| 摘要 |
The disclosed unloading machine, which is foldable in height to facilitate its insertion into a ship or the like, comprises an endless train of circular buckets, with axial tension elements therebetween, a foldable vertical leg including two parallel guide tubes, the buckets being movable down the first tube and up the second tube, a boom which is swingable vertically about a pivot at the lower end of the leg, a first conveyor wheel for directing the buckets out of the lower end of the first tube and outwardly along the boom, a second wheel on the outer end of the boom for directing the buckets downwardly into a suspended catenary flight where bulk material is dug, a third wheel for directing the buckets from such flight into the lower end of the second tube, a fourth wheel for directing the buckets from the upper end of the second tube and then downwardly to dump the material, a fifth wheel for directing the buckets upwardly, a sixth wheel for directing the buckets into the upper end of the first tube, the leg having upper and lower sections with a hinged joint therebetween at the front of the leg to provide for forward and upward folding movement of the lower section whereby the vertical height of the machine is reduced, and a power cylinder for causing such folding movement.
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