DEVICE FOR MATERIAL GRINDING Russian patent published in 1995 - IPC

FIELD: manufacture of building materials. SUBSTANCE: device has housing 1 in which are disposed drive 5, conducted 6 and additional conducted shafts whose shafts are mounted parallel to, or coaxially, or with the possibility of intersection relative to the conducted shaft and are disposed symmetrically or asymmetrically relative to the longitudinal axis of the drive shaft. The rotational planes of the additional conducted working bodies coincide, or are parallel, or intersect. EFFECT: enhanced efficiency of grinding. 10 dwg