|  | B |
SECTION B — PERFORMING OPERATIONS; TRANSPORTING

SHAPING

|  | B24 |
GRINDING; POLISHING

|  | B24 |
Note(s) 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.

|  | B24B |
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING (grinding of gear teeth Fulltext... Hierarchy... Expanded...B23F, of screw threads Fulltext... Hierarchy... Expanded...B23G 1/36; by electro-erosion Fulltext... Hierarchy... Expanded...B23H; abrasive or related blasting Fulltext... Hierarchy... Expanded...B24C; tools for grinding, buffing or sharpening Fulltext... Hierarchy... Expanded...B24D; polishing compositions Fulltext... Hierarchy... Expanded...C09G 1/00; abrasives Fulltext... Hierarchy... Expanded...C09K 3/14; electrolytic etching or polishing Fulltext... Hierarchy... Expanded...C25F 3/00; grinding arrangements for use on assembled railway tracks Fulltext... Hierarchy... Expanded...E01B 31/17); DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS [2]

|  | B24B |
Note(s) 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] Attention is drawn to Notes (1) and (2) following the title of subclass Fulltext... Hierarchy... Expanded...B23F. [4] In groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...B24B 1/00-B24B 27/00, in connection with glass the terms "grinding" and "polishing" are treated as being equivalent. [4]

|  | B24B |
Subclass index
GRINDING OR POLISHING PROCESSES NOT PARTICULAR TO SPECIFIC MACHINES, DEVICES OR WORK | 1/00
GRINDING; GENERAL FEATURES OF GRINDING, POLISHING, OR FINISHING |
Grinding of surfaces with simple shapes | 5/00, 7/00, 9/00, 11/00
Grinding of surfaces of special shape | 3/00, 13/00 - 19/00
Grinding or polishing using abrasive belts | 21/00
Portable machines | 23/00
Other machines | 25/00, 27/00
Component parts | 41/00 - 47/00
Measuring, indicating, controlling; Safety | 49/00, 51/00; 55/00
Dressing or conditioning of grinding tools; Feeding or applying grinding, polishing or lapping agents | 53/00; 57/00
POLISHING OR FINISHING |
Polishing, burnishing | 29/00, 39/00
by tumbling | 31/00
Honing, superfinishing | 33/00, 35/00
Lapping | 37/00

|  | B24B 1/00 |
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]

|  | B24B 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 Fulltext... Hierarchy... Expanded...B24B 31/00, involving oscillating or vibrating containers Fulltext... Hierarchy... Expanded...B24B 31/06; superfinishing surfaces on work, e.g. by means of abrading blocks reciprocating with high frequency, Fulltext... Hierarchy... Expanded...B24B 35/00) [4]

|  | B24B 3/00 |
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 Fulltext... Hierarchy... Expanded...A01D 3/00; sharpening devices designed as components of machines with cutters, see the relevant places for the machines, e.g. Fulltext... Hierarchy... Expanded...A01D 75/08, Fulltext... Hierarchy... Expanded...B26D 7/12; sharpening of saw teeth Fulltext... Hierarchy... Expanded...B23D 63/12; sharpening of files or rasps Fulltext... Hierarchy... Expanded...B23D 73/00; grinding of die-stocks or chasers Fulltext... Hierarchy... Expanded...B23G 1/36)

|  | B24B 3/02 |
· | of milling cutters

|  | B24B 3/04 |
· · | of plain milling cutters

|  | B24B 3/06 |
· · | of face or end milling cutters or cutter heads, e.g. of shank type

|  | B24B 3/08 |
· · | of profile milling cutters, e.g. of disc type

|  | B24B 3/10 |
· · | of routers or engraving needles

|  | B24B 3/12 |
· · | of hobs

|  | B24B 3/14 |
· · | of mortise chain cutters

|  | B24B 3/16 |
· | of broaches

|  | B24B 3/18 |
· | of taps or reamers

|  | B24B 3/20 |
· · | Tapering or chamfering taps or reamers

|  | B24B 3/22 |
· · | Relief cutting of taps or reamers

|  | B24B 3/24 |
· | of drills (by fluting the shank Fulltext... Hierarchy... Expanded...B24B 19/04)

|  | B24B 3/26 |
· · | of the point of twist drills

|  | B24B 3/28 |
· · · | by swivelling the drill around an axis angularly to the drill axis

