Patent ID: 7326106

Claim:
Apparatus for treating flooring surfaces, the apparatus comprising: a motor having a rotatable drive shaft; and a drum assembly driven by the drive shaft, the drum assembly comprising: a first assembly including a first support having a plurality of rotatable treating shafts rotatably located thereon and operably connected to the drive shaft by a first belt so that rotation of the drive shaft results in rotation of each of the treating shafts in a first direction, each of the treating shafts having a surfacing disc operatively connected to a first end thereof for rotation in the first direction for treating of a flooring surface, a second assembly including a second support fixedly connected to the first support and configured to receive a second end of a selected one of the rotatable treating shafts opposite the surfacing disc associated therewith, a sheave fixedly connected to the second support, and a second belt which extends around the sheave and the second end of the selected rotatable treating shaft, wherein during operation of the apparatus, substantially continuous rotation of the drive shaft drives the first belt which results in substantially continuous rotation of the rotatable treating shafts including the selected treating shaft, and wherein the rotation of the selected treating shaft is transferred to the sheave by the second belt so as to cause the first and second supports to substantially continuously rotate in a second direction opposite the first direction.