| 摘要 |
The device comprises a movable belt (4) operated by means of a traction roller (13) cooperating therewith. The movable belt (4) has the peculiarity of being interposed between a rotating work cylinder (16) and an operator of a tanning machine. The belt (4) being entrained around and adjustably tensioned by separate free rollers (5,6,7) which are parallel to each other. The device also comprises safety members for the operator's control of the machine, as well as means for determining the direction of rotation of the traction roller (13).
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