| 摘要 |
A driver gear transmits torque to a continuously driven gear by way of a toothed belt, and the driven gear transmits torque to an intermittently driven pulley for an endless conveyor which carries pockets for arrays of cigarettes in a packing machine. The extent of wear at least upon the belt is ascertained by a first signal generator which monitors the angular velocity of the driver gear, and the actual speed of the driven gear is ascertained by a second signal generator. The thus obtained signals are processed into signals denoting the desirability to arrest the prime mover for the driver gear and/or displaying and/or otherwise indicating, such as signalling, the extent of wear upon the belt.
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