Expandable collet

Details Expandable collet Expandable collet

B - Operations, Transporting

65

H

242/74.1

B65H 75/24 (2006.01)

Patent

CA 1083120

EXPANDABLE COLLET Abstract of the Disclosure An improved collet for winding strand material, such as glass strands, is disclosed. The collet is capable of expanding under fluid pressure to firmly grasp a thin-walled covering tube onto which the strand material is wound. The collet comprises a sealed chamber into which the fluid enters under pressure, a piston which is movable by the fluid pres- sure, expandable rings, inexpandable spacers between the rings and at one end of the set of rings opposite the piston, a plurality of fingers or wings surrounding the rings and spacers and means for connecting the rings and fingers to one another, with the piston, rings and spacers being located along a common shaft and arranged such that fluid entering the chamber forces the piston towards the rings and spacers, creating pressure on the expandable rings and expanding them and the fingers connected thereto to form a relatively even collection surface and firmly grasp the covering tube.

296212

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