|4294657||Apparatus for making fiberboard|
The apparatus for manufacturing the fiberboard is in the form of two vertically opposed endless conveyors upon each of which a fiber layer is formed. Each conveyor has a slanted running portion as a part thereof. A suction box is disposed along the inner ...
|4149930||Method and apparatus for making asbestos-cement boards|
An improvement in the method and apparatus for fabricating asbestos-cement boards, wherein a felt band coated with fiber fleece is fed to a pair of press rollers in nip relationship and wherein the coating of the felt band with fiber fleece is effected by...