|  | B |
SECTION B — PERFORMING OPERATIONS

SHAPING

|  | B24 |
GRINDING; POLISHING

|  | B24B |
MACHINES, DEVICES OR METHODS FOR GRINDING OR POLISHING (tools for grinding, buffing or sharpening Fulltext... Hierarchy... Expanded...B24D; grinding of gear teeth Fulltext... Hierarchy... Expanded...B23F; of screw threads Fulltext... Hierarchy... Expanded...B23G 1/36; by electro-erosion Fulltext... Hierarchy... Expanded...B23P 1/00; by electrolytic treatment Fulltext... Hierarchy... Expanded...C23B; grinding arrangements for use on assembled railway tracks Fulltext... Hierarchy... Expanded...E01B 31/17); TRUING OF GRINDING STONES; FEEDING OF GRINDING AGENTS

|  | B24B 1/00 |
Methods for grinding or working essentially requiring the use of grinding, polishing, or finishing machines or devices; Use of auxiliary equipment in connection with such methods (electrolytic grinding Fulltext... Hierarchy... Expanded...B23P 1/00)

|  | B24B 1/02 |
· | for cutting pieces from stock, i.e. severing (machines therefor Fulltext... Hierarchy... Expanded...B24B 27/06)

|  | B24B 1/04 |
· | for making holes by using pulverulent abrading substances, subjected to a bouncing action of ultrasonic frequency

|  | 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 classes 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 sickles

|  | 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 scalloped edges

|  | B24B 3/60 |
· | of tools not covered by the preceding sub-groups

|  | 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; Accessories therefor (Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...B24B 11/00-B24B 21/00 take precedence)

|  | 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 working-spindle

|  | B24B 5/10 |
· · · | involving a horizontal working-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 (work supports with bracing means Fulltext... Hierarchy... Expanded...B24B 41/06)

|  | 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 5/32 |
· · | involving indexable work-supporting means carrying several work-pieces to be operated on in succession

|  | B24B 5/34 |
· · | Accessories, e.g. for supporting work

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

|  | 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 railways 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 (grinding profiles in treads of tyres Fulltext... Hierarchy... Expanded...B29H 17/40)

|  | B24B 7/00 |
Machines or devices designed for grinding plane surfaces on work; Accessories therefor (Fulltext... Hierarchy... Expanded...B24B 21/00 takes precedence)

|  | B24B 7/02 |
· | involving a reciprocatingly-moved work-table or grinding wheel

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

|  | B24B 7/06 |
· | involving a sequence of travelling work-tables

|  | B24B 7/08 |
· | involving a stationary work-table with an abrasive wheel built in

|  | B24B 7/10 |
· | Single-purpose machines or devices (grinding tools or machines specially designed for use on assembled railway track Fulltext... Hierarchy... Expanded...E01B 31/12)

|  | B24B 7/12 |
· · | for grinding travelling elongated stock, e.g. sheets

|  | B24B 7/14 |
· · | for grinding slideways, e.g. of machine tools

|  | B24B 7/16 |
· · | for grinding end faces, e.g. of gap gauges, gauge blocks, rollers, nuts, piston rings, coils (for bevelling Fulltext... Hierarchy... Expanded...B24B 9/00)

|  | B24B 7/18 |
· · | for grinding floorings, e.g. terrazzo, parquet (machines or devices for cleaning floorings Fulltext... Hierarchy... Expanded...A47L 11/00, Fulltext... Hierarchy... Expanded...A47L 13/00)

|  | 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 stone, ceramic, crystals, or vitrified substances, e.g. tiles

|  | B24B 7/24 |
· · | for grinding or polishing glass, e.g. plate-glass

|  | B24B 7/26 |
· · · | on opposite faces on continuously-travelling bands of glass

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

|  | B24B 9/00 |
Machines or devices designed for grinding edges of or bevels on work; Accessories therefor (Fulltext... Hierarchy... Expanded...B24B 21/00 takes precedence; for sharpening cutting edges on tools Fulltext... Hierarchy... Expanded...B24B 3/00)

|  | 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 stone, ceramics, or vitrified substances

|  | B24B 9/08 |
· · | of glass

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

|  | B24B 9/12 |
· · · | of hollow glassware

|  | B24B 9/14 |
· · · | of lenses; of prisms

|  | B24B 9/16 |
· · | of diamonds; of jewels; Diamond grinders' dops; Dop holders or tongs

|  | B24B 9/18 |
· · | of wood

|  | 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 optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor (for spherical surfaces in general Fulltext... Hierarchy... Expanded...B24B 11/00)

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

|  | B24B 13/04 |
· | involving grinding wheels controlled by a gearing

|  | 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 15/04 |
· | on poppets

|  | B24B 15/06 |
· | on stoppers, e.g. for bottles

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

|  | B24B 17/00 |
Machines or devices for grinding controlled by patterns, magnetic tapes, or equivalent means, e.g. by copying devices (such control means per se Fulltext... Hierarchy... Expanded...B23Q 33/00, Fulltext... Hierarchy... Expanded...B23Q 35/00, Fulltext... Hierarchy... Expanded...G05); Accessories therefor

|  | B24B 17/00 |
Note(s) This group is restricted to special adaptions of machines or devices controlled by patterns, etc., to grinding, the machines or devices being classified in the sub-groups according to kind of control apparatus used.

