Braas Gmbh

Manfred Weisweiler

Gunter Jost

An apparatus and a proces for the manufacture, by the extrusion method, of roof covering plates having at their underside a transverse flange shaped thereto. At a filling station cavities in the pallets corresponding to the transverse flange, are first filled with a hardenable plastic material such as fresh concrete, and said material is then compacted at at least one compacting station. Thereafter, a continuous layer of the material is deposited at a depositing station. The material is finally processed to roof covering plates.

Method and apparatus for the manufacture of roof covering plates having

An apparatus for manufacturing concrete roof tiles by extrusion includes a coating system adapted to be supplied with green concrete and to apply a continuous layer of green concrete onto a continuous strand of movable, positively advanced bottom molds (14), a compacting roll (25) and a smoothing member (35) immediately downstream thereof in the manufacturing direction for compacting and possibly shaping the basic green concrete layer passing therebeneath on the bottom molds. There is provided downstream--as viewed in the manufacturing direction--of the smoothing member (35) for the basic layer (17) and separated therefrom by a gap (40) extending transversely to the manufacturing direction, at least a further smoothing member (45) for another layer, especially a cover layer (18), to be applied onto the basic layer (17). The material for said other layer is supplied under pressure through the gap (40).

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Dreieichenhain, Germany

Manfred Weisweiler