Manufacture of concrete tiles

Details Manufacture of concrete tiles Manufacture of concrete tiles

1983-01-14

1988-07-19

Silbaugh, Jan H.

Plastic article or earthenware shaping or treating: apparatus

Female mold and cooperating stock smoothing means or excess...

Means carried by or attached to feeder

198804, 198811, 425114, 425127, 425220, 425254, 425315, 425362, 425373, 425452, 425453, 4251261, B28B 312, B28B 502, B28B 1114

Patent

active

047581484

ABSTRACT:
In manufacturing concrete tiles a stiff concrete mass is molded and heavily compacted by means of a rapidly rotating pressing roller on sheet metal molding trays, which during the molding operation are supported by carriers having relief-like supporting surfaces which are generally complementary to the bottom sides of the tiles. The tray carriers form parts of an endless conveyor passing a concrete extruding station, in which the pressing roller is included, the tray carriers being formed as platforms placed freely between a pair of driving chains, to which each platform is connected by one pair of coaxial pivots only. Each platform is composed of two segments, which are hingedly interconnected independently of the chains. When passing the concrete extruding station the tray carrying platforms rest on an endless intermediate belt moving over a stationary supporting bed, through the top side of which pressurized air is supplied in order to reduce the friction. The sheet metal trays are delivered to and removed from the conveyor platforms by means of loop-forming, flexible elements.

REFERENCES:
patent: 3631574 (1972-01-01), Chapman

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