|  | B24B 3/30 |
· · · · | and rotating the drill about its own axis

|  | B24B 3/32 |
· · · | for thinning the point

|  | B24B 3/33 |
· · | of drills for stone

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

|  | B24B 3/36 |
· | of cutting blades (Fulltext... Hierarchy... Expanded...B24B 3/58 takes precedence)

|  | B24B 3/38 |
· · | for planing wood, e.g. cutter blades

|  | B24B 3/40 |
· · | Processes or apparatus specially adapted for sharpening curved edges

|  | B24B 3/42 |
· · | helically bent, e.g. for lawn mowers

|  | B24B 3/44 |
· · | of scythes or sickles [2]

|  | B24B 3/46 |
· · | of disc blades

|  | B24B 3/48 |
· · | of razor blades or razors (by an abrasive block without mechanisms Fulltext... Hierarchy... Expanded...B24D)

|  | B24B 3/50 |
· · · | operated manually

|  | B24B 3/52 |
· · | of shear blades or scissors

|  | B24B 3/54 |
· · | of hand or table knives

|  | B24B 3/55 |
· | of knife bars for harvesting machines

|  | B24B 3/56 |
· | of slicing bands (Fulltext... Hierarchy... Expanded...B24B 3/58 takes precedence)

|  | B24B 3/58 |
· | of tools having scalloped cutting edges

|  | B24B 3/60 |
· | of tools not covered by the preceding subgroups

|  | B24B 5/00 - B24B 15/00 |
Grinding surfaces of particular forms

|  | B24B 5/00 |
Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor (Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...B24B 11/00-B24B 21/00 take precedence; honing machines or devices using abrading blocks performing axial and rotary movements superimposed on one another Fulltext... Hierarchy... Expanded...B24B 33/00) [2]

|  | B24B 5/01 |
· | for combined grinding of surfaces of revolution and of adjacent plane surfaces on work [4]

|  | B24B 5/02 |
· | involving centres or chucks for holding work

|  | B24B 5/04 |
· · | for grinding cylindrical surfaces externally (grinding combined cylindrical and conical surfaces Fulltext... Hierarchy... Expanded...B24B 5/14)

|  | B24B 5/06 |
· · | for grinding cylindrical surfaces internally (Fulltext... Hierarchy... Expanded...B24B 5/40 takes precedence)

|  | B24B 5/08 |
· · · | involving a vertical tool spindle

|  | B24B 5/10 |
· · · | involving a horizontal tool spindle

|  | B24B 5/12 |
· · | for grinding cylindrical surfaces both externally and internally with several grinding wheels

|  | B24B 5/14 |
· · | for grinding conical surfaces, e.g. of centres

|  | B24B 5/16 |
· · | for grinding peculiarly profiled surfaces, e.g. bulged

|  | B24B 5/18 |
· | involving centreless means for supporting, guiding, floating or rotating work (centreless turning Fulltext... Hierarchy... Expanded...B23B 5/08; centreless grinding of threads Fulltext... Hierarchy... Expanded...B23G 1/42) [2]

|  | B24B 5/20 |
· · | involving grooved abrading blocks

|  | B24B 5/22 |
· · | for grinding cylindrical surfaces, e.g. on bolts

|  | B24B 5/24 |
· · | for grinding conical surfaces

|  | B24B 5/26 |
· · | for grinding peculiarly profiled surfaces, e.g. bulged

|  | B24B 5/28 |
· · | for grinding outer surfaces concentrically to bores, involving additional centring means

|  | B24B 5/30 |
· · | Regulating-wheels; Equipment therefor

|  | B24B 5/307 |
· · | Means for supporting work [3]

|  | B24B 5/313 |
· | involving work-supporting means carrying several workpieces to be operated on in succession [3]

|  | B24B 5/32 |
· · | the work-supporting means being indexable [3]

|  | B24B 5/35 |
· | Accessories [3]

|  | B24B 5/36 |
· | Single-purpose machines or devices

|  | B24B 5/37 |
· · | for grinding rolls, e.g. barrel-shaped rolls [4]

|  | B24B 5/38 |
· · | for externally grinding travelling elongated stock, e.g. wire

|  | B24B 5/40 |
· · | for grinding tubes internally

|  | B24B 5/42 |
· · | for grinding crankshafts or crankpins

|  | B24B 5/44 |
· · | for grinding rims of vehicle wheels, e.g. for bicycles

|  | B24B 5/46 |
· · | for grinding railway car wheels

|  | B24B 5/48 |
· · | for grinding walls of very fine holes, e.g. in drawing-dies

|  | B24B 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 Fulltext... Hierarchy... Expanded...B29D 30/68)

|  | B24B 7/00 |
Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor (Fulltext... Hierarchy... Expanded...B24B 21/00 takes precedence; honing of plane surfaces on work Fulltext... Hierarchy... Expanded...B24B 33/055) [4]

