WORKING TOOL OF TILLAGE UNIT Russian patent published in 2004 - IPC

FIELD: agricultural engineering, in particular, equipment for cultivation of fields and agricultural lands heavily contaminated with weedage. SUBSTANCE: working tool has flat disk with central mounting opening and annular peripheral cutting edge. Teeth are formed on side surface of flat disk. Teeth are made in the form of hollow cylinders positioned perpendicular to disk side surface alternatively on left-hand and right-hand sides. One end of each tooth is inserted into annular flange of orifices. Orifices are arranged in equally spaced relation between annular cutting edge and mounting opening. EFFECT: increased efficiency in eliminating of weedage from fields and enhanced reliability in operation. 2 dwg