Abstract: A press for moulding concrete products has a frame, a horizontal vibrating table, a board and a mould movable vertically between a demoulding upper position and a moulding lower position. A displacing device moves and selectively rigidly connects the mould to the table during vibration of concrete in the mould in a manner whereby the mould, the board and the table form a rigid unit subjected to vibration. The connecting device includes fixing legs attached to the mould and pairs of grippers for symmetrically selectively clamping the lower ends of the fixing legs.

Abstract: A press for molding concrete products comprising a vibrating table, a mold adapted to be put on the vibrating table and to be filled with concrete, a concrete feeding means such as a hopper and means provided between the hopper and the mold to fill the mold with a given amount of concrete, said mold filling means comprising an endless belt conveyor arranged below the hopper and including belt-driving means, and means for bodily displacing the conveyor in a linear reciprocating motion so as to move the forward end of the conveyor above the mold and to bring it back to an initial position.