Device for the differential braking of traveling threads, wires or the like
AssigneeSobrevin Societe de brevets industriels-Etablissement
InventorBruno Motta
Life of this patent
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Abstract
A device for braking traveling threads, wires or the like, in particular for use for the entry of the filling thread in looms (8), having a plurality of brake parts (B, B') which are under spring action with respect to each other and between which the thread (5) travels; in order to obtain optimal use, a cyclic change in the brake force is derived from the rotation by motor drive of one of the brake parts (B, B', C, C').
Claims8
A device for differential braking of traveling elongated, flexible material including threads, wires and the like, particularly for use upon entry of filling thread in a loom, comprising
- brake parts which are arranged with spring action with respect to each other and between which the material travels,
- one of said brake parts comprising a rotatable shaft,
- a motor for driving said shaft in rotation,
- another of said brake parts comprising a plate which resiliently abuts said shaft, and
- said shaft having a window formed of reduced cross section on a part of circumference of said shaft, in which said material passes without braking force, whereby rotation of said shaft results in a change of braking force on the material.
Dependencies are inferred from the claim text.