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US 4,398,679 AGranted
Externally hooked storage spool for rotary winding on an unwinding
AssigneeAgfa-Gevaert
InventorsAchim Kluczynski, Erik Altmann
Life of this patent
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Abstract
The invention relates to an externally hooked storage spool for rotary winding on and unwinding elastic materials comprising a cylindrical core and two flanges, the core having wing-like catching members for catching the end of the elastic material while the spool rotates and one holding hook and one pin to prevent unhooking in an opening between the wing like catching members and the end of the strip is provided with a hammer-shaped first cut in which are produced at least one holding hole and one hole to prevent unhooking.
Claims7
In combination with a storage spool,
- a band shaped material for winding on the spool,
- a cylindrical core of the spool which contains at least one core opening,
- means externally positioned on the storage spool engageable with openings defined in the band-shaped material for hooking into the external engageable means, and wing-like catching members on the spool for catching the end of the band-shaped material while the spool rotates, the wing-like catching members being positioned axially on each side of the opening in the core,
- said external engageable means being at least one hook and one means to prevent unhooking and being positioned in the opening in the core between said catching members,
- a hammer-shaped cut at the end of the band,
- and at least one hole defined in the hammer-shaped cut end for securing the band-shaped material to the spool and at least one hole defined in the cut end to prevent unhooking,
- whereby catches and safety devices are provided to prevent unhooking of the band.
4 more elements
Dependencies are inferred from the claim text.