Brushing – scrubbing – and general cleaning – Machines – Brushing
Patent
1975-03-03
1977-01-11
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Machines
Brushing
56218, 280405A, E01H 104
Patent
active
040019080
ABSTRACT:
A sweeping apparatus is provided with means for coupling to a motorized vehicle for towing therebehind and brushing dirt, debris, and the like off a surface over which the vehicle may pass. The sweeper comprises a housing having a transversely extending sweeping brush rotatably mounted in a generally horizontal surface engaging configuration adjacent a bin structure for collection of the sweepings. The brush is directly driven by the surface engaging wheels through a frictional engagement between one or both of the wheels and expandable drive capstans coaxially affixed to the brush. A tow frame is pivotally mounted to the housing at the forward end, which frame is adapted for releasable coupling to the towing vehicle. Means are provided for controlling the pivotal angularity between the tow frame and the housing which provides selectivity in adjusting the degree of interengagement or nonengagement between the brush and the swept surface. Lifting fork receiving channels are positioned in parallel spaced relationship on opposite sides of the housing providing a means for lifting and inverting the housing to eliminate the dirt and debris collected in the bin area.
REFERENCES:
patent: 1268698 (1918-06-01), Drummond
patent: 2546531 (1951-03-01), Vutz
patent: 2709269 (1955-05-01), Williams
patent: 2717654 (1955-09-01), Andersen
patent: 3354489 (1967-11-01), Ehrlich
patent: 3493987 (1970-02-01), Longnecker
patent: 3568232 (1971-03-01), Swanson
patent: 3713284 (1973-01-01), Dankel et al.
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