Continuously Operating Sand Blast Apparatus

Author:  Hull, F. J.
Source:  US Patent 1,907,198
Doc ID:  1933000
Year of Publication:  1933
Abstract:  
The invention relates to a sand blasting apparatus for cleaning the surfaces of large castings and other large bodies of metal, either rolled, stamped or forged, by means of abrasive particles projected against the surface. While the abrasive material now in general use is granular metal, the process is termed for convenience in the language of the art, sand blasting.