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

|  | B24B 7/04 |
· | involving a rotary work-table

|  | B24B 7/06 |
· | involving conveyer belts, a sequence of travelling work-tables or the like

|  | B24B 7/07 |
· | involving a stationary work-table [4]

|  | B24B 7/08 |
· · | having an abrasive wheel built in

|  | B24B 7/10 |
· | Single-purpose machines or devices (grinding tools or machines specially adapted for use on assembled railway track Fulltext... Hierarchy... Expanded...E01B 31/17)

|  | B24B 7/12 |
· · | for grinding travelling elongated stock, e.g. strip-shaped work [4]

|  | B24B 7/13 |
· · · | grinding while stock moves from coil to coil [4]

|  | B24B 7/14 |
· · | for grinding slideways (portable grinding machines designed for fastening on workpieces Fulltext... Hierarchy... Expanded...B24B 23/08) [4]

|  | B24B 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 Fulltext... Hierarchy... Expanded...B24B 5/01; for grinding edges or bevels on work Fulltext... Hierarchy... Expanded...B24B 9/00) [4]

|  | B24B 7/17 |
· · · | for simultaneously grinding opposite and parallel end faces, e.g. double disc grinders [4]

|  | B24B 7/18 |
· · | for grinding floorings, walls, ceilings or the like (machines or devices for cleaning floorings Fulltext... Hierarchy... Expanded...A47L 11/00, Fulltext... Hierarchy... Expanded...A47L 13/00)

|  | B24B 7/19 |
· · | for grinding plane decorative patterns [4]

|  | B24B 7/20 |
· | characterised by a special design with respect to properties of the material of non-metallic articles to be ground

|  | B24B 7/22 |
· · | for grinding inorganic material, e.g. stone, ceramics, porcelain

|  | B24B 7/24 |
· · · | for grinding or polishing glass

|  | B24B 7/26 |
· · · · | for simultaneously grinding or polishing opposite faces of continuously travelling sheets or bands of glass

|  | B24B 7/28 |
· · | for grinding wood

|  | B24B 7/30 |
· · | for grinding plastics [4]

|  | B24B 9/00 |
Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor (Fulltext... Hierarchy... Expanded...B24B 21/00 takes precedence; for sharpening cutting edges on tools Fulltext... Hierarchy... Expanded...B24B 3/00; removing burrs by loose abrasive material Fulltext... Hierarchy... Expanded...B24B 31/00)

|  | B24B 9/02 |
· | characterised by a special design with respect to properties of materials specific to articles to be ground

|  | B24B 9/04 |
· · | of metal, e.g. skate blades

|  | B24B 9/06 |
· · | of non-metallic inorganic material, e.g. stone, ceramics, porcelain

|  | B24B 9/08 |
· · · | of glass

|  | B24B 9/10 |
· · · · | of plate glass

|  | B24B 9/12 |
· · · · | of hollow glassware, e.g. drinking glasses, preserve jars, television picture tube viewing panels

|  | B24B 9/14 |
· · · · | of optical work, e.g. lenses, prisms

|  | B24B 9/16 |
· · · | of diamonds, of jewels or the like; Diamond grinders' dops; Dop holders or tongs (for grinding sharp pointed diamonds or sapphires Fulltext... Hierarchy... Expanded...B24B 19/16) [4]

|  | B24B 9/18 |
· · | of wood

|  | B24B 9/20 |
· · | of plastics [4]

|  | B24B 11/00 |
Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor (specially designed for optical surfaces Fulltext... Hierarchy... Expanded...B24B 13/00, for seat surfaces Fulltext... Hierarchy... Expanded...B24B 15/00)

|  | B24B 11/02 |
· | for grinding balls

|  | B24B 11/04 |
· · | involving grinding wheels

|  | B24B 11/06 |
· · · | acting by the front faces, e.g. of plane, grooved, or bevelled shape

|  | B24B 11/08 |
· · · | acting by the circumference

|  | B24B 11/10 |
· · · | of cup type

|  | B24B 13/00 |
Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor (edging optical work, e.g. lenses, prisms, Fulltext... Hierarchy... Expanded...B24B 9/14) [2]

