Multi-speed brush control

A - Human Necessities – 47 – L

Patent

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15/77, 342/29.3

A47L 11/40 (2006.01) A47L 11/16 (2006.01)

Patent

CA 1158343

M 01 R-269P ABSTRACT OF THE DISCLOSURE An improvement for floor maintenance equipment employing electrically driven scrubbing or polishing brushes including means for varying the speed of the brush motors. Two brush speeds are provided by switching appar- atus which change the interconnection of the brush motors from series to parallel and from parallel to series. This results in a substantial change in motor speed and power.

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