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US 4,633,914 AGranted
Take-up tension control
AssigneeMilliken Research Corporation
InventorWilliam B. Carry
Life of this patent
Estimating the term…
Abstract
Apparatus and method to detect high tension in a web material being taken-up and cutting off the take-up device upon such detection to prevent stretching and necking of the fabric being handled. The detection device provides a time delay between detection of the condition of high tension and deactivation of the fabric take-up apparatus.
Claims1
A machine to produce and take-up a running length of fabric comprising:
- a fabric producing machine, a take-up mechanism operably associated with said fabric producing machine to take-up fabric produced on said machine, drive means operably associated with said mechanism and detector means located between said machine and said mechanism to automatically detect a pre-determined tension above that desired in the length of fabric and de-activate said drive means upon such detection, said detector means including a disc shaped feeler adjacent the path of the running length of fabric and a control circuit with a switch thereon connected to said feeler wherein said control circuit including a time delay means therein to delay deactivation of said drive means upon the detection of the pre-determined tension.
Dependencies are inferred from the claim text.