|  | B24B 13/005 |
· | Blocking means, chucks or the like; Alignment devices [4]

|  | B24B 13/01 |
· | Specific tools, e.g. bowl-like; Production, dressing or fastening of these tools [4]

|  | B24B 13/015 |
· | of televison picture tube viewing panels, headlight reflectors or the like [4]

|  | B24B 13/02 |
· | by means of tools with abrading surfaces corresponding in shape with the lenses to be made

|  | B24B 13/04 |
· | grinding of lenses involving grinding wheels controlled by gearing (Fulltext... Hierarchy... Expanded...B24B 13/06 takes precedence) [4]

|  | B24B 13/06 |
· | grinding of lenses, the tool or work being controlled by information carrying means, e.g. patterns, punched tapes, magnetic tapes [4]

|  | B24B 15/00 |
Machines or devices designed for grinding seat surfaces; Accessories therefor (for spherical surfaces in general Fulltext... Hierarchy... Expanded...B24B 11/00)

|  | B24B 15/02 |
· | in valve housings

|  | B24B 15/03 |
· · | using portable or mobile machines [4]

|  | B24B 15/04 |
· | on valve members

|  | B24B 15/06 |
· | on openings of bottles; on bottle stoppers or the like [4]

|  | B24B 15/08 |
· | for grinding co-operating seat surfaces by moving one over the other

|  | B24B 17/00 |
Special adaptations of machines or devices for grinding controlled by patterns, drawings, magnetic tapes or the like (machines or devices so-controlled for grinding the edges of lenses Fulltext... Hierarchy... Expanded...B24B 9/14; for grinding or polishing optical lens surfaces Fulltext... Hierarchy... Expanded...B24B 13/06; for grinding non-circular cross-sections Fulltext... Hierarchy... Expanded...B24B 19/08; for grinding trochoidal surfaces Fulltext... Hierarchy... Expanded...B24B 19/09; for grinding cams Fulltext... Hierarchy... Expanded...B24B 19/12; for grinding turbine blades or the like Fulltext... Hierarchy... Expanded...B24B 19/14; such control means per se Fulltext... Hierarchy... Expanded...B23Q 33/00, Fulltext... Hierarchy... Expanded...B23Q 35/00, Fulltext... Hierarchy... Expanded...G05); Accessories therefor [4]

|  | B24B 17/02 |
· | involving mechanical transmission means only

|  | B24B 17/04 |
· | involving optical auxiliary means, e.g. optical projection form grinding machines

|  | B24B 17/06 |
· · | combined with electrical transmission means, e.g. controlled by photoelectric cells

|  | B24B 17/08 |
· | involving fluid transmission means only

|  | B24B 17/10 |
· | involving electrical transmission means only, e.g. controlled by magnetic tape

|  | B24B 19/00 |
Single purpose machines or devices for particular grinding operations not covered by any other main group (tapering, chamfering or relief cutting of taps or reamers Fulltext... Hierarchy... Expanded...B24B 3/20, Fulltext... Hierarchy... Expanded...B24B 3/22; grinding screw threads Fulltext... Hierarchy... Expanded...B23G 1/36)

|  | B24B 19/02 |
· | for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements [4]

|  | B24B 19/03 |
· · | for grinding grooves in glass workpieces, e.g. decorative grooves [4]

|  | B24B 19/04 |
· · | for fluting drill shanks

|  | B24B 19/06 |
· · | for grinding races, e.g. roller races

|  | B24B 19/08 |
· | for grinding non-circular cross-sections, e.g. shafts of elliptical or polygonal cross-section

|  | B24B 19/09 |
· · | for grinding trochoidal surfaces, e.g. in rotor housings of Wankel engines [4]

|  | B24B 19/10 |
· · | for grinding pistons

|  | B24B 19/11 |
· · | for grinding the circumferential surface of rings, e.g. piston rings (grinding end faces Fulltext... Hierarchy... Expanded...B24B 7/16, Fulltext... Hierarchy... Expanded...B24B 7/17) [4]

|  | B24B 19/12 |
· · | for grinding cams or camshafts

|  | B24B 19/14 |
· | for grinding turbine blades, propeller blades or the like (using grinding belts Fulltext... Hierarchy... Expanded...B24B 21/16) [4]

