Effects Of Fire On Air D A State Of Knowledge Review
1978
A side brush arrangement for a car wash including parallel-mounted primary and secondary brushes rotating in opposite directions. The brushes are inclined at an attitude of about 20 DEG from the horizontal away from the direction from which the vehicle approaches to prevent damage to external appendages such as radio antennas. The manner of support of the primary brushes is such that they can pivot in and out while remaining parallel to the vehicle sides to accommodate different vehicle contours and widths while being inclined at a shallow angle. The primary brush is between twelve and fifteen feet in length so as to engage at least 50% of the overall length of a vehicle being washed and to perform a thorough scrubbing on the vehicle. A segmented brush with varying bristle stiffness is disclosed. The secondary brush shaft is connected via a universal joint to the shaft of a horizontal wheel brush so that a single motor may drive both brush shafts.
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