Abstract:
APPARATUS FOR DIAGONALLY CORRUGATING PAPER OR LIKE MATERIAL IN WHICH A WEB OF DEFORMABLE MATERIAL IS FED INTO A MOLD WHICH MOVES ON A CLOSED PATH AND WHICH HAS GROOVES EXTENDING DIAGONALLY ACROSS IT.
Abstract:
Gas and liquid contact apparatus employing a contact fill composed of layers having downwardly inclined folds or pleats crossing one another and bearing against one another in adjacent layers, the folds having vertical cuts near the lowermost edge thereof or being cut off short of the adjacent layer edge so that liquid flowing along the folds changes its direction of flow prior to the liquid reaching the edge.