Apparatus for manufacturing multi-layered concrete roof tiles

Details Apparatus for manufacturing multi-layered concrete roof tiles Apparatus for manufacturing multi-layered concrete roof tiles

1988-10-05

1991-01-22

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

With means applying coating material to work or work contact...

Means contacting work downstream of shaping member

425 99, 425104, 425132, 4251335, 425134, 425461, B28B 1108, B20B 1900, B29C 4706

Patent

active

049867440

ABSTRACT:
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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