Abstract: A live storage system for packages is provided in which a rack has a plurality of storage rows, each row having a slot along its base. An input lane for the packages extends along one side of the storage rack and an output lane for the packages extends along another side of the storage rack. A traveler mounted beneath the storage rack moves to positions beneath each of the rows. The traveler has an air plenum with a plurality of air jets extending through the upper surface of the plenum. The traveler has a diverter at each end to divert packages from the input lane to a storage row, and to divert packages from a storage row to the output lane. An air supply pressurizes the plenum of the traveler and the pressurized air flows through the jets in the upper surface of the traveler and through the slot in the base of each of the storage rows to create an air film along which the packages are conveyed onto and off of each storage row. An accumulating conveyor gathers slugs of packages for the storage system.

Abstract: A pump is provided in which the fluid being pumped is used to lubricate the moving parts of the pump and the flow path of the fluid through the pump insures that at least a portion of the fluid circulates around the moving parts of the pump to assure efficient lubrication and rapid flushing of the pump. The pump is driven by a pair of concentric magnets, the interior magnet being sealed off relative to the outer magnet.

Abstract: A process of making an asphaltic compound for use in paving and roofing in the field at ambient air temperatures is disclosed in which 1-5 parts by weight of an acrylic emulsion of a copolymer of methyl methacrylate and ethyl acrylate is mixed with 1-3 parts by weight of hydrated lime and with 40 parts by weight of clean washed sand and thereafter blended at ambient air temperatures with 12-20 parts by weight of asphaltic emulsion.