|  | B24B 19/16 |
· | for grinding sharp-pointed workpieces, e.g. needles, pens, fish hooks, tweezers, record player styli (grinding bevels on diamonds or sapphires Fulltext... Hierarchy... Expanded...B24B 9/16; polishing of needles Fulltext... Hierarchy... Expanded...B24B 29/08) [4]

|  | B24B 19/18 |
· · | for grinding carding equipment, e.g. card-clothings (devices for sharpening card-clothings built in, or attachable to, carding machines Fulltext... Hierarchy... Expanded...D01G)

|  | B24B 19/20 |
· | for grinding dies (for grinding walls of very fine holes Fulltext... Hierarchy... Expanded...B24B 5/48)

|  | B24B 19/22 |
· | characterised by a special design with respect to properties of the material of non-metallic articles to be ground

|  | B24B 19/24 |
· · | of wood, e.g. furniture

|  | B24B 19/26 |
· | for grinding workpieces with arcuate surfaces, e.g. parts of car bodies, bumpers, magnetic recording heads (grinding of spherical surfaces in general Fulltext... Hierarchy... Expanded...B24B 11/00, of optical surfaces on lenses or surfaces of similar shape on other work Fulltext... Hierarchy... Expanded...B24B 13/00) [4]

|  | B24B 19/28 |
· · | for grinding shoes or linings of drum brakes (of brake drum hubs Fulltext... Hierarchy... Expanded...B24B 5/06; of brake discs Fulltext... Hierarchy... Expanded...B24B 7/17) [4]

|  | B24B 21/00 |
Machines or devices using grinding or polishing belts (for sharpening cutting edges of tools Fulltext... Hierarchy... Expanded...B24B 3/00; portable belt-grinding machines Fulltext... Hierarchy... Expanded...B24B 23/06); Accessories therefor [4]

|  | B24B 21/02 |
· | for grinding rotationally symmetrical surfaces

|  | B24B 21/04 |
· | for grinding plane surfaces

|  | B24B 21/06 |
· · | involving members with limited contact area pressing the belt against the work, e.g. shoes sweeping across the whole area to be ground (Fulltext... Hierarchy... Expanded...B24B 21/12 takes precedence)

|  | B24B 21/08 |
· · · | Pressure shoes; Backing belts

|  | B24B 21/10 |
· · | involving a rigid member, e.g. pressure bar, table, pressing or supporting the belt over substantially its whole span

|  | B24B 21/12 |
· · | involving a contact wheel or roller pressing the belt against the work

|  | B24B 21/14 |
· · · | Contact wheels; Contact rollers; Belt supporting rolls [4]

|  | B24B 21/16 |
· | for grinding other surfaces of particular shape (single purpose machines for grinding cams or camshafts Fulltext... Hierarchy... Expanded...B24B 19/12) [4]

|  | B24B 21/18 |
· | Accessories

|  | B24B 21/20 |
· · | for controlling or adjusting the tracking or the tension of the grinding belt [4]

|  | B24B 21/22 |
· · | for producing a reciprocation of the grinding belt normal to its direction of movement [4]

|  | B24B 23/00 |
Portable grinding machines, e.g. hand-guided; Accessories therefor (Fulltext... Hierarchy... Expanded...B24B 7/18 takes precedence; for grinding seat surfaces Fulltext... Hierarchy... Expanded...B24B 15/00; having a flexible shaft Fulltext... Hierarchy... Expanded...B24B 27/027; grinders for cutting-off Fulltext... Hierarchy... Expanded...B24B 27/08; dust extraction equipment Fulltext... Hierarchy... Expanded...B24B 55/10; details or components, e.g. casings, bodies, of portable power-driven tools not particularly related to the operation performed Fulltext... Hierarchy... Expanded...B25F 5/00) [4]

|  | B24B 23/02 |
· | with rotating grinding tools; Accessories therefor

|  | B24B 23/03 |
· · | the tool being driven in a combined movement [4]

|  | B24B 23/04 |
· | with oscillating grinding tools; Accessories therefor [4]

|  | B24B 23/06 |
· | with abrasive belts, e.g. with endless travelling belts; Accessories therefor [4]

|  | B24B 23/08 |
· | Portable grinding machines designed for fastening on workpieces or other parts of particular section, e.g. for grinding commutators

|  | B24B 25/00 |
Grinding machines of universal type

|  | B24B 27/00 |
Other grinding machines or devices

|  | B24B 27/02 |
· | Bench grinders [4]

