Hydraulically-powered rock spreader

Details Hydraulically-powered rock spreader Hydraulically-powered rock spreader

1984-12-21

1986-08-26

Novosad, Stephen J.

Road structure, process, or apparatus

Apparatus

Material distribution means

404101, 222330, 222414, 239669, 239689, E01C 1920

Patent

active

046079793

ABSTRACT:
A material spreader for spreading large rock over a wet concrete or other surface utilizes a pair of hoppers which are driven back and forth on a bridge support spanning the surface. A gasoline engine mounts above the hoppers and furnishes power for a reversibly-controllable hydraulic hopper drive motor. The rock is dispensed by a rough-surfaced hydraulically motor driven cylinder with the discharge opening being controlled by a pair of spring-loaded gates which position themselves in response to the size rock being spread and the direction of travel of the spreader.

REFERENCES:
patent: 1040888 (1912-10-01), Comrie
patent: 1206751 (1916-11-01), Clarkson
patent: 1749805 (1930-03-01), Elliott
patent: 2011417 (1935-08-01), Robb
patent: 2539253 (1951-01-01), Jorgensen
patent: 2989930 (1961-06-01), Flowers
patent: 3751174 (1973-08-01), Layton
patent: 4280800 (1981-07-01), Bunn
patent: 4349294 (1982-09-01), Allen
patent: 4411554 (1983-10-01), Gratzfeld

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