AN IMPROVED R3AD-SWEEPING VEHICLE
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A ROAD-SWEEPING vehicle is I-1 shown in patent No. 700,415, which comes from Lewin Road Sweepers, Ltd., Victoria Works, Hill Top, West Bromwich. The vehicle shown is a small model and is intended for sweeping factory floors and for road work.
In such a vehicle, the rotary brush must perforce press fairly heavily on the floor, and this tends to spread the bristles sideways, tending to leave a double trail of rubbish behind the machine. The aim of the improved design is to prevent this.
The drawing is a general arrangement of the machine, which has many ingenious features incorporated in it. In action, the brush (I) sweeps the floor and flings the refuse into the intake (2) of a running conveyor (3). This lifts the sweepings and discharges them at the top into space 4 in the body, This is normal Lewin practice.
The subject of the patent is the use of spray jets of water, as shown at 5. These are spaced along the length of' the brush, but the two outermost jets are located wide of the brush and project the water spray at an inward angle. This causes any refuse which may have escaped sideways to be driven back into the path of the brush. The water spray is small in quantity but high in pressure, so that it can readily shift the sweepings.