BULLDOZER Russian patent published in 1995 - IPC

FIELD: earth moving machines. SUBSTANCE: bulldozer has base vehicle, sectional breast, pushing beams, power cylinders, spatial frame with braces and guide props. Sectional breast is made up of upper and lower parts. Lower part of breast is secured on spatial frame. Upper part of breast is connected with slides mounted on guide props, and may be moved in vertical plane with the aid of additional power cylinder. Placed inside frame are limit and guide plates and rotors with power drives. EFFECT: improved efficiency. 4 cl, 7 dwg