SLUICE TYPE FEEDING DEVICE

摘要

A gravity feed device for a pneumatic material distributing system. The material is sluiced through a rubber hose by pinch rollers which move successively downward along the hose. The volume of the hose section between successive upper and lower rollers is increased by delaying the downward travel of the upper roller relative to the downward travel of the lower roller. Such volume increase protects sluiced granular material against crushing and jamming.