Adjustable headbox for a paper machine

Paper making and fiber liberation – Apparatus – Running or indefinite length product forming and/or treating...


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162337, 162339, 162340, 162343, D21F 102, D21F 106




A paper machine has an equalizing part between a distribution pipe system part and a turbulence section in the flow path of the pulp stock. The equalizing part has an equalizing chamber with a length in the direction of flow of the pulp stock and a front wall. An adjusting device is coupled to the front wall of the equalizing chamber for adjusting the length of the equalizing chamber by adjustment of the position of the front wall.

patent: 4162189 (1979-07-01), Kirjavainen
patent: 4166759 (1979-09-01), Kirjavainen
patent: 4202724 (1980-05-01), Kirjavainen
patent: 4225386 (1980-09-01), Edblom et al.


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