Patent ID: 8128390
Filing Date: 2012-03-06
Classification: E04G

Abstract:
1. A concrete molding machine movable in an extrusion direction and comprising: a hopper for concrete connected to an entrance of a mold; at least one tunnel plate detachably mountable within the mold for reducing the width thereof to a reduced width, the at least one tunnel plate being substantially L-shaped with a side wall and a substantially horizontal top wall extending away from the reduced width of the mold; a pusher for forcing concrete through the mold, the pusher including mounting supports and a pusher plate with a pusher face extending substantially across the width of the mold, the pusher plate having at least one mounting device releasably mounted on the mounting supports of the pusher means, the pusher plate detachable from the pusher and substitutable by a second pusher plate having a pusher face extending substantially across the reduced width of the mold; a support for the pusher plate enabling reciprocating movement of the pusher plate between a first position allowing concrete to pass from the hopper to the mold and a second position for extruding concrete from the mold; and a drive mechanism connected to the pusher to generate the reciprocating movement of the pusher plate.