| 摘要 |
An apparatus for attaching to building scaffolding for conveying, usually vertically, building materials from the ground to various levels. The apparatus is sectional for increasing its height as the height of the building increases. Work carriers are transported upwardly and automatically discharged from their lifting means to a return loop which communicates with drive means to transport the carriers back to the bottom of the apparatus where they are automatically placed ready to travel upwardly with an additional work load.
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