| 摘要 |
An apparatus for wrapping a stack of articles with a stretch foil in which the satellite has a deflecting roller over which the foil passes and which is braked by a hydraulic motor in proportion to the speed of the deflecting roller. An arm can swing out and carries a mirror to monitor breakage of the foil, the mirror intercepting a light beam from a stationary force on the machine frame. For both the brake and the foil-break monitor, no slip rings are required.
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