Blade for paper making machine

Details Blade for paper making machine Blade for paper making machine

D - Textiles, Paper

21

F

92/15.4

D21F 1/66 (2006.01) D21F 1/48 (2006.01)

Patent

CA 1068524

ABSTRACT A drainage blade for a paper making machine has an upper surface contour including a front land portion, a rear foiling portion inclined downwardly at an angle up to about 5° and bridging the two portions, a smoothly curved, elevated bearing surface which extends above both the land portion and the foiling portion of the blade. Between the bearing surface and the leading edge of the blade, the land portion slopes upwardly at a small angle which may be about 1/2° to about 1°. The bearing surface is formed by a cylindrical insert which is rotated when the insert wears close to the level of the blade surface.

307672

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