High speed paper web forming and combining system with a stationary water guide

Claim 1

In a paper-making apparatus wherein fluid stock from which a web is formed is fed from a slice of a flow box onto a horizontal section of an inner wire belt where it is subjected to a first dewatering treatment by the action of first dewatering means under said horizontal section, said stock and said inner wire belt then passing between a vertically rotating, perforated cylinder mold and an outer belt and pressed therebetween along an arcuate path extending from the upper to the lower part of said cylinder mold thereby receiving a second dewatering treatment anD partially forming a web, the improvement in said apparatus which comprises tertiary dewatering means including: a stationary water guide means disposed under said lower part of said cylinder mold, said water guide means having a curved face which in vertical section constitutes an arc circumscribed around and between the outer surface of said cylinder mold and a point closely adjacent to the outer surface of a turning roll installed below said cylinder mold, thereby constituting a guide assembly for guiding the partially formed web along an arcuate downward travel path between the cylinder mold and the turning roll, said water guide means including a series of drain boards disposed normal to said arcuate downward travel path, said drain boards defining water guide channels therebetween, said web traveling over said drain boards and said water guide channels between said drain boards, and said water guide channels being disposed so as to feed any drained water to a water removal means.