Headbox trailing element

Details Headbox trailing element Headbox trailing element

1984-04-11

1986-01-28

Bashore, S. Leon

Paper making and fiber liberation

Apparatus

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

162336, 162344, D21F 106, D21F 102

Patent

active

045669457

ABSTRACT:
A paper machine trailing element for use in a slice in a headbox wherein the trailing element is formed of laminations with a bead at the upper end for anchoring the element in a slice chamber with the bead formed of laminations with fibers on the outer surface in the machine direction and in the cross-machine direction within the bead so that the element has a greater stiffness in the machine direction at the upstream end with the element tapering to a thin tip at the downstream end and the downstream end formed of laminations with fibers extending in the cross-machine direction for a greater stiffness to minimize instability.

REFERENCES:
patent: Re28269 (1974-12-01), Hill et al.
patent: 3843470 (1974-10-01), Betley et al.
patent: 4051289 (1977-09-01), Adamson
patent: 4128455 (1978-12-01), Justus
patent: 4133715 (1979-01-01), Hergert
patent: 4173670 (1979-11-01), Van Auken
patent: 4331723 (1982-05-01), Hamm

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