Beloit Corporation

Beloit Technologies, Inc.

Daniel J Eaton

Roger A Kanitz

A method and apparatus for improved dewatering of a papermaking stock in a web forming section of a papermaking machine including directing a stock jet stream into the head end of a run between opposed looped forming wires traveling in a substantially parallel forming run passing over a curved vacuum forming box and thereafter passing over one or more pressure locations with a pressure dome on one side and a water collecting chamber at the other side of the wires with the pressure dome in one form divided into compartments each applying an increasing pressure to the wire and stock between the wires with the air pressure being heated such as by being delivered from the dryer section and the wires separated slightly following the pressure location with a last smaller pressure compartment transferring the web to one of the wires and the wire carrying the web thereafter turning over a couch roll and the other wire carried over a turning roll.

Twin wire paper forming section with heated air pressure domes

In a papermaking machine, a method and mechanism for delivering stock to a dewatering web including a pressure headbox with a narrowing slice opening, a receiving throat either with a single traveling forming wire or a pair of traveling forming wires, bridging the space between the headbox opening and the wire so that the stock jet is contained without a free surface, and applying a trailing flexible element opposite the stock in a single wire machine or against one wire in a twin wire machine with the force and location of the trailing element controlled by a series of push rods arranged parallel in a cross machine direction.

Growing community of inventors

Beloit, WI, United States of America

Daniel J Eaton