Brush for rotating brush rollers in sweeping machines

A brush for a rotating brush roller in sweeping machines, especially for airfields and streets, comprising a plurality of bristle bunches attached mutually spaced along a brush bridge intended for mounting in axial guides arranged at the periphery of discs attached to the rotor of the brush roller, said bristle bunches comprising bristle wires bent double round a locking wire or similar means coacting with stops on the brush bridge for retaining the bristle bunches on the bridge, characterized in that the brush bridge is made up from two sheet metal sections each having a substantially U-shaped section with parallel flanges and an intermediate web, that the sections are facing towards each other and are put together so that the flanges of one section lie inside the flanges of the other section and bear against the webs thereof, that openings at uniformly distributed places along the bridge are made in the webs of the two sections, said openings being stamped inwards to form softly rounded edges and merging into cylindrical studs, that the ends of the mutually opposing studs overlap each other, that the two sections are joined together by means of welding, that the bristle bunches are each inserted with their doubled ends in the respective opening in the upper side of the bridge to project out on the under side of the bridge, and that the locking wire on the under side of the bridge is drawn through the doubled ends of the bristle bunches to lock the bunches against withdrawal.