|  | B24B 27/027 |
· | having a flexible shaft [4]

|  | B24B 27/033 |
· | for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface [4]

|  | B24B 27/04 |
· · | Grinding machines or devices in which the grinding tool is supported on a swinging arm

|  | B24B 27/06 |
· | Grinders for cutting-off

|  | B24B 27/08 |
· · | being portable [4]

|  | B24B 29/00 - B24B 39/00 |
Polishing surfaces (machines or devices for grinding or polishing glass Fulltext... Hierarchy... Expanded...B24B 7/24, Fulltext... Hierarchy... Expanded...B24B 9/00, Fulltext... Hierarchy... Expanded...B24B 13/00; for grinding or polishing using belts Fulltext... Hierarchy... Expanded...B24B 21/00); Finishing surfaces (Fulltext... Hierarchy... Expanded...B24B 3/00 takes precedence)

|  | B24B 29/00 |
Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents (polishing tools in general Fulltext... Hierarchy... Expanded...B24D 13/00) [4]

|  | B24B 29/02 |
· | designed for particular workpieces [4]

|  | B24B 29/04 |
· · | for rotationally symmetrical workpieces, e.g. ball-, cylinder- or cone-shaped workpieces [4]

|  | B24B 29/06 |
· · | for elongated workpieces having uniform cross-section in one main direction [4]

|  | B24B 29/08 |
· · · | the cross-section being circular, e.g. tubes, wires, needles [4]

|  | B24B 29/10 |
· · | for table cutlery [4]

|  | B24B 31/00 |
Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work or the abrasive material is loose; Accessories therefor (abrasive blasting machines Fulltext... Hierarchy... Expanded...B24C 3/26)

|  | B24B 31/02 |
· | involving rotary barrels

|  | B24B 31/023 |
· · | with tiltable axis [4]

|  | B24B 31/027 |
· · | with additional oscillating movement [4]

|  | B24B 31/03 |
· · | the workpieces being continuously-travelling [4]

|  | B24B 31/033 |
· · | having several rotating or tumbling drums with parallel axes [4]

|  | B24B 31/037 |
· · | having several rotating or tumbling drums with non-parallel axes [4]

|  | B24B 31/05 |
· | involving a container formed as a conveyer belt [4]

|  | B24B 31/06 |
· | involving oscillating or vibrating containers

|  | B24B 31/067 |
· · | involving a bowl formed as a straight trough [4]

|  | B24B 31/073 |
· · | involving a bowl being ring- or spiral-shaped [4]

|  | B24B 31/10 |
· | involving other means for tumbling of work [4]

|  | B24B 31/104 |
· · | involving a rotating bowl, in which a ring zone of abrasive powder is formed by centrifugal force [4]

|  | B24B 31/108 |
· · | involving a sectioned bowl, one part of which, e.g. its wall, is stationary and the other part of which is moved, e.g. rotated [4]

|  | B24B 31/112 |
· · | using magnetically consolidated grinding powder, moved relatively to the workpiece under the influence of pressure [4]

|  | B24B 31/116 |
· · | using plastically deformable grinding compound, moved relatively to the workpiece under the influence of pressure [4]

|  | B24B 31/12 |
· | Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially designed for machines covered by group Fulltext... Hierarchy... Expanded...B24B 31/00 (in general Fulltext... Hierarchy... Expanded...B24B 55/00) [4]

|  | B24B 31/14 |
· · | Abrading-bodies specially designed for tumbling apparatus, e.g. abrading-balls

|  | B24B 31/16 |
· · | Means for separating the workpiece from the abrasive medium at the end of operation [4]

|  | B24B 33/00 |
Honing machines or devices; Accessories therefor

|  | B24B 33/02 |
· | designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes

|  | B24B 33/04 |
· | designed for working external surfaces of revolution

|  | B24B 33/05 |
· | designed for working grooves, e.g. in gun barrels

|  | B24B 33/055 |
· | designed for working plane surfaces [4]

|  | B24B 33/06 |
· | with controlling or gauging equipment (gauging in general Fulltext... Hierarchy... Expanded...G01B; controlling in general Fulltext... Hierarchy... Expanded...G05)

|  | B24B 33/08 |
· | Honing tools

|  | B24B 33/10 |
· | Accessories

|  | B24B 35/00 |
Machines or devices designed for superfinishing surfaces on work, i.e. by means of abrading blocks reciprocating with high frequency

