# US 4,395,872 A · Asymmetrical false-twist texturing machine

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- Number: US 4,395,872 A
- Document ID: US4395872A
- Status: Granted
- Kind: A
- Application number: 06/263,029
- Filed: 1981-05-12
- Granted: 1983-08-02
- Earliest claimed: 1980-05-14
- Assignees: Ernst Michalke GmbH & Co.
- Inventors: Walter Riedl
- Web page: https://patentgrep.com/patent/US4395872A

## CPC

- D02G 1/0266: {false-twisting machines}
- D02G: CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS

## Abstract

The invention relates to a device for false-twist texturing, if appropriate with simultaneous drawing of multi-filament threads, said device consisting of a plurality of identical sections located next to one another, in which device the delivery mechanisms and heaters required for each working position are arranged in only one series in each case, the texturing machine has only one operating gangway and one creel installation, and the thread runs of the working positions of a section differ from one another in their angles and/or their length due to a slight oblique pull. These measures make it possible to use common texturing heaters and set heaters for the working positions of a section. The device is distinguished by a low energy requirement, ease of attendance and good accessibility of all the machine parts in case of repairs.

## Claims

### Claim 1

A texturing machine for false-twist texturing including at least one treatment section having between 10 to 30 thread working positions, said treatment section comprising thread delivery means, a common texturing heater, means for guiding threads from said delivery means along converging paths to said texturing heater and for guiding the threads through the heater in a compact non-planar bundle, false twisting means downstream of the texturing heater in the direction of movement of said threads, means for guiding threads from said texturing heater to said false twisting means along diverging paths, said false twisting means comprising a plurality of false twist inducers separately associated with each of the threads and arranged in two banks alternated with each other in two spatially offset planes; a set heater for said threads located in series with said false twisting means and downstream thereof in the direction of travel of said threads, creel means for taking up threads passing from said set heater, and a single operating gangway between said creel means and delivery means, whereby the threads heated in each of said treatment sections pass along paths of travel which differ from one another in length.

### Claim 2 (depends on 1)

A texturing machine as defined in claim 1 wherein the texturing heater and set heater receive and heat all threads moving through the treatment section.

### Claim 3 (depends on 2)

A texturing machine as defined in claim 2 including a plurality of identical treatment sections located next to one another, said single gangway extending through all sections of the machine.

### Claim 4 (depends on 1)

A texturing machine as defined in claim 1 wherein said means for guiding the threads comprise a plurality of separate closed tubes individually associated with each separate thread for guiding the same along its path of travel to and from said heater.

### Claim 5 (depends on 4)

A texturing machine as defined in claim 4 wherein said tubes pass through said common texturing heater along generally parallel paths of travel in a compact non-planar bundle.

### Claim 6 (depends on 1)

A texturing machine as defined in claim 1 including a cooling zone, said guide tubes individually guiding the threads through the cooling zone.

### Claim 7 (depends on 6)

The texturing machine as claimed in claim 6, wherein the twist inducers are driven by frequency-controlled individual motors.

### Claim 8 (depends on 7)

A texturing machine as defined in claim 7 wherein said delivery means, false twisting means and creel means each include drive shafts and said machine includes frequency controlled individual motors for driving said shafts.