Method and Apparatus for Bowl Type Vibratory Finishing

Author:  Raymond M. Leliaert
Source:  US Patent 4,067,147
Doc ID:  1978018
Year of Publication:  1978
Abstract:  
A vibratory finishing mill of the bowl in which a short annulus of the bowl is depressed to drfine a well, and in which the parts are separated from the media, when the finishing operation has been completed, by placing a screen member over the leading portion of the well, as a continuatin of the bottom wall of the bowl, to retain to parts on the surface while the media falls into the well fo rreturn to the bowl.