Apparatus for cleaning the steps of an escalator

Details Apparatus for cleaning the steps of an escalator Apparatus for cleaning the steps of an escalator

1990-06-29

1991-08-27

Valenza, Joseph E.

Conveyors: power-driven

Conveyor having impinging fluid to feed, shift or discharge...

Having cleaning means

198333, B65G 4518

Patent

active

050426419

ABSTRACT:
An apparatus for cleaning escalator steps having grooved front surfaces cleans during the operation of the escalator. A brush extending across the entire width of each step is positioned under the rear edge of the tread. The bristles of the brush press against the front surface of the adjacent step when the steps are in predetermined regions of the escalator. The relative motion of the steps as they move from the horizontal to the inclined and back to the horizontal regions creates a relative vertical motion between the brush and the front surface for the cleaning of the front surface. The front surface thus is cleaned twice per revolution of the step conveyor by being moved against the brush bristles, once from top to bottom and once from bottom to top, practically across the entire height of the step.

REFERENCES:
patent: 1857808 (1932-05-01), Diederichs
patent: 3151726 (1964-10-01), Nelson
patent: 3678533 (1972-07-01), Cravits
patent: 4514872 (1985-05-01), Hopkins

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