Mechanical street sweeper

Abstract From the Canadian patent

A self-propelled mechanical street sweeper comprising a production truck cab and chassis, the frame beams of which have been modified by removing rear portions thereof extending behind the rear axle. The sweeper comprises side brushes a pick-up, brush, a conveyor a hopper and rear suspension mounted above and forwardly but not rearwardly of the rearaxle. The conveyor means is mounted forwardly of the pick-up brush adjacent the rear axle of the chassis, and has a uniform width throughout its length which width is substantially the same as the width of the pick-up brush. The rear suspension includes bias means mounted between the frame beams and the rear axle for biasing the rear axle away …