| 摘要 |
An elevator-conveyor for carrying bulk materials upwards or downwards over a path which extends at least in part vertically or at a slope between two different levels. The conveyor comprises two belts which are pressed against each other at their edges by pneumatic or hydraulic fluid pressure in such a manner that the material is fully enclosed. The pressure fluid acts either in two separate boxes along whose open sides the belts are tightly conducted, or in a single box through which both belts run in common. |
