WORKING TOOL FOR CENTRIFUGAL FERTILIZER SPREADER Russian patent published in 2001 - IPC

FIELD: agricultural engineering. SUBSTANCE: working tool has flat centrifugal disk, main blades mounted on disk, and segments with blades arranged between main blades. Segments are positioned so that their inclination relative to disk may be changed. When segment inclination angle is changed, segments are rotated about pivot joints arranged at right angle to blades positioned forward of them. Inclination angle of segments arranged in gap between two main blades is decreasing in the direction of rotation of disk. Working tool may be used for surface application of mineral fertilizers and lime materials, as well as other bulk products. EFFECT: improved uniformness of fertilizer spreading, increased width and improved efficiency of working tool. 3 cl, 3 dwg