Winding – tensioning – or guiding – Coil holder or support – Radially expansible or contractile
Patent
1994-09-02
1996-03-19
Darling, John P.
Winding, tensioning, or guiding
Coil holder or support
Radially expansible or contractile
B65H 7524
Patent
active
054997801
ABSTRACT:
A removable bladder assembly for insertion into the core of a roll support sleeve having roll gripping lugs radially displaced by the bladder assembly includes an outer flexible bladder tube and an inner rigid tube for supporting the outer tube. A coupling member is secured to the tubes at each of the tube ends to seal and clamp the tubes together. The member includes a nut axially threaded to the inner tube bore and having an outwardly extending flange. A T-shaped cap has a section over the outer tube and a section over the nut flange. The cap has a flange depending from between the sections and located between the nut flange and the ends of the two tubes. An O-ring and washer like ring are in a rigid tube recess between the rigid tube end and the cap flange. An annular wedge shaped recess is in the cap section overlying the outer tube radially aligned with the O-ring. Axially compression of the O-ring by the nut flange radially expands the O-ring deforming the outer tube into the recess to effect a clamping seal between the outer and inner tubes. A plug is secured in each end of the sleeve and include a pilot pin for receiving the nut bore. A journal extends from each plug beyond the sleeve.
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Convertech
Darling John P.
Squire William
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