|  | B24B 37/00 |
Lapping machines or devices, i.e. requiring pulverulent abrading substances inserted between a lap of relatively soft but rigid material and the surface to be lapped; Accessories therefor

|  | B24B 37/02 |
· | designed for working surfaces of revolution

|  | B24B 37/04 |
· | designed for working plane surfaces

|  | B24B 39/00 |
Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone (modifying the physical properties or structure of metal by burnishing Fulltext... Hierarchy... Expanded...C21D 7/08, Fulltext... Hierarchy... Expanded...C22F 1/00); Accessories therefor

|  | B24B 39/02 |
· | designed for working internal surfaces of revolution

|  | B24B 39/04 |
· | designed for working external surfaces of revolution

|  | B24B 39/06 |
· | designed for working plane surfaces [4]

|  | B24B 41/00 - B24B 47/00 |
Component parts of grinding machines or devices so far as specially adapted to grinding (if applicable to other machine tools, Fulltext... Hierarchy... Expanded...B23Q takes precedence; if peculiar to a particular type of machine or device, see the relevant group therefor)

|  | B24B 41/00 |
Component parts such as frames, beds, carriages, headstocks

|  | B24B 41/02 |
· | Frames; Beds; Carriages

|  | B24B 41/04 |
· | Headstocks; Working-spindles; Features relating thereto

|  | B24B 41/047 |
· · | Grinding heads for working on plane surfaces [4]

|  | B24B 41/053 |
· · · | for grinding or polishing glass [4]

|  | B24B 41/06 |
· | Work supports, e.g. adjustable steadies

|  | B24B 45/00 |
Means for securing grinding wheels on rotary arbors (suppression of vibrations in systems Fulltext... Hierarchy... Expanded...F16F 15/00; testing static or dynamic balancing of machines Fulltext... Hierarchy... Expanded...G01M 1/00)

|  | B24B 47/00 |
Drives or gearings; Equipment therefor

|  | B24B 47/02 |
· | for performing a reciprocating movement of carriages or work-tables

|  | B24B 47/04 |
· · | by mechanical gearing only

|  | B24B 47/06 |
· · | by liquid or gas pressure only

|  | B24B 47/08 |
· · | by mechanical gearing combined with fluid systems

|  | B24B 47/10 |
· | for rotating or reciprocating working-spindles carrying grinding wheels or workpieces

|  | B24B 47/12 |
· · | by mechanical gearing or electric power (Fulltext... Hierarchy... Expanded...B24B 47/16 takes precedence)

|  | B24B 47/14 |
· · | by liquid or gas pressure (Fulltext... Hierarchy... Expanded...B24B 47/16 takes precedence)

|  | B24B 47/16 |
· · | performing a reciprocating movement, e.g. during which the sense of rotation of the working-spindle is reversed

|  | B24B 47/18 |
· · | for rotating the spindle at a speed adaptable to wear of the grinding wheel

|  | B24B 47/20 |
· | relating to feed movement

|  | B24B 47/22 |
· | Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation

|  | B24B 47/25 |
· | for compensating grinding wheel abrasion resulting from dressing [4]

|  | B24B 47/26 |
· | Accessories, e.g. stops

|  | B24B 47/28 |
· | Equipment for preventing backlash

|  | B24B 49/00 - B24B 51/00 |
Measuring; Indicating; Controlling

|  | B24B 49/00 |
Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation (Fulltext... Hierarchy... Expanded...B24B 33/06 takes precedence; if applicable to other machine tools, Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...B23Q 15/00-B23Q 17/00 take precedence; gauging instruments in general Fulltext... Hierarchy... Expanded...G01B)

|  | B24B 49/02 |
· | according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent (Fulltext... Hierarchy... Expanded...B24B 49/12 takes precedence) [4]

|  | B24B 49/03 |
· · | according to the final size of the previously ground workpiece [4]

|  | B24B 49/04 |
· · | involving measurement of the workpiece at the place of grinding during grinding operation [4]

|  | B24B 49/05 |
· · · | including the measurement of a first workpiece already machined and of another workpiece being machined and to be matched with the first one [4]

|  | B24B 49/06 |
· · | requiring comparison of the workpiece with standard gauging plugs, rings or the like

|  | B24B 49/08 |
· | involving liquid or pneumatic means

|  | B24B 49/10 |
· | involving electrical means (Fulltext... Hierarchy... Expanded...B24B 49/02, Fulltext... Hierarchy... Expanded...B24B 49/08 take precedence)

