Abstract: A side wing for a hinged metal belt conveyor is disclosed which has a diagonal offset for overlapping of adjacent side wings. The side wings are mounted on the extending ends of hinged rods journaled in openings in the lower corners of the side wings. The lower corners are each formed as an arc of a circle having its center at the center of an opening. The bottom edge of the side wing has a profile either of a straight line which lies at a distance from the center of the openings which is less than the radius of the arc, or which has the arc extending for some distance from a point below the center of the opening towards the other opening of the side wing. Such modified profile of the bottom edge reduces interference with adjacent side wings when the belt turns a corner.