| 摘要 |
The hopper has partitions dividing it into chambers for the different materials, and is emptied under gravity by a single mechanism.The flap (4), hinging on the body, empties the chambers in succession, and can be in one piece, with floors (5,8,14) at different heights for the individual chambers. One at least of the floors can have a bulkhead (20,22) protruding inwards, to prevent spillage of material sideways into an adjacent chamber when emptying. The space below a floor can be connected to an adjacent chamber. Stops can determine the angles of the individual floors on opening the flap, these being released when the flap is lifted again.
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