G. Siempelkamp Gmbh & Co.

Gerd Roth

Heinrich Axer

In manufacturing pressed boards, a flowable mixture of thermosetting resinous material and filler is blown through one or more nozzles into a converging throat formed by a pair of relatively inclined perforated conveyor bands in which the mixture is compacted into a continuous, coherent but preferably still pliable web by the application of heat to preset the resinous material thereof. The web may be immediately converted into a rigid board by being led, without intermediate cooling, into a continuously working press for final condensation of the resin; on the way to that press it may be subjected to a finishing operation, as by adhesion of preheated strips of paper or other coverings to its still tacky surfaces.

Method of making pressed board

In manufacturing pressed boards, a flowable mixture of thermosetting resinous material and filler is blown through one or more nozzles into a converging throat formed by a pair of relatively inclined perforated conveyor bands in which the mixture is compacted into a continuous, coherent and self-supporting web by the application of heat to preset the resinous material thereof. The web is transversely cut into individually manipulable sections which are fed by a stack conveyor to a platen press, operating in step with the feeding and cutting mechanisms, for final setting of the resin.

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Kevelaer, Germany

Gerd Roth