Patent ID: 8753103
Filing Date: 2014-06-17
Classification: B28B

Abstract:
1. A dry-cast concrete block molding machine, comprising: an upstanding frame means having an upper end, a lower end, a first side, a second side, a front side and a back side; a concrete block mold box mounted on said frame means; said concrete block mold box including an open first end and an open second end; an upstanding first mold box end plate selectively horizontally movably mounted on said frame means; said first mold box end plate being selectively horizontally movable on said frame means between open and closed positions relative to said mold box; said first mold box end plate, when in said closed position, closing said open first end of said mold box; an upstanding second mold box end plate selectively horizontally movably mounted on said frame means; said second mold box end plate being selectively horizontally movable on said frame means between open and closed positions relative to said mold box; said second mold box end plate, when in said closed position, closing said open second end of said mold box; means for selectively supplying dry-cast concrete into said mold box when said first and second mold box end plates are in said closed positions; a mold tray staging area outwardly of said first mold box end plate for supporting one or more mold trays thereon; each of said mold trays including a bottom wall with inner and outer surfaces, an upstanding outer end wall with inner and outer surfaces and an upper end; an upstanding inner end wall with inner and outer surfaces and an upper end; an upstanding first side wall with inner and outer surfaces and an upper end; an upstanding second side wall with inner and outer surfaces and an upper end; said inner surfaces of bottom wall said end walls and said side walls of said mold tray defining a dry-cast concrete receiving cavity; said inner surface of said bottom wall of said mold tray having an irregular surface with indentations and ridges formed therein; a mold tray insertion and concrete block ejection apparatus adjacent said first mold box end plate; said mold tray insertion and concrete block ejection apparatus including: