BUILDING MATERIAL GRAVITATIONAL MIXER Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: mixer has a drum with a tyre and blades on inner and outer surfaces. A two-link joint is crosswise mounted on the drum bottom, one link is connected to an axle, the joint has a lock. The joint may be made from two semiaxles with slots for pins, the semiaxles are connected by a nut with right and left thread. EFFECT: improved structure. 2 cl, 4 dwg