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

|  | B24B 17/04 |
· | involving optical means

|  | B24B 17/06 |
· · | combined with electrical transmission means

|  | 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 preceding main group (Fulltext... Hierarchy... Expanded...B24B 21/00 takes precedence; tapering, chamfering or relief cutting of taps or reamers Fulltext... Hierarchy... Expanded...B24B 3/20, Fulltext... Hierarchy... Expanded...B24B 3/22); Accessories therefor (grinding screw threads Fulltext... Hierarchy... Expanded...B23G 1/36)

|  | B24B 19/02 |
· | for grinding grooves, e.g. on shafts, in casings, in tubes, in gun barrels

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

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

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

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

|  | B24B 19/11 |
· · | for grinding rings, e.g. piston rings

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

|  | B24B 19/14 |
· | for grinding turbine or impeller or wheels

|  | B24B 19/16 |
· | for grinding sharp-pointed workpieces, e.g. needles, injection needles

|  | 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 arcuate surfaces, e.g. on brake shoes, on brake linings

|  | B24B 21/00 |
Machines or devices using abrasive belts or cords, e.g. for sanding wood; Accessories therefor (for sharpening cutting edges of tools Fulltext... Hierarchy... Expanded...B24B 3/00; portable arrangements Fulltext... Hierarchy... Expanded...B24B 23/06)

|  | B24B 21/02 |
· | designed for grinding surfaces of revolution on work

|  | B24B 21/04 |
· | designed 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; Pressure members

|  | 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

|  | B24B 21/16 |
· | designed for grinding other surfaces of particular shape

|  | B24B 21/18 |
· | Accessories, e.g. for controlling the tracking of the grinding belts

|  | B24B 23/00 |
Portable grinding machines or devices; Accessories therefor; Accessories for use with hand grinding tools (Fulltext... Hierarchy... Expanded...B24B 7/18 takes precedence; supporting or guiding portable or suspended metal-working or like apparatus, in general Fulltext... Hierarchy... Expanded...B23P 17/00)

|  | B24B 23/02 |
· | with grinding wheels or discs

|  | B24B 23/04 |
· | with oscillating abrasive blocks

|  | B24B 23/06 |
· | with endless travelling abrasive belts

|  | B24B 23/08 |
· | Arrangements for securing portable grinding machines or devices or 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; Grinders with flexible shaft

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

|  | B24B 29/00 - B24B 39/00 |
Note(s) The groups under this heading are restricted to features peculiar to the specified arts; other features are classified in the preceding groups for grinding machines or devices.

|  | B24B 29/00 |
Machines or devices designed for polishing surfaces on work by means of buffing tools, i.e. of soft and flexible material without abrasive properties; Accessories therefor

|  | 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 31/04 |
· · | with tiltable axis

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

|  | B24B 31/08 |
· | involving a rotating bowl in which a ring zone of abrasive powder is formed by centrifugal forces

|  | B24B 31/10 |
· | involving other means for mutual tumbling of work

|  | B24B 31/12 |
· | Accessories

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

|  | B24B 33/00 |
Honing machines or devices using abrading blocks performing axial and rotary movements superimposed on one another; 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 33/06 |
· | with controlling or gauging equipment (gauging in general Fulltext... Hierarchy... Expanded...G01B; controlling in general Fulltext... Hierarchy... Expanded...G05)

|  | B24B 33/08 |
· | Honing tools for such machines or devices (abrading blocks per se Fulltext... Hierarchy... Expanded...B24D)

|  | 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 37/06 |
· | designed for working grooves, e.g. in gun barrels

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

|  | 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 41/06 |
· | 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 (reciprocating spindle mountings Fulltext... Hierarchy... Expanded...B24B 47/02)

|  | 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 essentially 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 47/24 |
· · | involving adjusting the position of dressing tools

|  | 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...B23Q 15/00, Fulltext... Hierarchy... Expanded...B23Q 17/00 take precedence; gauging instruments per se 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; according to the final size of the previously-ground workpiece (Fulltext... Hierarchy... Expanded...B24B 49/12 takes precedence)

|  | B24B 49/04 |
· · | involving measurement of the workpiece

|  | 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 truing or conditioning abrading surfaces

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

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

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

|  | B24B 53/08 |
· · | controlled by a pattern or a lever mechanism or gearing

|  | B24B 53/10 |
· | of travelling flexible backings coated with abrasives

|  | B24B 53/12 |
· | Dressing tools equipped with diamonds; Holders therefor

|  | B24B 53/14 |
· | Dressing tools equipped with rotary cutters; Holders therefor

|  | B24B 55/00 |
Safety devices specially combined with or arranged in or specially designed for use in connection with grinding and polishing machines; Accessories fitted to grinding and 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 (incorporated in grinding wheels Fulltext... Hierarchy... Expanded...B24D)

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

|  | B24B 55/06 |
· | Dust-extraction equipment on grinding machines

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