Patent ID: 7293638

Claim:
An orientation unit for a fruit sorting and grading machine, which comprises a proximally placed set of two pairs ( 12 , 14 & 15 , 16 ) of spring ( 8 , 11 ) loaded freely rotatable rollers on horizontal shafts ( 10 ) mounted on vertical supports ( 9 ); each of the said pair of rollers ( 12 , 14 & 15 , 16 ) consisting of a conical ( 14 , 16 ) and cylindrical ( 12 , 15 ) rollers, wherein the inside edge of the conical rollers ( 14 , 16 ) of each of the said pair of rollers ( 12 , 14 & 15 , 16 ) having an elliptical profile ( 14 , 16 ) and the inside edge of the cylindrical rollers ( 12 , 15 ) of each of the said pair of rollers ( 12 , 14 & 15 , 16 ) having a flat laminar surface ( 12 , 15 ); the said set of two pairs of rollers ( 12 , 14 & 15 , 16 ) being provided with direct underneath contact with a variable speed horizontally moving endless belt ( 7 ).