Lead-screw elevator
This invention relates to a feed screw elevator by the feed screw elevation principle, which eliminates the factors to take passengers in dangers. The elevator is not formally listed in the line of the general elevators. Comparing with general ones, the invention can avoid the energy shortness probl...
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| Format: | Patent |
| Sprache: | eng |
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| Online-Zugang: | Volltext bestellen |
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| Zusammenfassung: | This invention relates to a feed screw elevator by the feed screw elevation principle, which eliminates the factors to take passengers in dangers. The elevator is not formally listed in the line of the general elevators. Comparing with general ones, the invention can avoid the energy shortness problems and the three-phase plug for families. |
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