HOPPER FOR LOOSE MATERIALS Russian patent published in 1997 - IPC

FIELD: mechanical engineering; hoppers for grain cleaners and seed cleaning lines. SUBSTANCE: loose material passes along charging branch pipe 7 into container 8 made of flexible material being stretched out before charging by means of springs 9 compressed at this moment. In process of charging, springs 9 extend and flexible container 8 made to suit form of housing 1 moves towards side walls 2 and bottom 3 made in form of grates 5 reinforced by ribs 6. When container is filled with material to charging branch pipe level, charging is stopped. At discharging, when pressure of loose material onto flexible container 8 decreases, the latter is lifted under action of springs 9, and material is forced out through discharge branch pipe onto transportation vehicle. EFFECT: reduced metal usage. 4 dwg