abstract |
A press mechanism and method for removing liquid from a traveling fibrous web of the type such as formed in a paper making machine and received from the fourdrinier section with the press providing an extended nip formed between a pair of traveling belts or between a belt and a roll with pressure applied to the web through the belts by hydraulic chambers or by the tension of a belt against the roll. A felt receives the liquid from the web, and a thin porous sheet of a predetermined porosity is placed between the web and felt to inhibit the flow of water between. The compressing time exceeds the release time so that a greater amount of water will flow from the web to the felt than will return to the web. |