Two-way collapsible mandrel with winding compression
AssigneeWindings, Inc.
InventorRonald E. Zajac
Life of this patent
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Abstract
In a winding wound in a figure-8 configuration, such as a universal winding which is known in the textile industry, the endforms of a spindle on which the winding is wound each respectively include openings enabling the projection therethrough of collapsing members such that the ends of the winding may be compressed to a substantially flat plane with the innermost winding. The mandrel is formed in two movable sections such that the two sections collapse towards one another with application of the compression force applied to each of the endforms.
Claims14
A method of forming a compressed winding, comprising the steps of:
- winding a material on a winding mandrel having an endform at each end thereof in any desired configuration;
- and
- subsequent to completion of the winding, compressing the respective opposite end faces of the winding on said winding mandrel to a substantially straight line configuration by the actuation of oppositely disposed winding compression members engaging said end faces.
Apparatus for compressing the opposite end faces of a winding wound in any desired configuration, comprising:
- a mandrel on which the winding is wound, said mandrel including endforms at the opposite ends thereof, each of said endforms including at least one opening extending through the end form;
- and
- winding compression means respectively retractable into and out of said at least one opening in each of the endforms for compressing the end faces of the winding into a substantially straight line configuration.
Dependencies are inferred from the claim text.