SCRAPER UNIT Russian patent published in 1995 - IPC

FIELD: earth-moving machinery. SUBSTANCE: device has side walls connected with bottom with its front earth intake trough. Cutting knives of front turnable shutter adjoin the trough from outside. Cutting knives serve as base for vertical wedge posts installed on shutter and augers arranged between posts and located in casing. Augers widen upwards and terminate in blade throwers and their common rotary drives. EFFECT: enlarged operating capabilities. 2 cl, 5 dwg