DRAGLINE
A dragline has two booms at a ninety degree angle with the dragrope between them. Each boom has a variable speed hoist mechanism and both hoist ropes are connected to the bucket. Either boom can be used as a digging boom, with the other serving as a dumpling boom, and relative hoist speeds are contr...
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| Format: | Patent |
| Sprache: | eng ; fre |
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| Zusammenfassung: | A dragline has two booms at a ninety degree angle with the dragrope between them. Each boom has a variable speed hoist mechanism and both hoist ropes are connected to the bucket. Either boom can be used as a digging boom, with the other serving as a dumpling boom, and relative hoist speeds are controlled to move a filled bucket to a dumping position under the dumping boom and back to start position under the digging boom. |
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