CONCRETE PUMP Russian patent published in 1995 - IPC

FIELD: concrete-related work. SUBSTANCE: concrete pump is provided with: a hopper mounted on a frame and having a sloped hatch and shutter, and mixer. The end of the mixer is located in the hatch. There is a limiting wall and seal fixed on the end of mixer in front of the hatch. The seal matches the outline of the hatch. The hopper is fastened on the frame and connected to the eccentric axle by a hinge. The distance between the axle of hinge and the farthermost hatch side of the hopper is larger than that between the axle of hinge and the farthermost end edge of the mixer. EFFECT: higher efficiency. 2 dwg