Brush roundator

A brush roundator for dulling the tips of brush bristles which are mounted on brush backs comprising:

• a conveyor for conveying in a straight line said brush backs having said brush bristles mounted thereon, said conveyor including fastening members for fastening said brush backs to said conveyor with said bristles extending outwardly, away from said conveyor, said conveyor also including a speed adjusting means for allowing selective adjustment of the speed at which said conveyor conveys said brush backs;
• a plurality of abrasion disc groups, each of said abrasion disc groups including an elongated frame having a plurality of discs linearly arranged thereon, side-by-side, each of said elongated frames being mounted on said conveyor by a mounting means parallel to the direction in which the conveyor conveys, said mounting means placing said abrasion discs in the paths of the outer tip portions of said bristles, each of said abrasion disc groups including a motor for driving the abrasion discs of the respective groups independently of the motors of the other groups, each of said abrasion discs having a gear fixedly attached thereto which meshes directly with the gear fixedly attached to an adjacent abrasion disc and one of said gears of each group being driven by the respective motor of that group;
• said mounting means including a position adjustment means for allowing the angular positions of said disc series to be adjusted relative to one another and for allowing the selective adjustment of the distance of said disc series from brush backs conveyed by said conveyor.