ROTARY BRUSH SECTION

A cylindrical sweeper brush assembly includes a core provided with a longitudinal external keyway and a plurality of separate spaced side-by-side cirular brush elements mounted on the core. Each brush element includes a split circular channel with an outwardly facing peripheral opening and centrally bent radial bristles anchored in the channel by a wire engaging the bristle bights, which are clamped between the channel legs. The channel side walls on each side of the ring split are joined by a pair of separate connector plates which are affixed to the channel walls and are provided with inwardly directed key defining tongues which slidably register with the keyway.