Abstract: A molding system comprising molding units mounted on a truck on rails laid at right angles to a plurality of equi-spaced, parallel pouring lines. Each molding unit consists of a flaskless molding machine and a pusher for the product molds. The molding machines are operated with different but coordinated fluid pressure settings for the drag, cope, and match plate in such a manner that those components do not put any restraint upon the movement of a squeeze table.

Abstract: To permit efficient utilization of expensive equipment in casting mold manufacturing systems, particularly of a molding press, pattern plates are cycled in one loop of a plurality of work stations, including the station in which molding sand is applied to the mold boxes or flasks, and the single press, and a second loop also including the single press and, preferably, also the sand application station is provided in which loose patterns are placed in flasks, so that the common work stations, and principally the molding press, is efficiently utilized.

Abstract: Foundry molds may be compressed and vibrated between a vibration table and a presser plate within apparatus which is structured to enable connection of the vibration table and the presser plate as a rigid frame during the compression and vibration process. The coupling means forming the rigid frame include locking means which may be actuated between a locked and an unlocked position whereby a gap may be formed when the coupling means are in the unlocked position to enable foundry molds to be swung in place by horizontally extending arms to effect location of the foundry molds between the vibration table and the presser plate. Damper means are also provided which damp and limit the movement of the presser plate and its associated pressure applying means in both an upward and a downward direction.

Abstract: A horizontal stack foundry molding machine having opposed high pressure horizontally aligned rams adapted to close and then move into the open ends of a mold box filled with sand to make a high quality sand mold, such box being formed by opposed L-shape parts, the L-shape part forming the lower side of the box being horizontally movable after the rams have been retracted to shift the mold formed in the box from between said rams to a position in alignment with a pouring conveyor, a pusher being provided to move such mold from the movable L-shape part onto the pouring conveyor into juxtaposition with previously formed molds to form the horizontal stack.

Abstract: A foundary molding machine which for the simultaneous separate production of two foundry mold parts possesses two mold units provided with a respective match plate support and a sand filling- and compaction station. Each of the mold units has operatively associated therewith a pivotal device incorporating pivotal arms pivotable about vertical shafts in a respective horizontal plane. The pivotal arms carry mold frames supported in mold frame holders which they pivot from the sand filling- and compaction station, while rotating the mold frame containing the mold lower part through 180.degree. about a horizontal axis, into a position wherein both mold parts are in superimposed position at an attachment or assembly station where both of the mold parts are deposited on top of one another onto a conveyor mechanism.

Abstract: A cyclicly-operable molding machine for producing and assembling cope and drag mold parts.