Perforated sheet for the head box of a paper machine

Details Perforated sheet for the head box of a paper machine Perforated sheet for the head box of a paper machine

1983-12-19

1985-09-03

Smith, William F.

Paper making and fiber liberation

Apparatus

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

162272, 162336, D21F 102

Patent

active

045390754

ABSTRACT:
Perforated sheet for a head box of a paper machine, the perforated sheet being provided with a number of parallel flow passages starting from a common front face. The perforated sheet is provided with a set of feeding ducts which can be connected to a source of flushing liquid and which is connected, by means of flushing ducts, to the front face of the perforated sheet. The perforated sheet preferably consists of several rod elements, each of which is provided with a flow passage and which have been assembled as parallel to each other, side by side and one above the other, into an integrated package.

REFERENCES:
patent: 2736247 (1956-02-01), Hornbostel
patent: 3791918 (1974-02-01), Koskimies et al.
patent: 3962031 (1976-06-01), Bubik et al.
patent: 3970513 (1976-07-01), Lehtinen
patent: 4146427 (1979-03-01), Hogel et al.
patent: 4198270 (1980-04-01), Kurth et al.

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