HOPPER FOR LOOSE MATERIALS Russian patent published in 2002 - IPC

FIELD: materials handling facilities. SUBSTANCE: hopper has frame with longitudinal and cross slots in walls over frame perimeter installed under hopper discharge hole. End parts of longitudinal and cross braces of grid are fitted in said slots. Frame connected with hopper housing is installed for vertical displacement along guides. Drive to provide movement of grid in horizontal plane in transverse and longitudinal directions relative to frame is installed on frame. Grid has pins, each consisting of two parts connected by spatial joint. Lower part is rigidly secured on grid. Holes for fitting in upper parts of pins from side of their free ends are provided in bottom part of hopper. EFFECT: provision of material bridge breaking and loosening of material in zone of wall of bottom part by moving grid and pins. 5 dwg