SOIL TILLAGE WORKING MEMBER Russian patent published in 1997 - IPC

FIELD: agricultural engineering. SUBSTANCE: working member has wedge with nose portion and blade and strengthening layer on one of wedge working surfaces. One of wedge working surfaces is made with undercutting, and strengthening layer is made in form of wear resistant covering with additional blade projecting beyond the limits of wedge. Covering is arranged in undercutting of working surface and is rigidly connected with the latter. EFFECT: increased wear resistance and improved quality of soil tillage. 7 cl, 3 dwg