Papermaking dewatering apparatus having wire support means with cooling water feed means

Claim 1

A paper processing machine comprising: upper wire means and lower wire means arranged to define therebetween a gap through which there is passed in a feed direction sheet material to be treated, both said upper and lower wire means extending so as to be movable on opposite sides of said gap in the feed direction of said sheet material together wih said sheet material; wire support means comprising a plurality of individual segments consisting essentilly of sintered oxide material which extend across the width of said paper making machine in a direction transversely to said feed direction and which are connected with one another, with a plurality of said segments being arranged consecutively in said feed direction along the course of said wire means; dewatering elements operatively associated with said wire means located at a different location than said support means forwardly thereof taken relative to said feed direction and cooling water feed means; said segments having a maximum linear expanse of 700 mm per segment taken along said feed direction and having junction areas between said consecutively arranged segments defining a gap for feeding to said wire means through said gap cooling water from said cooling water feed means; said segments in the area of said gap being connected with a support and being sealed with respect to said support, said support forming a hollow space between adjacent segments below said gap with said cooling water feed means being located in the hollow space below said gap.