| 摘要 |
<p>A conveying device, particularly suited for lifting purposes comprises a load holding carriage mounted within a hollow column for longitudinal reciprocating movement in the column, the carriage having load holding arms which project transversely from the column through a longitudinal slot in the wall of the column. The carriage has rollers which engage the walls of the column internally to guide the same and a traction chain which is guided around reversing pulleys at the two ends of the column is accommodated within the column, has its opposite ends attached to opposite ends of the carriage to form, with the carriage, an endless loop the run of which not containing the carriage passes the same within the column.</p> |
