Patent attributes
A method for manufacturing press molded bodies having at least two separate layers of material is disclosed. The method comprises providing a pair of cooperating parallel arranged rollers (1, 2) defining a nip (3) therebetween and having cavities defined on their outer surfaces, each cavity on one of the rollers (1, 2) cooperating with another cavity of the other roller (2, 1) to form die means, the axes (4, 5) of the rollers (1, 2) being arranged substantially horizontally, feeding at least two contiguous separate streams of different particulate materials into die means adjacent to the nip (3), so that each die means will be filled with portions of different material and counter-rotating the rollers (1, 2) so that the materials contained in the die means will be compressed into press molded bodies (briquettes) having at least two separate layers of material. An apparatus for the manufacture of press moulded bodies is also disclosed.
