Slice lip clamp assembly for a slice lip of a headbox

Details Slice lip clamp assembly for a slice lip of a headbox Slice lip clamp assembly for a slice lip of a headbox

1998-02-24

2000-05-30

Hastings, Karen M.

Paper making and fiber liberation

Apparatus

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

162347, D21F 102

Patent

active

060687363

ABSTRACT:
A headbox for a paper-making machine includes an inlet for receiving a fiber suspension. An apron and an upper wall converge relative to each other and define a machine wide discharge nozzle and an outlet therebetween. The discharge nozzle terminates at the outlet. A slice lip is carried by the upper wall. The slice lip is positioned at the outlet and includes a working edge defining an outlet gap with the apron. The slice lip is slidably movable a travel distance in directions toward and away from the outlet gap. A slice lip clamp assembly is connected to the upper wall. The slice lip clamp assembly engages the slice lip and biases the slice lip against the upper wall. The slice lip clamp assembly includes at least one clamping plate having at least one opening with an inside diameter, at least one fastener having an outside diameter and at least one keeper device. The inside diameter of each opening is larger than the outside diameter of each fastener by an amount which is dependent upon the travel distance. The at least one keeper device is positioned over each opening and has a number of through holes corresponding to the number of fasteners. Each fastener extends through a corresponding through hole and opening and is attached to the upper wall.

REFERENCES:
patent: 4221635 (1980-09-01), Kurtz et al.
patent: 4326916 (1982-04-01), Flaig et al.
patent: 4517055 (1985-05-01), Dore
patent: 4517056 (1985-05-01), Roerig et al.
patent: 4877486 (1989-10-01), Kade et al.
patent: 4879003 (1989-11-01), Reed
patent: 5560808 (1996-10-01), Graf
patent: 5597415 (1997-01-01), Graf

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