Apparatus for feeding one or more fibre threads
AssigneeAplicator System AB
InventorKjell Sand
Life of this patent
Estimating the term…
Abstract
Apparatus for feeding one or more fiber threads, e.g., of glass, at an adjustable feeding rate. At least two synchronously driven feed rollers forming at least one nip for the fiber thread and consisting of a first motor driven roller and a second co-rotating roller. The motor driven roller and/or the co-rotating roller are/is provided with one or more, each in its respective peripheral slot in the cylindrical mantle surface of the roller housed O-ring of an elastic incompressible material, e.g., rubber. The O-ring bears on the peripheral surface of the adjacent roller to transmit the rotary motion by means of friction.
Claims8
Apparatus for feeding at least one fiber thread at an adjustable feed rate, the apparatus comprising:
- at least two synchronously driven feed rollers each having a cylindrical mantle surface, the rollers being so positioned adjacent each other that their mantle surfaces form a nip between the two feed rollers for the fiber thread;
- one of the rollers being supported for being motor driven and the other roller being supported for being a co-rotating roller for co-rotating with the motor driven roller;
- the surface of at least one of the motor driven roller and the co-rotating roller having a peripheral slot in the surface, an O-ring of an elastic incompressible material being supported in the slot, the slot in the surface of the one roller and the O-ring therein being shaped so that the O-ring bears on the mantle surface of the other of the motor driven roller and co-rotating roller to transmit the rotary motion between the driven and co-rotating rollers by means of friction transmitted through the O-ring.
Dependencies are inferred from the claim text.