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IPC 7
 
B24-B24B00730
  B24B 9/00 - B24B 29/10  

SECTION B – PERFORMING OPERATIONS; TRANSPORTING


B 24GRINDING; POLISHING


B 24 BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING (grinding of gear teeth B23F, of screw threads B23G 1/36; by electro-erosion B23H; abrasive or related blasting B24C; tools for grinding, buffing or sharpening B24D; polishing compositions C09G 1/00; abrasives C09K 3/14; electrolytic etching or polishing C25F 3/00; grinding arrangements for use on assembled railway tracks E01B 31/17); DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS  [2]


Notes

(1)In this subclass, the following term is used with the meaning indicated:

 "polishing" means the smoothing of a surface, i.e. a surface improvement but no improvement of the dimensional accuracy as would occur in a "grinding" operation.  [4]

(2)Attention is drawn to Notes (1) and (2) following the title of subclass B23F.  [4]

(3)In groups B24B 1/00 to B24B 27/00, in connection with glass the terms "grinding" and "polishing" are treated as being equivalent.  [4]


Subclass Index

GRINDING OR POLISHING PROCESSES NOT PARTICULAR TO SPECIFIC MACHINES, DEVICES OR WORK 

B24B 1/00 

GRINDING; GENERAL FEATURES OF GRINDING, POLISHING, OR FINISHING 

Grinding of surfaces with simple shapes 

B24B 5/00, B24B 7/00, B24B 9/00, B24B 11/00 

Grinding of surfaces of special shape 

B24B 3/00, B24B 13/00 to B24B 19/00 

Grinding or polishing using abrasive belts 

B24B 21/00 

Portable machines 

B24B 23/00 

Other machines 

B24B 25/00, B24B 27/00 

Component parts 

B24B 41/00 to B24B 47/00 

Measuring, indicating, controlling; Safety 

B24B 49/00, B24B 51/00; B24B 55/00 

Dressing or conditioning of grinding tools; Feeding or applying grinding, polishing or lapping agents 

B24B 53/00; B24B 57/00 

POLISHING OR FINISHING 

Polishing, burnishing 

B24B 29/00, B24B 39/00 

by tumbling 

B24B 31/00 

Honing, superfinishing 

B24B 33/00, B24B 35/00 

Lapping 

B24B 37/00 



1/

00Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes (processes characterised by the use of special machines or devices, see the relevant places for those machines or devices) [4]

1/

04.subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency (polishing or abrading surfaces on work by means of tumbling apparatus B24B 31/00, involving oscillating or vibrating containers B24B 31/06; superfinishing surfaces on work, e.g. by means of abrading blocks reciprocating with high frequency, B24B 35/00)  [4]


3/

00Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools (non-abrasive sharpening devices for scythes, sickles, or the like A01D 3/00; sharpening devices designed as components of machines with cutters, see the relevant places for the machines, e.g. A01D 75/08, B26D 7/12; sharpening of saw teeth B23D 63/12; sharpening of files or rasps B23D 73/00; grinding of die-stocks or chasers B23G 1/36)

3/

02.of milling cutters

3/

04..of plain milling cutters

3/

06..of face or end milling cutters or cutter heads, e.g. of shank type

3/

08..of profile milling cutters, e.g. of disc type

3/

10..of routers or engraving needles

3/

12..of hobs

3/

14..of mortise chain cutters

3/

16.of broaches

3/

18.of taps or reamers

3/

20..Tapering or chamfering taps or reamers

3/

22..Relief cutting of taps or reamers

3/

24.of drills (by fluting the shank B24B 19/04)

3/

26..of the point of twist drills

3/

28...by swivelling the drill around an axis angularly to the drill axis

3/

30....and rotating the drill about its own axis

3/

32...for thinning the point

3/

33..of drills for stone

3/

34.of turning or planing tools or tool bits, e.g. gear cutters (B24B 3/36 takes precedence)

3/

36.of cutting blades (B24B 3/58 takes precedence)

3/

38..for planing wood, e.g. cutter blades

3/

40..Processes or apparatus specially adapted for sharpening curved edges

3/

42..helically bent, e.g. for lawn mowers

3/

44..of scythes or sickles  [2]

3/

46..of disc blades

3/

48..of razor blades or razors (by an abrasive block without mechanisms B24D)

