| 摘要 |
A brake for slowing down a reel of wrapper web when the demand for the web by the wrapping machine diminishes. The shaft of the reel of the web carries around with it by means of a spring a mounting for a brake arm. A cam on the reel shaft bears against a cam follower caused by the brake arm to apply the brake. Due to the spring, deceleration of the reel shaft (caused by diminished tension in the wrapper web) allows the cam to rotate relative to the follower so that the brake is applied harder.
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