Abrading Apparatus

Author:  Rosenberger, W. A. et al
Source:  US Patent 2,590,576
Doc ID:  1952000
Year of Publication:  1952
Abstract:  
The present invention relates to abrading apparatus, more particularly the present invention is concerned with abrading machines of the character wherein an abrasive is picked up and directed against the work operated upon, by centrifugal action.