Control system for horizontal vehicle-scrubbing brush

Details Control system for horizontal vehicle-scrubbing brush Control system for horizontal vehicle-scrubbing brush

1979-03-02

1980-04-08

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Machines

Brushing

15DIG2, B60S 306

Patent

active

041964861

ABSTRACT:
A horizontal scrubbing brush for a vehicle-washing apparatus, vertically guided in lateral tracks on a portal frame, is suspended from two sets of cables, one set leading to a counterweight, the other being linked with a piston of a single-acting pneumatic cylinder which is pressurized to raise the brush and is cut off to let the brush descend under its own weight partly balanced by the counterweight. The piston head within the cylinder is provided with resilient peripheral lips which let the air escape slowly during the descent of the brush and also exert a braking action during its ascent.

REFERENCES:
patent: 3593358 (1971-07-01), Hofmann
patent: 3594843 (1971-07-01), Sesia et al.
patent: 3688329 (1972-09-01), Capra
patent: 3725967 (1973-04-01), Capra

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