IPC 6 English version B24B !A-B24B 7/30

B24-B24B00730

SECTION B– PERFORMING OPERATIONS; TRANSPORTING

B 24

GRINDING; POLISHING

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

of broaches

of taps or reamers

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

Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor (B 24 B 11/00 to B 24 B 21/00 take precedence; honing machines or devices using abrading blocks performing axial and rotary movements superimposed on one another B 24 B 33/00) [2]

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

involving centres or chucks for holding work

for grinding cylindrical surfaces externally (grinding combined cylindrical and conical surfaces B 24 B 5/14)

for grinding cylindrical surfaces internally (B 24 B 5/40 takes precedence)

involving a vertical tool spindle

involving a horizontal tool spindle

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

for grinding conical surfaces, e.g. of centres

for grinding peculiarly profiled surfaces, e.g. bulged

involving centreless means for supporting, guiding, floating or rotating work (centreless turning B 23 B 5/08; centreless grinding of threads B 23 G 1/42) [2]

involving grooved abrading blocks

for grinding cylindrical surfaces, e.g. on bolts

for grinding conical surfaces

for grinding peculiarly profiled surfaces, e.g. bulged

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

Regulating-wheels; Equipment therefor

307

Means for supporting work [3]

313

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

the work-supporting means being indexable [3]

Accessories [3]

Single-purpose machines or devices

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

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

for grinding tubes internally

for grinding crankshafts or crankpins

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

for grinding railway car wheels

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

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 B 29 D 30/68)

Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor (B 24 B 21/00 takes precedence; honing of plane surfaces on work B 24 B 33/055) [4]

involving a reciprocatingly-moved work-table (involving a reciprocatingly-moved grinding wheel in combination with a stationary work-table B 24 B 7/07) [4]

involving a rotary work-table

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

involving a stationary work-table [4]

having an abrasive wheel built in

Single-purpose machines or devices (grinding tools or machines specially adapted for use on assembled railway track E 01 B 31/17)

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

grinding while stock moves from coil to coil [4]

for grinding slideways (portable grinding machines designed for fastening on workpieces B 24 B 23/08) [4]

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 B 24 B 5/01; for grinding edges or bevels on work B 24 B 9/00) [4]

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

for grinding floorings, walls, ceilings or the like (machines or devices for cleaning floorings A 47 L 11/00, A 47 L 13/00)

for grinding plane decorative patterns [4]

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

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

for grinding or polishing glass

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

for grinding wood

for grinding plastics [4]

B24B 9/00 - B24B 29/10