Metal Shot Producing Apparatus

Author:  Stewart, O. L.
Source:  US Patent 3,271,992
Doc ID:  1966004
Year of Publication:  1966
Abstract:  
This invention concerns an apparatus for increasing the yield of fine metal shot from a single heat of metal and a machine for converting metal grit to shot for use therein. In its broadest sense, the method of the invention comprises a procedure whereby the randomly sized metal shot particles produced by a single heat of metal may be treated by breaking up the larger shot to produce fine fractured particles of shot called grit, and impacting the grit repeatedly until it is shaped into the approximate spherical shape of shot to give a larger inventory of the finer sizes of shot than are normally produced.