HOPPER Russian patent published in 1995 - IPC

FIELD: materials handling; transportation, storage and discharge of materials. SUBSTANCE: transportation container has housing and drive shaft arranged along container vertical axis with agitators mounted on drive shaft. Housing is made in form of shell widening downwards which precludes bridging of material. Made in lower portion of housing is side outlet slot closed by shutter with drive. Shutter has backing up gate on discharge hole to prevent spilling of material. To provide positive guaranteed discharge of material from container mounted on vertical drive shaft at the bottom are several blades in form of curved plates secured with their concave side to different-length spokes at angle relative to direction of rotation. To prevent consolidation of material on the bottom, spokes have sharp edges over entire length tilted towards side of drive shaft rotation. To ensure metered discharge of material side slot of housing is made equal to or slightly bigger in height than height of blades. EFFECT: enlarged operating capabilities. 3 cl, 2 dwg