Winding – tensioning – or guiding – Strand tensioning device – Clamp
Patent
1979-04-05
1981-11-24
Schroeder, Werner H.
Winding, tensioning, or guiding
Strand tensioning device
Clamp
112254, D05B 4700, D05B 4704, B65H 5922
Patent
active
043019781
ABSTRACT:
A tension device for sewing machines is disclosed having thread tensioning discs and a linear actuator for applying a compressive force between the discs. The invention is characterized in that for any given tension setting of the device, the applied compressive force, or tension, remains constant regardless of any variations in the spacing of the discs due to variations in the thread thickness, up to the range of travel of the linear actuator.
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Herr John A.
Jaffe Wolfgang
Bell Edward L.
Falik Andrew M.
Schmidt Edward P.
Schroeder Werner H.
Smith Robert E.
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