| B | SK | PERFORMING OPERATIONS; TRANSPORTING |
| B24 | KL | GRINDING; POLISHING |
| B24D | UKL | TOOLS FOR GRINDING, BUFFING, OR SHARPENING (tools for grinding or polishing optical surfaces on lenses or surfaces of similar shape B24B 13/01; grinding heads B24B 41/00; manufacture of abrasive or friction articles or shaped materials containing macromolecular substances C08J 5/14; polishing compositions C09G 1/00; abrasives C09K 3/14) |
| B24D 3/00 | HGR | Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents (composition of friction linings F16D 69/02) |
| B24D 3/02 | UGR1 | | . | the constituent being used as bonding agent |
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| B24D 3/04 | UGR2 | | . . | and being essentially inorganic |
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| B24D 3/06 | UGR3 | |
| B24D 3/08 | UGR4 | | . . . . | for close-grained structure, e.g. using metal with low melting point |
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| B24D 3/10 | UGR4 | | . . . . | for porous or cellular structure, e.g. for use with diamonds as abrasives |
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| B24D 3/12 | UGR3 | | . . . | water-setting, e.g. concrete |
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| B24D 3/14 | UGR3 | | . . . | ceramic, i.e. vitrified bondings |
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| B24D 3/16 | UGR4 | | . . . . | for close grained structure, i.e. of high density |
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| B24D 3/18 | UGR4 | | . . . . | for porous or cellular structure |
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| B24D 3/20 | UGR2 | | . . | and being essentially organic |
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| B24D 3/22 | UGR3 | |
| B24D 3/24 | UGR4 | | . . . . | for close-grained structure |
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| B24D 3/26 | UGR4 | | . . . . | for porous or cellular structure |
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| B24D 3/28 | UGR3 | |
| B24D 3/30 | UGR4 | | . . . . | for close-grained structure |
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| B24D 3/32 | UGR4 | | . . . . | for porous or cellular structure |
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| B24D 3/34 | UGR1 | | . | characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties |
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| B24D 5/00 | HGR | Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor |
| B24D 5/02 | UGR1 | |
| B24D 5/04 | UGR2 | | . . | with reinforcing means |
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| B24D 5/06 | UGR1 | | . | with inserted abrasive blocks, e.g. segmental (zonally graded B24D 5/14) |
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| B24D 5/08 | UGR2 | | . . | with reinforcing means |
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| B24D 5/10 | UGR1 | | . | with cooling provisions, e.g. with radial slots |
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| B24D 5/12 | UGR1 | |
| B24D 5/14 | UGR1 | | . | Zonally-graded wheels; Composite wheels comprising different abrasives |
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| B24D 5/16 | UGR1 | |
| B24D 7/00 | HGR | Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor |
| B24D 7/02 | UGR1 | |
| B24D 7/04 | UGR2 | | . . | with reinforcing means |
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| B24D 7/06 | UGR1 | | . | with inserted abrasive blocks, e.g. segmental (zonally-graded B24D 7/14) |
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| B24D 7/08 | UGR2 | | . . | with reinforcing means |
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| B24D 7/10 | UGR1 | |
| B24D 7/12 | UGR1 | | . | with apertures for inspecting the surface to be abraded |
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| B24D 7/14 | UGR1 | | . | Zonally-graded wheels; Composite wheels comprising different abrasives |
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| B24D 7/16 | UGR1 | |
| B24D 7/18 | UGR1 | | . | Wheels of special form (if specially designed for a particular purpose provided for in a single other class, that class takes precedence) |
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| B24D 9/00 | ZWE |
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| B24D 9/00 | HGR | Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper (wheels or drums as machine elements F16) |
| B24D 9/02 | UGR1 | | . | Expansible drums for carrying flexible material in tubular form, e.g. expanded by centrifugal force |
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| B24D 9/04 | UGR1 | | . | Rigid drums for carrying flexible material |
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| B24D 9/06 | UGR2 | | . . | able to be stripped-off from a built-in delivery spool |
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| B24D 9/08 | UGR1 | | . | Circular back-plates for carrying flexible material |
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| B24D 9/10 | UGR2 | | . . | with suction means for securing the material |
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| B24D 11/00 | HGR | Constructional features of flexible abrasive materials; Special features in the manufacture of such materials |
| B24D 11/02 | UGR1 | | . | Backings, e.g. foils, webs, mesh fabrics |
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| B24D 11/04 | UGR1 | |
| B24D 11/06 | UGR1 | | . | Connecting the ends of materials, e.g. for making abrasive belts |
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| B24D 11/08 | UGR1 | | . | Equipment for after-treatment of the coated backings, e.g. for flexing the coating |
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| B24D 13/00 | HGR | Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor |
| B24D 13/02 | UGR1 | | . | acting by their periphery |
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| B24D 13/04 | UGR2 | | . . | comprising a plurality of flaps or strips arranged around the axis |
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| B24D 13/06 | UGR2 | | . . | the flaps or strips being individually attached |
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| B24D 13/08 | UGR2 | | . . | comprising annular or circular sheets packed side by side |
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| B24D 13/10 | UGR2 | | . . | comprising assemblies of brushes |
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| B24D 13/12 | UGR2 | | . . | comprising assemblies of felted or spongy material, e.g. felt, steel wool, foamed latex |
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| B24D 13/14 | UGR1 | | . | acting by the front face |
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| B24D 13/16 | UGR2 | | . . | comprising pleated flaps or strips |
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| B24D 13/18 | UGR1 | |
| B24D 13/20 | UGR1 | | . | Mountings for the wheels |
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| B24D 15/00 | HGR | Hand tools or other devices for non-rotary grinding, polishing, or stropping |
| B24D 15/02 | UGR1 | | . | rigid; with rigidly-supported operative surface |
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| B24D 15/04 | UGR1 | | . | resilient; with resiliently-mounted operative surface |
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| B24D 15/06 | UGR1 | | . | specially designed for sharpening cutting edges |
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| B24D 15/08 | UGR2 | |
| B24D 15/10 | UGR2 | | . . | of safety-razor blades (devices with mechanically-operated parts B24B 3/50) |
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| B24D 17/00 | HGR | Abrasive or polishing tools not covered by any preceding group in this subclass |
| B24D 18/00 | HGR | Manufacture of grinding tools, e.g. wheels, not otherwise provided for [4] |