Abstract: A portable concrete molding apparatus for forming concrete structures of a predetermined configuration, either on-site or at a central manufacturing facility. The apparatus includes a trailer having furnace plenum bounded by a pair of fixed walls. Each fixed wall cooperates with a movable wall for forming a mold therebetween. Each movable wall includes a concrete inlet for introducing concrete into the bottom portion of the mold. The fixed and movable walls include push-off valves for ensuring separation of a concrete structure from the mold walls, as the mold walls are separated.

Abstract: A portable concrete molding apparatus for forming concrete structures of a predetermined configuration, either on-site or at a central manufacturing facility. The apparatus includes a trailer having furnace plenum bounded by a pair of fixed walls. Each fixed wall cooperates with a movable wall for forming a mold therebetween. Each movable wall includes a concrete inlet for introducing concrete into the bottom portion of the mold. The fixed and movable walls include push-off valves for ensuring separation of a concrete structure from the mold walls, as the mold walls are separated.

Abstract: A portable concrete molding apparatus for forming concrete structures of a predetermined configuration, either on-site or at a central manufacturing facility. The apparatus includes a trailer having furnace plenum bounded by a pair of fixed walls. Each fixed wall cooperates with a movable wall for forming a mold therebetween. Each movable wall includes a concrete inlet for introducing concrete into the bottom portion of the mold. The fixed and movable walls include push-off valves for ensuring separation of a concrete structure from the mold walls, as the mold walls are separated.

Abstract: A smoke evacuation system for a building made of modular units includes sets of modular units disposed to each other and joined by a wall so as to allow a space between the modular units to define an air intake chamber. Each modular unit has a window which communicates with an air intake chamber. Each air intake chamber has an opening with an air intake fan. Each modular unit includes a chase with a window for exhausting air from the modular unit. The chases of the modular units are situated one to another so as to allow a continuous flow of air therethrough. A roof covers all of the modular units and air intake chambers, but has openings for the respective chases. Exhaust fans are mounted in said roof openings for exhausting air and smoke from said modular units. A smoke detector is installed in each chase to detect smoke in each corresponding modular unit and chase.

Abstract: A molding machine for casting a product is disclosed in a preferred embodiment of the invention. The molding machine includes a stationary support system and a rotatable apparatus, an opening and a horizontal axis of rotation parallel to the opening. Rotational means rotate the rotatable apparatus 180 degrees from a load and unload position to a casting position. A hoisting means is fixed to the reverse side of the opening of the rotatable apparatus for raising or lowering a transporter coupled to the opening of said rotatable apparatus. The mold includes a configuration form, having a ring-shaped floor, which cooperates with exterior wall forming panels. The mold also includes an inner core assembly which cooperates with the configuration form and has corner forming panels, interior wall forming panels and a floor forming panel. The corner forming panels move against the configuration form and the floor forming panel angularly to the configuration form and the floor forming panel.

Abstract: A molding machine for casting a concrete product includes a stationary support system, a rotatable apparatus and a pair of bearings supporting the rotatable apparatus on the stationary support system. The rotatable apparatus rotates 180 degrees between an upward position and a downward position. The rotatable apparatus includes a mold having a configuration form, exterior wall-forming panel, interior wall-forming panels, and interior corner-forming panels, all of which hang from corresponding trolleys which ride on corresponding rails to form the walls of the concrete product when all of the panels are against the product's configuration form. Further included is a floor panel which cooperates with the interior wall-forming panels and the interior corner-forming panels and is supported thereon by an internal structure. The floor panel, the interior wall-forming panels, and interior corner-forming panels are positioned below the exterior wall-forming panels and spaced therefrom to contain the concrete therein.