Patent ID: 8684796

Claim:
A floor grinding and polishing machine comprising: a base including; a shroud, first and second spindle carriers rotatably coupled to said shroud and having first and second axes of rotation relative to said shroud, respectively, said first and second spindle carrier axes of rotation substantially parallel and spaced from each other in an alignment direction relative to said base, first and second pluralities of rotatable spindles, each said spindle having an axis of rotation and capable of drivably supporting a floor-engaging abrasive tool, said first plurality of spindles carried by said first spindle carrier and distributed about said first spindle carrier axis of rotation, said second plurality of spindles carried by said second spindle carrier and distributed about said second spindle carrier axis of rotation, and first and second motors connected to said shroud and drivingly engaged with said first and second pluralities of spindles, respectively, whereby said spindles of each said first and second plurality of spindles are rotatably driven about their respective said axes of rotation by their respective said motor; and a floor-engaging handle coupled to said base and providing an interface between said machine and an operator in control of said machine, said handle defining a direction of operative movement along which said machine may linearly travel relative to the floor; said base having different first and second selective positions relative to said handle in which said alignment direction and said direction of operative movement are at substantially different angular positions relative to each other.