Patent ID: 7178753
Filing Date: 2007-02-20
Classification: B65H

Abstract:
1. A filament brake comprising: a rotatably journaled drum defining a drum axis (X); said drum having a plurality of peripherally-extending take-up slots formed thereon for accommodating a plurality of filaments therein, each filament taking up one slot and being wound around the drum several times; said take-up slots being spaced one from the other in the direction of said drum axis (X); and a drive wheel adapted to cooperate with means for adjusting the torque of said drum, wherein each of said slots has an arcuate shape viewed in cross section and includes a filament intake region and a filament run-out region axially offset from each other; said drum having a first diameter at each intake region and a second diameter at each run-out region; and, said first diameter is greater than said second diameter.