IPC 7 English version B24D !A-B24D 18/00

B24D-B24D01800

SECTION B – PERFORMING OPERATIONS; TRANSPORTING

B 24

GRINDING; POLISHING

B 24 D

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)

Notes

(1)

This subclass covers grinding tools for working on any material.

(2)

Tools for grinding, buffing or sharpening, specially designed for a particular purpose, which purpose is provided for in a single other place, are classified in that place, e.g. B23F 21/02. [4]

Subclass Index

PHYSICAL FEATURES OR CONSTITUENTS OF ABRASIVE BODIES OR SHEETS

B24D 3/00

ABRASIVE WHEELS

B24D 5/00, B24D 7/00, B24D 9/00, B24D 13/00

FLEXIBLE ABRASIVE MATERIALS

HAND TOOLS

OTHER TOOLS

MANUFACTURE

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)

the constituent being used as bonding agent

and being essentially inorganic

metallic

for close-grained structure, e.g. using metal with low melting point

for porous or cellular structure, e.g. for use with diamonds as abrasives

water-setting, e.g. concrete

ceramic, i.e. vitrified bondings

for close grained structure, i.e. of high density

for porous or cellular structure

and being essentially organic

Rubbers

for close-grained structure

for porous or cellular structure

Resins

for close-grained structure

for porous or cellular structure

characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties

Bonded abrasive wheels

Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor

Wheels in one piece

with reinforcing means

with inserted abrasive blocks, e.g. segmental (zonally graded B24D 5/14)

with reinforcing means

with cooling provisions, e.g. with radial slots

Cut-off wheels

Zonally-graded wheels; Composite wheels comprising different abrasives

Bushings; Mountings

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

Wheels in one piece

with reinforcing means

with inserted abrasive blocks, e.g. segmental (zonally-graded B24D 7/14)

with reinforcing means

with cooling provisions

with apertures for inspecting the surface to be abraded

Zonally-graded wheels; Composite wheels comprising different abrasives

Bushings; Mountings

Wheels of special form (if specially designed for a particular purpose provided for in a single other class, that class takes precedence)

Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper (wheels or drums as machine elements F16)

Expansible drums for carrying flexible material in tubular form, e.g. expanded by centrifugal force

Rigid drums for carrying flexible material

able to be stripped-off from a built-in delivery spool

Circular back-plates for carrying flexible material

with suction means for securing the material

11/

Constructional features of flexible abrasive materials; Special features in the manufacture of such materials

11/

Backings, e.g. foils, webs, mesh fabrics

11/

Zonally-graded surfaces

11/

Connecting the ends of materials, e.g. for making abrasive belts

11/

Equipment for after-treatment of the coated backings, e.g. for flexing the coating

13/

Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor

13/

acting by their periphery

13/

comprising a plurality of flaps or strips arranged around the axis

13/

the flaps or strips being individually attached

13/

comprising annular or circular sheets packed side by side

13/

comprising assemblies of brushes

13/

comprising assemblies of felted or spongy material, e.g. felt, steel wool, foamed latex

13/

acting by the front face

13/

comprising pleated flaps or strips

13/

with cooling provisions

13/

Mountings for the wheels

15/

Hand tools or other devices for non-rotary grinding, polishing, or stropping

15/

rigid; with rigidly-supported operative surface

15/

resilient; with resiliently-mounted operative surface

15/

specially designed for sharpening cutting edges

15/

of knives; of razors

15/

of safety-razor blades (devices with mechanically-operated parts B24B 3/50)

17/

Abrasive or polishing tools not covered by any preceding group in this subclass

18/

Manufacture of grinding tools, e.g. wheels, not otherwise provided for [4]