Device for emptying sacks containing earth

摘要

The surround frame (3) includes a bag or sack hanger (1) plus a funnel-shaped support (16) for the bag base and a clamp for the operable bag edge or fitted nozzle (17) etc. The hanger raises th bag and tensions it to ensure total emptying, and a fixer (8) on the top crosspiece of the frame holds the bag by its top loops (9). The frame has top side mountings (10) to take the crane or hoist-handled crosspiece (7). The frame is composed of tubes (12) to take inserted posts (13) which are supported from below by springs (2) on supports (14). The mountings (10) are fitted out with angled centering sheets (11) and the springs can adjust vertically within the respective posts, using pocket fittings on the crosspiece to take a crossbar suspended from the crane etc hook. As the bag empties and loses weight so the springs in turn relax and hold the bag taut, smoothing out the bottom surface (22) and removing possible blockage etc creases and pleats for total emptying.