Expandable winding mandrel for retaining a substantially cylindr

Details Expandable winding mandrel for retaining a substantially cylindr Expandable winding mandrel for retaining a substantially cylindr

1987-06-04

1988-08-16

Gilreath, Stanley N.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 72R, B65H 5454

Patent

active

047638508

ABSTRACT:
The winding mandrels for expanding the substantially cylindrical thin walled yarn holders of a spinning or winding machine each have a plurality of gripping pieces distributed approximately uniformly about their circumference. The gripping pieces are each pivotable on a pivot axis transverse to the longitudinal axis of the winding mandrel supported in a bearing member of the winding mandrel. The gripping pieces are connected with slidable pushing members distributed as a group coaxially around the longitudinal axis of the winding mandrel by linking members movable over dead points and the pushing members are slidable jointly by at least one pushing device.

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