Roll with blades rotatably mounted within it in the forming sect

Details Roll with blades rotatably mounted within it in the forming sect Roll with blades rotatably mounted within it in the forming sect

1989-04-27

1990-04-10

Hastings, Karen M.

Paper making and fiber liberation

Apparatus

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

162357, 162368, 162352, 291211, 291213, D21F 100, D21F 154

Patent

active

049157914

ABSTRACT:
The invention relates to a roll (8) for the forming section of a paper machine or the like, comprising a perforated shell (17) for removing water from a fibre suspension through holes (18) in the shell (17) into the roll (8) and being arranged to be mounted rotatably in the machine. A wire (3; 10) or the like within the forming section is arranged to be in contact with the shell (17) of the roll (8) over a part of its periphery. For improving the dewatering and the formation, the roll (8) comprises, at least substantially over the peripheral portion in contact with the wire (3; 10), bladelike means (21; 33) extending in the longitudinal direction of the roll (8). The blades are positioned within the shell (17) close to the inner surface thereof and mounted in such a manner that the shell (17) moves relative to the blades when the roll (8) rotates.

REFERENCES:
patent: 439538 (1890-10-01), Miller et al.
patent: 3111454 (1963-11-01), Tucker et al.
patent: 3121660 (1964-02-01), Hall, Jr.
patent: 3272692 (1966-09-01), Hayes et al.
patent: 3577315 (1971-05-01), Franklin
patent: 3846232 (1974-11-01), Kankaanpaa
patent: 3880711 (1975-04-01), Hayes, Jr.

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