Drum for winding up material which is being drawn

Details Drum for winding up material which is being drawn Drum for winding up material which is being drawn

B - Operations, Transporting

65

H

242/67

B65H 54/54 (2006.01) B65H 75/24 (2006.01)

Patent

CA 1231693

ABSTRACT A drum for winding optical fibres consists of an envelope of an airtight plastic material having a certain degree of resiliency. The envelope defines an internal chamber main- tained at a pressure somewhat higher than ambient, presents centering recesses permitting engagement with a drive spindle, and is equipped with a valve for varying the pres- sure inside the chamber so as to adjust the tension in the wound fibre.

453049

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