Fecha de publicación: 27/04/2023 Fuente: WIPO "stone fruits" A stone fruit nut pre-sheller (1) comprising a frame (2) having first (3) and second ends (4) with a roller (5) rotatably mounted between them with drive means at a free end thereof, including a passage (6) between the first (3) and the second ends (4) of the frame (2) between the roller (5) and the cover, having an inlet ( 11) at the first end (3) of the frame (2) and an outlet (12) at the second end (4) of the frame (2), and a predetermined cross-sectional area perpendicular to a longitudinal axis of the roller (5), with the area being sized to allow a stone fruit nut within a predetermined size range to enter the inlet (11) only with its longitudinal axis substantially perpendicular to the cross- sectional area of the passage (6) at its inlet (11); for a stone fruit nut that is fed into the inlet (11) to be rolled around its longitudinal axis between the roller (5) and the cover to crack the stone fruit nut shell.