METHOD AND DEVICE FOR STONING FRUITS Russian patent published in 1995 - IPC

FIELD: food industry. SUBSTANCE: method involves delivery of source product onto at least one separating section consisting of at least two spaced-apart moving working members, transportation and separate discharge of fruit pulp and stones. The source product is delivered across the direction of transportation of said product by the working members which are moved so as to impart a higher linear speed to the member whose linear speed vector in the zone of contact with the fruit is directed towards the clearance while the working member whose linear speed vector is directed away from the clearance has a lower linear speed. The device for stoning the fruits comprises a loading means, a separating section equipped with at least two rolls, a device for separate discharge of pulp and stones. The separating section consists of a frame capable of changing its inclination angles relative to the longitudinal axle on which are installed the rolls rotating in one direction so that the peripheral velocity of the surface of each next roll along rotation within the limits of one section is smaller than it is in the foregoing roll. In another embodiment of the device the separating section is formed by two movable working members one of which has a rectilinear working surface (or a surface with a large curvature) and can change its inclination angle relative to its longitudinal axis while the other member has a curvilinear surface and its working members can change the angle between their longitudinal axes. The loading device is installed in the beginning of the working member with a rectilinear surface before the member with a curvilinear surface. EFFECT: improved functional and operating characteristics. 5 cl, 6 dwg