Cooperative Patent Classification

CPC Definition - Subclass D02H

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Last Updated Version: 2016.11
WARPING, BEAMING OR LEASING
Definition statement

This place covers:

Apparatuses and methods for warping, beaming and leasing of warp yarns in preparation of the weaving process.

Glossary of terms

In this place, the following terms or expressions are used with the meaning indicated:

Warping

comprises winding parts of the warp yarns, normally from bobbins, on a warping beam, whereby sequential parts are wound next to each other until the full weaving width is covered. The warping beam is then normally in a next step of warp preparation used for beaming

Beaming

comprises winding the full width of the warp yarns in a single winding operation on the weaving beam (i.e. the beam which is to be placed on the loom). The warp yarns can be wound from a creel or a warping beam.

Leasing

comprises inserting lease cords between the warp yarns to separate groups of warp yarns.

Fibre

a relatively-short, elongated member of natural or artificial material

Filament:

an endless or quasi-endless, elongated member of natural (e.g. silk) or artificial material

Yarn

a unitary assembly of fibres, usually produced by spinning

Thread:

an assembly of yarns or filaments, usually produced by twisting

Creels, i.e. apparatus for supplying a multiplicity of individual threads
Definition statement

This place covers:

Structures with yarn packages for supplying a multiplicity of individual threads in particular to warping machines or looms.

Illustrative example of subject matter classified in this group (EP-A1-0 732 433):

media0.jpg

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Methods and apparatus with yarn packages for supplying individual threads (i.e. creels in general)

Controlling warp tension if the warp is supplied to the weaving machine by a creel

Warping machines
Definition statement

This place covers:

Apparatuses and methods for winding warps normally from a creel on a beam (from where it is, as a next step, normally wound on the warp beam of the loom).

{Sectional warpers}
Definition statement

This place covers:

Sectional warpers which normally feature a large drum and feeding warp threads perpendicular to the drum axis from a bobbin creel.

Illustrative example of subject matter classified in this group (EP-A2-1 510 605):

media1.jpg

{Sample warpers}
Definition statement

This place covers:

Warpers for warping relatively short lengths of warp threads which are used for weaving a sample fabric. These warpers are normally sectional warpers with sideways winding from a bobbin creel.

Illustrative example of subject matter classified in this group (DE-A1-102006023496):

media2.jpg

Beaming machines
Definition statement

This place covers:

Apparatuses and methods for beaming whereby a full width of warp yarns is wound in a single winding operation on the weaving beam (i.e. the beam to be placed in the loom). The warp yarns can be unwound from a creel (i.e. direct beaming) or from a warping beam.

Combined warping and beaming machines
Definition statement

This place covers:

Machines wherein the functions of warping and beaming are united, e.g. by using sectional beaming to create a beam which can be directly used in a weaving machine.

References
Limiting references

This place does not cover:

Direct beaming wherein the whole width of warp yarns is beamed at once

Leasing
Definition statement

This place covers:

Apparatuses and methods for inserting lease cords between the warp yarns to separate groups of warp yarns.

Methods or apparatus not provided for in the preceding groups, e.g. for cleaning the warp
Definition statement

This place covers:

Methods or apparatus not provided for in the groups D02H 1/00 - D02H 9/00, e.g. for cleaning the warp.

Details of machines of the preceding groups
Definition statement

This place covers:

Details of machines of the groups D02H 1/00 - D02H 11/00.

Stop motions
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Applications of devices for metering predetermined lengths of running material

Warning or safety devices, e.g. stop-motions

Variable-speed driving mechanisms
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Adjusting or controlling tension in filamentary material in general

Reeds, combs, or other devices for determining the spacing of threads
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Reeds or beat-up combs in looms

Tensioning devices
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Adjusting or controlling tension in filamentary material in general