Abstract: The present invention is a rotary brushing tool and method of constructing the rotary brushing tool. The rotary brushing tool comprises a hub portion and a wheel portion. The hub portion has a pair of hub elements, where each hub element includes a central opening, an annular retaining plate portion that extends radially from the central opening, and a tubular portion that extends axially from the central opening. Placing the tubular portions of the hub elements in opposition forms a hub channel that extends radially from the central opening. The wheel portion includes bristles arranged in the hub channel to extend substantially radially from the central opening, and a castable material for retaining the bristles. Pouring the castable material into the hub channel and allowing it to cure, forms a hub that retains the bristles.

Abstract: A knot brush with a knot plate having a plurality of perforations disposed circumferentially about the plate near an outer rim. A plurality of mounting holes are formed through the knot plate and are spaced apart from one another. Each mounting hole is located at a radial position that is inward from the perforations. A plurality of wire bundles are attached to the knot plate. Each wire bundle includes a center portion extending through a perforation and two end portions twisted together securing the bundle to the knot plate. Two side plates are attached to the knot plate. Each side plate includes protrusions extending out from the side plate and into the mounting holes. One side plate is punched into a protrusion on the other side plate forming an interlocking button that extends from the surface of the side plate and locking the side plates together.

Abstract: The present invention is a rotary brushing tool and method of constructing the rotary brushing tool. The rotary brushing tool comprises a hub portion and a wheel portion. The hub portion has a pair of hub elements, where each hub element includes a central opening, an annular retaining plate portion that extends radially from the central opening, and a tubular portion that extends axially from the central opening. Placing the tubular portions of the hub elements in opposition forms a hub channel that extends radially from the central opening. The wheel portion includes bristles arranged in the hub channel to extend substantially radially from the central opening, and a castable material for retaining the bristles. Pouring the castable material into the hub channel and allowing it to cure, forms a hub that retains the bristles.