Glass Peening Machine and Dust-Collecting System

Author:  Leon Hellmann and Donald L. Temple
Source:  US Patent 3,138,845
Doc ID:  1964022
Year of Publication:  1964
Abstract:  
This invention relates to a machine for treating metallic surfaces by projecting glass beads under pressure against the surfaces to be treated for microscopic crests, ridges, and depressed or raised portions. Generally speaking, therefore, the invention relates, or is directed, to a machine for improving the surface characteristics of metal members of various kinds-for example, to remove rust from metal surfaces, for removing carbon from metal parts, such as pistons and cylinders of an internal combustion engine. The invention may also be used for deburring, descaling, paint removal, weld scale removal, and for sealing porous surfaces of metal objects. The surfaces of the workpieces are contacted with glass beads which pass through a flexible hose on the way to the nozzle. The hose may be of such length so as to permit peening all surfaces of cabinet-type and walk-in type of enclosures and all surfaces of other objects that require treatment.