| 摘要 |
<p>The belt (1) is carried by cables (2) and has a certain inherent longitudinal rigidity and reinforcement. The cables and the belt are driven by a common driving drum (3c). The driving drum is provided with recesses (7a) in order to house the cables and a recess (7b) in the central portion of the driving drum in order to guide the bottom portion of the belt. The recesses have such a depth that both the centre of the cables and the reinforcement in the base portion of the belt are located at the same distance from the centre of the driving drum on a common diameter.</p> |
