Textiles: weaving – Special-type looms – Pushed shed pocket
Reexamination Certificate
1999-08-02
2001-01-30
Falik, Andy (Department: 3741)
Textiles: weaving
Special-type looms
Pushed shed pocket
C139S450000
Reexamination Certificate
active
06179011
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to of weft threads in accordance with the preamble of claim
1
and to a series shed weaving machine with an apparatus.
2. Description of the Prior Art
An apparatus is described in EP-A-0 433 216 for the distribution of the weft threads from a thread supply device to a plurality of insertion passages of a weaving rotor of a series shed weaving machine which contains a stationary part, and a part which rotates with the weaving rotor which have a common separation and sealing surface in a rotationally symmetrical surface and via which the transfer of the weft threads takes place. In the stationary part passages are formed in a known arrangement and nozzles are provided for each passage in order to draw off the weft threads from a device which supplies the weft threads and to introduce them into the respective passage. In the part which rotates with the weaving rotor, acceptor passages are formed in a known arrangement and shoot-in tubes are provided in order to shoot the weft threads which are supplied by the nozzles into the weft passages which are formed at the weaving rotor.
The disadvantages of this apparatus are essentially to be seen wherein the gap between the stationary part and the part which rotates with the weaving rotor is made very narrow in order to ensure the forwarding of the weft threads to the weaving rotor, in that the nozzle which is associated with each passage must drive the start of the weft thread through the passage up to the relay nozzles in the weaving rotor; and wherein as a result of the constitution of the yarn, thread parts, e.g. fibrils can penetrate into the gap between the stationary part and the part which rotates with the weaving rotor. A substantial restriction of the types of yarn which can be woven on the weaving machine results from this.
SUMMARY OF THE INVENTION
The object of the invention is to improve an apparatus of this kind.
Because the weft threads are prepared in a stationary unit with supply nozzles and are shot into the weft passages by means of a unit with injector nozzles which rotates with the weaving rotor, there results the advantage that different yarn sorts, in particular also filament yarns, can be shot into the weft passage in a disturbance-free manner.
The weaving machine has the advantage that as a result of a discontinuous supply of the weft threads there exists the possibility of selecting the available weft yarn freely and in accordance with a predetermined program for the weft insertion.
REFERENCES:
patent: 4592393 (1986-06-01), Steiner
patent: 5146955 (1992-09-01), Steiner et al.
patent: 5406985 (1995-04-01), Christe
patent: 5439037 (1995-08-01), Christe
patent: 5632308 (1997-05-01), Bucher et al.
patent: 5937913 (1999-08-01), Christe
patent: 0143860A1 (1985-06-01), None
patent: 0433216A1 (1991-06-01), None
patent: 0685584A1 (1995-12-01), None
Falik Andy
Sulzer Rueti AG
Townsend and Townsend / and Crew LLP
LandOfFree
Apparatus for the insertion of weft threads for a series... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for the insertion of weft threads for a series..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for the insertion of weft threads for a series... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2477785