|  | B24B 49/12 |
· | involving optical means

|  | B24B 49/14 |
· | taking regard of the temperature during grinding

|  | B24B 49/16 |
· | taking regard of the load

|  | B24B 49/18 |
· | taking regard of the presence of dressing tools

|  | B24B 51/00 |
Arrangements for automatic control of a series of individual steps in grinding a workpiece (if applicable to other machine tools, Fulltext... Hierarchy... Expanded...G05B takes precedence)

|  | B24B 53/00 |
Devices or means for dressing or conditioning abrasive surfaces (compensation for grinding wheel abrasion resulting from dressing Fulltext... Hierarchy... Expanded...B24B 47/25) [4]

|  | B24B 53/007 |
· | Cleaning of grinding wheels [4]

|  | B24B 53/013 |
· | Application of loose grinding agent as auxiliary tool during truing operation [4]

|  | B24B 53/02 |
· | of plane surfaces on abrasive tools

|  | B24B 53/04 |
· | of cylindrical or conical surfaces on abrasive tools or wheels [4]

|  | B24B 53/047 |
· · | equipped with one or more diamonds [4]

|  | B24B 53/053 |
· · | using a rotary dressing tool [4]

|  | B24B 53/06 |
· | of profiled abrasive wheels

|  | B24B 53/065 |
· · | having other than straight profiles, e.g. crowned (Fulltext... Hierarchy... Expanded...B24B 53/07 takes precedence) [4]

|  | B24B 53/07 |
· · | by means of forming tools having a shape complementary to that to be produced, e.g. blocks, profile rolls [4]

|  | B24B 53/075 |
· · | for workpieces having a grooved profile, e.g. gears, splined shafts, threads, worms (Fulltext... Hierarchy... Expanded...B24B 53/07 takes precedence) [4]

|  | B24B 53/08 |
· · | controlled by information means, e.g. patterns, templets, punched tapes or the like

|  | B24B 53/085 |
· · · | for workpieces having a grooved profile, e.g. gears, splined shafts, threads, worms (Fulltext... Hierarchy... Expanded...B24B 53/09 takes precedence) [4]

|  | B24B 53/09 |
· · · | having transfer elements formed as pantograph mechanism [4]

|  | B24B 53/095 |
· | Cooling or lubricating during dressing operation (cooling the grinding surfaces Fulltext... Hierarchy... Expanded...B24B 55/02) [4]

|  | B24B 53/10 |
· | of travelling flexible backings coated with abrasives; Cleaning of abrasive belts [4]

|  | B24B 53/12 |
· | Dressing tools; Holders therefor [4]

|  | B24B 53/14 |
· · | Dressing tools equipped with rotary rollers or cutters; Holders therefor [4]

|  | B24B 55/00 |
Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition (of general applicability for machine tools Fulltext... Hierarchy... Expanded...B23Q 11/00; in general Fulltext... Hierarchy... Expanded...F16P)

|  | B24B 55/02 |
· | Equipment for cooling the grinding surfaces, including devices for feeding coolant (cooling or lubricating during dressing operation Fulltext... Hierarchy... Expanded...B24B 53/095; incorporated in grinding wheels Fulltext... Hierarchy... Expanded...B24D) [4]

|  | B24B 55/03 |
· · | designed as a complete equipment for feeding or clarifying coolant [4]

|  | B24B 55/04 |
· | Protective covers for the grinding wheel

|  | B24B 55/05 |
· · | specially designed for portable grinding machines [4]

|  | B24B 55/06 |
· | Dust extraction equipment on grinding or polishing machines (Fulltext... Hierarchy... Expanded...B24B 31/12 takes precedence)

|  | B24B 55/08 |
· · | specially designed for belt grinding machines [4]

|  | B24B 55/10 |
· · | specially designed for portable grinding machines, e.g. hand-guided [4]

|  | B24B 55/12 |
· | Devices for exhausting mist of oil or coolant; Devices for collecting or recovering materials resulting from grinding or polishing, e.g. of precious metals, precious stones, diamonds or the like [4]

|  | B24B 57/00 |
Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents (for abrasive blasting Fulltext... Hierarchy... Expanded...B24C 1/00, Fulltext... Hierarchy... Expanded...B24C 7/00) [4]

|  | B24B 57/02 |
· | for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents [4]

|  | B24B 57/04 |
· | for feeding of solid grinding, polishing or lapping agents [4]