(0)B24B:0/6:

IPC6

SECTION B - PERFORMING OPERATIONS; TRANSPORTING

MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING;...

B24B

1/7

B24B001/00 - B24B005/00

B 24

GRINDING; POLISHING

Note

In this class, the following term is used with the meaning indicated:

-	"grinding" is used in its most general sense to mean machining and covers, in particular, "corrective" operations.

B 24 B

MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING (grinding of gear teeth B 23 F, of screw threads B 23 G 1/36; by electro-erosion B 23 H; abrasive or related blasting B 24 C; tools for grinding, buffing or sharpening B 24 D; polishing compositions C 09 G 1/00; abrasives C 09 K 3/14; electrolytic etching or polishing C 25 F 3/00; grinding arrangements for use on assembled railway tracks E 01 B 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 B 23 F. [4]

(3)	In groups B 24 B 1/00 to B 24 B 27/00, in connection with glass the terms "grinding" and "polishing" are treated as being equivalent. [4]

Processes 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]

•

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 B 24 B 31/00, involving oscillating or vibrating containers B 24 B 31/06; superfinishing surfaces on work, e.g. by means of abrading blocks reciprocating with high frequency, B 24 B 35/00) [4]

Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools (non-abrasive sharpening devices for scythes, sickles, or the like A 01 D 3/00; sharpening devices designed as components of machines with cutters, see the relevant places for the machines, e.g. A 01 D 75/08, B 26 D 7/12; sharpening of saw teeth B 23 D 63/12; sharpening of files or rasps B 23 D 73/00; grinding of die-stocks or chasers B 23 G 1/36)

•

of milling cutters

•

of plain milling cutters

•

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

•

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

•

of routers or engraving needles

•

of hobs

•

of mortise chain cutters

Tapering or chamfering taps or reamers

•

Relief cutting of taps or reamers

•

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

•

of the point of twist drills

•

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

•

and rotating the drill about its own axis

•

for thinning the point

•

of drills for stone

•

of turning or planing tools or tool bits, e.g. gear cutters (B 24 B 3/36 takes precedence)

•

of cutting blades (B 24 B 3/58 takes precedence)

•

for planing wood, e.g. cutter blades

•

Processes or apparatus specially adapted for sharpening curved edges

•

helically bent, e.g. for lawn mowers

•

of scythes or sickles [2]

•

of disc blades

•

of razor blades or razors (by an abrasive block without mechanisms B 24 D)

•

operated manually

•

of shear blades or scissors

•

of hand or table knives

•

of knife bars for harvesting machines

•

of slicing bands (B 24 B 3/58 takes precedence)

•

of tools having scalloped cutting edges

•

of tools not covered by the preceding subgroups

Grinding surfaces of particular forms