Abstract: A composite web comprised of free standing (non-blocked) plies is prepared with precisely even linear amounts of each ply, based on the principle of using a carrier ply of preferably heavy gauge plastic film. The carrier ply under controlled tension, is trained about the surface of revolution of a supply roll of a reinforcing scrim material. As the carrier ply is advanced, an exactly matched linear amount of scrim is deposited on one surface of the carrier ply, irrespective of the mismatched elongation properties of the scrim and carrier plies, respectively, and with minimal or no neck-down of the scrim. A liner ply of plastic film can be applied to the opposite side of the scrim using the same principles. The resulting web is ideally suited to be converted into filled, scrim reinforced, plastic bag structures.

Abstract: The apparatus of this invention is a vertical shaft kiln designed for firing aggregate materials. In a specific application the kiln is used to fire limestone aggregate (crushed limestone) to produce lime. The kiln chamber in this apparatus is defined by an annular space between an outer vertical shaft and an inner vertical shaft. An outwardly sloping cone member defines the bottom end of the inner shaft. The bottom end of the outer shaft is defined by an inwardly sloping cone. A space between the cone members provides an outlet for the kiln chamber.

Abstract: Side gusseted industrial bags are continuously (or intermittently) formed from continuous web materials, and simultaneously filled and sealed in one fast operation by the method and apparatus of this invention.

Abstract: Side gusseted industrial bags are continuously (or intermittently) formed from continuous web materials, and simultaneously filled and sealed in one fast operation by the method and apparatus of this invention.