Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1977-05-19
1978-06-06
Mautz, George F.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 72R, B65H 7524
Patent
active
040931374
ABSTRACT:
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 pressure, 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.
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Briar Thomas J.
Reese Walter J.
Curley John E.
Mautz George F.
McDonald Alan T.
PPG Industries Inc.
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