APPARATUS FOR THE TWO-STEP MASS-PROCESSING OF CYLINDRICAL ITEMS, E.G. FOR MAKING AMMUNITION

摘要

An apparatus for the forming and/or treatment of cartridge cases while continuously travelling through a train of cartridge case treating instrumentalities, in particular a machine for varnishing or gumming the collar and the percussion cap thereof, said two operations being carried out, respectively, at a lower level and an upper level of an operating drum. An upstream transfer wheel leads untreated cartridge cases with a predetermined peripheral spacing to the lower level of the operating drum where varnishing of the collar or flange is carried out. The downstream transfer wheel returns the thus partially varnished cartridge cases and leads them to a recycling drum which at the same time turns the cartridge cases upside down, and introduces the thus turned cartridge cases to the upper level of the upstream transfer wheel. At the upper level of the operating drum there is then carried out the varnishing of the percussion cap, while the downstream transfer wheel returns the cartridge cases to lead them to a last wheel. The recycling effected between the upstream transfer wheel, the operating drum, and the downstream transfer wheel is effected with a distance between successive workpieces of one-half the normal spacing therebetween in the processing train of the apparatus, while the other wheels and the recycling drum operate with the normal distance between successive workpieces.