FOUNDER'S PRESS, is a strong square frame, consisting of four pieces of wood, firmly joined together with tenons and otherwise. This press is of various sizes, according to the sizes of the moulds. Two of them are required to each mould, at the two extremities of which they are placed; so that, by driving wooden wedges between the mould and the sides of the presses, the two parts of the mould in which the metal is to be run may be pressed close together.