Grain Separator And Cleaner

Author:  Krussow, H.
Source:  US Patent 1,515,776
Doc ID:  1924000
Year of Publication:  1924
Abstract:  
This invention relates to improvements in grain separators and has reference more particularly to gravity separators of the spiral type, and has for its main object to provide a separator for removing cockle, wild mustard and all other spherical shaped seeds from wheat, rye, oats and speltz.