| 摘要 |
A hydraulic lift table is used, along with lift machinery with hooks, winches, and motors, for the movement of goods. This invention is a lifting device that contains a hose (A) sealed at both ends or a tube likewise sealed at both ends. Both the hose (A) and the tube are axially pliable. By regulating vacuum pressure in the hollow of the hose (A) or tube, the length of the hose or tube can be regulated and therewith effectuate a raising or lowering of goods attached to the hose (A) or tube.<IMAGE> |
