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WARPING, BEAMING OR LEASING
Definition statement
This subclass/group covers:

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

Glossary of terms
In this subclass/group, 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 subclass/group 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):

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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 subclass/group 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 subclass/group 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):

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{ Sample warpers}
Definition statement
This subclass/group 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):

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Beaming machines
Definition statement
This subclass/group 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 subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Direct beaming wherein the whole width of warp yarns is beamed at once
Leasing
Definition statement
This subclass/group 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 subclass/group 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 subclass/group covers:

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

Stop motions
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
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
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
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
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Last Modified: 10/11/2013