Escalator tread cleaning brush

An apparatus for cleaning the steps of an escalator, the escalator having parallel rail housings for mounting rails in the escalator, comprising:

• a brush bar extending generally perpendicular to the direction of motion of the steps and positioned between the rail supports above a step;
• a first set of relatively elongate bristles positioned proximate the forward edge of the brush bar for extending into the grooves in each of the steps for cleaning;
• a second set of relatively shortened length bristles positioned proximate the forward edge of the brush bar for contacting the tread of the steps for cleaning;
• a third set of bristles having a relatively elongate length for entering the grooves in the steps for cleaning, said first, second and third set of bristles being slanted from the vertical, said first and third set of bristles being slanted to assist in easing the bristles into the grooves;
• a cross bar for extending between the ends of the rail supports for contacting the ends of the rail supports;
• and
• at least one arm connected between the cross bar and the brush bar for positioning the brush bar above a step and fixing the brush bar relative to the rail housings so that motion of the steps of the escalator causes the sets of bristles to clean the steps as they pass underneath the brush bar.