| D | SK | SECTION D — TEXTILES; PAPER |
| D01 | USK | TEXTILES OR FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR |
| D01 | KL | NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING (metal threads B21; fibres or filaments of softened glass, minerals, or slag C03B 37/00; yarns D02) |
| D01B | UKL | MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OR FILAMENTS, e.g. FOR SPINNING (crude extraction of asbestos fibres from ores B03B; apparatus for retting D01C) |
| D01B 1/00 | HGR | Mechanical separation of fibres from plant material, e.g. seeds, leaves, stalks |
| D01B 1/02 | UGR1 | | . | Separating vegetable fibres from seeds, e.g. cotton |
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| D01B 1/04 | UGR2 | |
| D01B 1/06 | UGR3 | | . . . | Roller gins, e.g. Macarthy type |
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| D01B 1/08 | UGR3 | |
| D01B 1/10 | UGR1 | | . | Separating vegetable fibres from stalks or leaves |
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| D01B 1/12 | UGR2 | |
| D01B 1/14 | UGR2 | | . . | Breaking or scutching, e.g. of flax; Decorticating |
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| D01B 1/16 | UGR3 | | . . . | with devices dependent on a bending action to break or loosen fibre-bearing materials (crushing rollers D01B 1/22) |
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| D01B 1/18 | UGR3 | | . . . | with stamping devices |
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| D01B 1/20 | UGR3 | | . . . | with scraping devices |
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| D01B 1/22 | UGR3 | | . . . | with crushing or breaking rollers or plates |
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| D01B 1/24 | UGR3 | | . . . | with toothed or other pointed devices |
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| D01B 1/26 | UGR3 | | . . . | with beaters rotating about an axis parallel to the fibre bundle |
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| D01B 1/28 | UGR3 | | . . . | with beaters rotating about an axis perpendicular to the fibre bundle |
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| D01B 1/30 | UGR3 | |
| D01B 1/32 | UGR4 | | . . . . | Feeding arrangements |
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| D01B 1/34 | UGR4 | | . . . . | Devices holding fibres or fibre-bearing materials during treatment |
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| D01B 1/36 | UGR5 | | . . . . . | Conveying devices, e.g. moving bands or ropes |
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| D01B 1/38 | UGR4 | | . . . . | Delivery or discharge arrangements |
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| D01B 1/40 | UGR4 | | . . . . | Arrangements for disposing of non-fibrous materials |
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| D01B 1/42 | UGR5 | | . . . . . | employing liquids |
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| D01B 1/44 | UGR4 | | . . . . | Framework; Casings; Coverings; Grids |
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| D01B 1/46 | UGR4 | | . . . . | Driving arrangements |
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| D01B 1/48 | UGR2 | |
| D01B 1/50 | UGR1 | | . | Obtaining fibres from other specified vegetable matter, e.g. peat, Spanish moss |
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| D01B 3/00 | HGR | Mechanical removal of impurities from animal fibres (carbonising rags to recover animal fibres D01C 5/00) [2] |
| D01B 3/02 | UGR1 | | . | De-burring machines or apparatus (de-burring arrangements forming part of, or intimately associated with, carding or drafting machines, e.g. burr-crushing rollers, D01G) |
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| D01B 3/04 | UGR1 | | . | Machines or apparatus for washing or scouring loose wool fibres |
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| D01B 3/06 | UGR2 | | . . | with circular movement of either wool or liquid |
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| D01B 3/08 | UGR2 | | . . | with longitudinal movement of either wool or liquid |
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| D01B 3/10 | UGR2 | | . . | Details of machines or apparatus |
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| D01B 5/00 | HGR | Hackling or heckling machines (hand heckling tools D01G 33/00) |
| D01B 5/02 | UGR1 | |
| D01B 5/04 | UGR2 | | . . | Apparatus for feeding, holding, or conveying materials to or in machines |
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| D01B 5/06 | UGR2 | | . . | Construction, mounting, or operating features of heckling devices |
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| D01B 5/08 | UGR2 | | . . | Arrangements for removing, or disposing of, tow or waste |
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| D01B 5/10 | UGR2 | | . . | Touch pins or other ending devices |
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| D01B 5/12 | UGR2 | | . . | Framework; Casings; Coverings |
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| D01B 5/14 | UGR2 | |
| D01B 5/16 | UGR2 | | . . | Arrangements for confining or removing dust or the like |
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| D01B 7/00 | HGR | Obtaining silk fibres or filaments |
| D01B 7/02 | UGR1 | | . | Cleaning or classifying silk cocoons |
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| D01B 7/04 | UGR1 | |
| D01B 7/06 | UGR1 | | . | Obtaining silk from cocoons or portions thereof not suitable for reeling (de-gumming silk D01C 3/02) |
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| D01B 9/00 | HGR | Other mechanical treatment of natural fibrous or filamentary material to obtain fibres or filaments |