Paper making machine foil having low disturbance profile and sel

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

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162374, 425182, D21F 154, D21F 700

Patent

active

043315119

ABSTRACT:
A paper making machine foil is provided with one or more of the following: a narrow angle (from 14.degree. to 23.degree.) forwardly projecting doctoring nose providing a water skimming edge, a layer of wear resisting material spaced rearwardly from the skimming edge and a wear resisting facing on and along an under surface of the nose and providing a self-sharpening water stripping tip for the skimming edge, and a metal (stainless steel) body provided with a downwardly opening recess within which is mounted a mounting member (rigid plastic) having a downwardly opening shaped groove receptive of a sliding connection for mounting the foil in a paper making machine.

REFERENCES:
patent: 2928465 (1960-03-01), Wrist
patent: 3446702 (1969-05-01), Buchanan
patent: 3732142 (1973-05-01), Beacom et al.
patent: 3738911 (1973-06-01), Kienzl et al.
patent: 3778342 (1973-12-01), Charbonneau
patent: 3870597 (1975-03-01), Getman et al.
patent: 3928125 (1975-12-01), Poeschl
patent: 4004969 (1977-01-01), Beauchemin
patent: 4134788 (1979-01-01), Witworth
Hydrofoil Design and Application Is An Evolving Science, Thorp, Paper Trade Journal, 1/11/65.

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