TOOTH OF BUCKET OF EARTH-MOVING MACHINE Russian patent published in 1994 - IPC

FIELD: ground excavation and transportation. SUBSTANCE: middle part of front surface is made in form of surface of cone whose vertex is directed at the same time upward and to the side opposite to direction of tooth motion. Side parts are made in form of parts of surfaces of cones whose vertexes are directed simultaneously downwards and to the side of tooth motion. Angles at cone vertexes are similar. Vertical axes of cones are located in frontal plane. EFFECT: higher efficiency. 3 dwg