Abstract: An improved molding machine which overcomes the tendency of concrete members molded therein to become end distorted upon initial discharge movement relative to the mold cavities in which they are formed. The front set of plates which close that end of the multi-cavity mold box proximal to the discharge end of the machine are maintained in contact with the faces of the concrete member adjacent thereto at least during the initial breakaway of the concrete members from the sides of the mold. The molded members are forced out of the mold box by a hydraulic ram acting upon a second set of end plates which act to close the rear end of the mold cavities. Once the concrete members are smoothly moving relative to the mold cavities, the front set of end plates are withdrawn to enable the members to be completely discharged from the mold. A bleed orifice is placed in the return line of the hydraulic cylinder controlling the retraction action of the front end plates so that the two sets of end plates move in unison.

Abstract: Apparatus for initially bending pairs of spaced parallel concrete curbing immediately after it has been cast and while still in a zero slump state. The apparatus includes a blade-like tool adapted to extend into the V-shaped space which normally exists between opposed pairs of concrete curbing when the latter emerge from curb molding apparatus, said tool including opposed sidewalls which may be flexibly bent or distorted away from each other at pre-selected portions along the longitudinal extent of such tool so as to simultaneously and oppositely bend said curbing pair. Means for distorting the flexible sidewalls of the tool are provided in the form of rollers adapted to contact interior portions of the sidewalls and be forced downwardly with respect thereto, thereby increasing the distance between the sidewalls at such preselected locations.