106

Patent

active

043269168

ABSTRACT:
A breast box nozzle for a paper making machine or the like is shown as having an adjustably positionable shutter member which can be moved generally further and lesser into the path of flow of a stream of pulp stock as to thereby determine the thickness of the discharged stream of pulp stock. A support arrangement applies a pressure to the shutter member as against a downstream side thereof in order to counter the forces generated by the stream of pulp stock upstream of the shutter member and applied as against the upstream side thereof tending to undesirably deform the shutter member. The support arrangement includes an elastomeric member generally interposed between a relatively fixed support member and a downstream side of the shutter member.

REFERENCES:
patent: 2928464 (1960-03-01), Western et al.
patent: 2993538 (1961-07-01), Mustonen
patent: 3167470 (1965-01-01), Moore
patent: 3645843 (1972-02-01), Schmaeng
patent: 4008123 (1977-02-01), Kirjavainen

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