Mould for producing concrete mouldings

A mold for producing concrete moldings comprising a frame insertable into a molding machine and a plurality of individual molding boxes mounted in said frame, said frame having a longitudinally extending central wall and said molding boxes being arranged in said frame in two parallel rows on opposite sides of said central wall, the interiors of said molding boxes containing a molding core corresponding to the moldings to be formed, each of said molding boxes having a pair of opposed longitudinal walls and a pair of opposed transverse walls joined together to form the outer walls of said molding box surrounding the mold core, said molding boxes each having at least two support flanges joined to and extending outwardly from each of the opposed longitudinal walls, the support flanges on one longitudinal wall being positioned with respect to the support flanges on the opposite longitudinal wall to provide sufficient space between the support flanges of the molding boxes to permit flanges of the molding boxes to be secured to the central wall with the flanges of the molding boxes in one row secured to the central wall between the flanges of the molding boxes of the opposed row of molding boxes.