Carpet brush attachment for a floor treating machine

DETAILED DESCRIPTION Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent is: 1.
A carpet brush attachment for a floor treating machine comprising: (a) a circular surface engaging plate normally horizontally disposed and support for the machine on a surface, (b) said plate having a circular hub extending axially and vertically therefrom for connection with a source of power for rotation of said plate, (c) a multiplicity of spaced extensions formed on said circular plate adjacent the outer edge thereof and spaced radially outwardly from said circular hub and parallel to the longitudinal axis of said hub, (d) a ring brush having an inner diameter greater than the diameter of said plate and surrounding said plate, (e) said ring brush having spaced holes adjacent the inner edge thereof through which said extensions freely extend for contact of said ring brush by said extensions for rotating said ring brush when said plate is rotated and allowing said brush to move upon said extensions and rest floating by on a carpeted surface with the plate upon the surface and supporting the machine to which the brush is attached.
2.
The device of claim 1 in which (a) each of said extensions has a stop on the upper end thereof, and (b) a spring interposed between the stop and said ring brush normally urging said brush downwardly relative to said plate.
3.
The device of claim 2 in which said extensions are cylindrical in formation.
4.
The device of claim 1 in which said extensions are cylindrical in formation.
5.
The device of claim 1 in which said plate is formed with stop means for limiting the movement of said ring brush on said extensions.
6.
The device of claim 5 in which said stop means is an annular flange.




Description:
SUMMARY The invention relates broadly to floor and carpet treating machines and more particularly to a rotary disc brush unit used in such a machine.
The aforementioned type of machine is presently used to shampoo carpets and scrub and polish floors, and with the weight of the machine and brush on a carpet, excessive friction is created which requires considerable driving torque to rotate the brush