which the pockets s1 of the three concentric crowns r1 r2 r3 of disc d1 are oriented this section of arc corresponds also to a section of arc of the peripheral crown k of the receiving pockets arranged on the feeding disc d2 the operation of the device is as follows at each feeding step a gripper t is positioned in correspondence of the conveyor disc d1 so as to present its three suction cups 9 exactly over three oriented pockets s1 of the said disc d1 the gripper t is then lowered through a limited rotation of the shaft 22 so that its suction cups 9 come into contact with the candies p contained in the said three pockets s1 at the same time the suction cups are connected to the vacuum source since the suction slot 26 of the air distributor 25 covers the bore 12 on the disc 6 corresponding to the lowered gripper t finally the gripper is lifted due a subsequent rotation of the shaft 22 in this manner the suction cups 9 of the gripper t take out due to suction a set e of three candies from the pockets s1 of the disc d1 the lifted gripper t is carried in rotation by the rotary transfer device g in the direction of arrow f3 the suction cups 9 remain in communication with the suction chamber and the three candies p remain attached to the suction cups during this transfer when the gripper t reaches the zone of the feeding disc d2 the three suction cups 9 come to be positioned exactly above three corresponding receiving pockets s2 of the disc d2 the gripper t is now lowered thanks to a limited rotation.