3/

50...operated manually

3/

52..of shear blades or scissors

3/

54..of hand or table knives

3/

55.of knife bars for harvesting machines

3/

56.of slicing bands (B24B 3/58 takes precedence)

3/

58.of tools having scalloped cutting edges

3/

60.of tools not covered by the preceding subgroups


Grinding surfaces of particular forms


5/

00Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor (B24B 11/00 to B24B 21/00 take precedence; honing machines or devices using abrading blocks performing axial and rotary movements superimposed on one another B24B 33/00) [2]

5/

01.for combined grinding of surfaces of revolution and of adjacent plane surfaces on work  [4]

5/

02.involving centres or chucks for holding work

5/

04..for grinding cylindrical surfaces externally (grinding combined cylindrical and conical surfaces B24B 5/14)

5/

06..for grinding cylindrical surfaces internally (B24B 5/40 takes precedence)

5/

08...involving a vertical tool spindle

5/

10...involving a horizontal tool spindle

5/

12..for grinding cylindrical surfaces both externally and internally with several grinding wheels

5/

14..for grinding conical surfaces, e.g. of centres

5/

16..for grinding peculiarly profiled surfaces, e.g. bulged

5/

18.involving centreless means for supporting, guiding, floating or rotating work (centreless turning B23B 5/08; centreless grinding of threads B23G 1/42)  [2]

5/

20..involving grooved abrading blocks

5/

22..for grinding cylindrical surfaces, e.g. on bolts

5/

24..for grinding conical surfaces

5/

26..for grinding peculiarly profiled surfaces, e.g. bulged

5/

28..for grinding outer surfaces concentrically to bores, involving additional centring means

5/

30..Regulating-wheels; Equipment therefor

5/

307..Means for supporting work  [3]

5/

313.involving work-supporting means carrying several workpieces to be operated on in succession  [3]

5/

32..the work-supporting means being indexable  [3]

5/

35.Accessories  [3]

5/

36.Single-purpose machines or devices

5/

37..for grinding rolls, e.g. barrel-shaped rolls  [4]

5/

38..for externally grinding travelling elongated stock, e.g. wire

5/

40..for grinding tubes internally

5/

42..for grinding crankshafts or crankpins

5/

44..for grinding rims of vehicle wheels, e.g. for bicycles

5/

46..for grinding railway car wheels

5/

48..for grinding walls of very fine holes, e.g. in drawing-dies

5/

50.characterised by a special design with respect to properties of the material of non-metallic articles to be ground, e.g. strings (cutting profiles into the treads of tyres B29D 30/68)


7/

00Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor (B24B 21/00 takes precedence; honing of plane surfaces on work B24B 33/055) [4]

7/

02.involving a reciprocatingly-moved work-table (involving a reciprocatingly-moved grinding wheel in combination with a stationary work-table B24B 7/07)  [4]

7/

04.involving a rotary work-table

7/

06.involving conveyer belts, a sequence of travelling work-tables or the like

7/

07.involving a stationary work-table  [4]

7/

08..having an abrasive wheel built in

7/

10.Single-purpose machines or devices (grinding tools or machines specially adapted for use on assembled railway track E01B 31/17)

7/

12..for grinding travelling elongated stock, e.g. strip-shaped work  [4]

7/

13...grinding while stock moves from coil to coil  [4]

7/

14..for grinding slideways (portable grinding machines designed for fastening on workpieces B24B 23/08)  [4]

7/

16..for grinding end faces, e.g. of gauges, rollers, nuts, piston rings (for combined grinding of surfaces of revolution and of adjacent plane surfaces on work B24B 5/01; for grinding edges or bevels on work B24B 9/00)  [4]

7/

17...for simultaneously grinding opposite and parallel end faces, e.g. double disc grinders  [4]

7/

18..for grinding floorings, walls, ceilings or the like (machines or devices for cleaning floorings A47L 11/00, A47L 13/00)

7/

19..for grinding plane decorative patterns  [4]

7/

20.characterised by a special design with respect to properties of the material of non-metallic articles to be ground

7/

22..for grinding inorganic material, e.g. stone, ceramics, porcelain

7/

24...for grinding or polishing glass

7/

26....for simultaneously grinding or polishing opposite faces of continuously travelling sheets or bands of glass

7/

28..for grinding wood

7/

30..for grinding plastics  [4]

   B24B 9/00 - B24B 29/10  
 

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