Press apparatus for dewatering a fiber web

Abstract

Abstract APPARATUS FOR DEWATERING A FIBER WEB CARRIED ON A MOVING FORMINOUS WIRE ON WHICH THE WEB WAS FORMED COMPRISING A WIRE OR FELT OVERLYING THE FORAMINOUS WIRE AND MOVABLE CONIOINTLY WITH IT ALONG A PORTION OF ITS TRAVEL AND PRESS PALTES POSITIONED ON EITHER SIDE OF THE WIRE AND THE OVERLYING WIRE OR FELT TO ENGAGE AND SQUEEZE THE FIBER WEB BETWEEN THEM TO EXPRESS WATER FROM THE WEB IN THE ZONE OF PRESSURE BETWEEN THE PLATES. ONE OF THE PRESS PLATES IS MOUNTED, SUCH AS BY MEANS OF A LEVER, FOR LINEAR MOVEMENT TOWARD AND AWAY FROM THE OTHER PRESS PLATE AND SUCH AS BY MEANS OF A PIVOT MOUNTING FOR ATTACHING THE PRESS PLATE TO THE LEVER, FOR ANGULAR MOVEMENT OF ITS MAJOR PLANE RELATIVE TO THE MAJOR PLANE OF THE OTHER PRESS PLATE. THE MOVABLE PRESS PLATE IS URGED TOWARD THE OTHER PRESS PLATE WITH A PREDETERMINED ADJUSTABLE FORCE EFFECTIVE TO CREATE A ZONE OF PRESSURE IN THE WEB OF WHICH (A) THE INTEGRATED MAGNITUDE OVER THE AREA OF THE PLATES IS SUBSTANTIALLY CONSTANT AND (B) THE DISTRIBUTION CURVE IN THE DIRECTION OF MOVEMENT OF THE WEB IS OF SUBSTANTIALLY UNALTERED SHAPE, REGARDLESS OF TRANSIENT VARIATIONS IN THE THICKNESS AND DRAINAGE PROPERTIES OF THE WEB.

Inventors

• 👤 Erik Gunnar Stenberg

Bibliographic Details