Abstract: A feeding device for a vertical tube conveyor supplying the goods towards the lower input end of the conveyor consists of at least one vertical feeding wing rotatable around the lower end of the conveyor, the wing having a vertical elongation from the lower end of the casing of the conveyor to or beyond the lowest end of the conveyor, said wing forming a helix curve running from one point close to the casing, the angle between the tangent of the curve and the direction of rotation along the major part of the curve being such that the tangential force from the wing does not counteract the feeding of the goods into the supplier.