Flexible adjustable wedge
AssigneeCulbro Machine Systems
InventorMichael Chopko
Life of this patent
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Abstract
A flexible adjustable wedge of tetrahedronal structure is provided wherein four swivel-jointed arms are attached at their respective ends by pin connections. Flexible adjusting arms provide dimensional stability by interconnecting either opposing corners or opposing arms of the tetrahedronal wedge. The adjusting arms are provided with some degree of flexibility in order to allow the wedge to automatically conform its size to minor variations in the flat width of the film passing thereover. Where changes in overall size of the wedge are desired, the adjusting arms can be easily lengthened or shortened.
Claims7
A flexible adjustable wedge for expanding a tubular member in apparatus for applying said tubular member over an article, said wedge comprising:
- four arms pivotally connected end-to-end by means of swivel joints;
- at least one adjusting arm interconnecting two of said arms;
- and
- compressible spring adjusting means formed in said adjusting arm to permit said wedge to flex.
A flexible adjustable wedge for expanding a tubular member in apparatus for applying said tubular member or an article comprising:
- four swivel joint arms connected end to end at pivot four arms pivotally connected end-to-end by mans of swivel;
- two adjusting arms interconnecting opposing swivel joints;
- and
- compressible spring adjusting means formed in said adjusting arms to permit said wedge to flex.
Dependencies are inferred from the claim text.