Patent ID: 6168110
Filing Date: 2001-01-02
Classification: B65H

Abstract:
An apparatus for adjusting the expansion of a mandrel which is capable of seating a plurality of bobbins having cores on a single spindle, comprising: a rod slidable along a fixed axis; a first expansion member fixed to said rod and concentric with said fixed axis, a second expansion member concentric with said fixed axis; a resilient member between said first expansion member and said second expansion member; and an expandable-contractible mandrel encircling said expansion members and on which said plurality of bobbins are receivable, whereby sliding of said rod in one direction effects movement of said first expansion member into expanding contact with said mandrel for expanding same against a bobbin core, and sliding of said rod also acts upon said resilient member to effect movement of said second expansion member into expanding contact with said mandrel for expanding same against a different bobbin core.