| 摘要 |
The individual rollers (1, 2, 3) of the roller path are each driven via a friction wheel angular gear (4), a common drive being provided for a plurality of rollers. One of the friction wheels (5) of the friction wheel angular gear is adjustable in this process, in order to affect the transmission ratio if, for example, it is desired to reduce the speed or stop the material being transported. Adjustment of the friction wheel angular gear may be controlled by the material being transported itself, or also by other devices and/or by hand. <IMAGE>
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