Forming board elements

D - Textiles – Paper – 21 – F

Patent

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92/7

D21F 1/00 (2006.01) D21F 1/20 (2006.01) D21F 1/38 (2006.01) D21F 1/48 (2006.01)

Patent

CA 1221260

ABSTRACT OF THE DISCLOSURE The present invention discloses forming board elements for paper-making machines. The elements are provided with notches on their leading edges for generating longi- tudinal waves on the forming fabric. These waves induce transversal shear forces within the stock to break up fiber flocs which form within or downstream from the headbox.

442329

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