|  | B |
SECTION B — PERFORMING OPERATIONS; TRANSPORTING

|  | B01 - B07 |
Subsection index
LIQUID/LIQUID, LIQUID/GAS OR GAS/GAS SEPARATION |
Method |
General operations | B01D
by centrifugal force, using centrifuges or free-vortex apparatus | B01D
using magnetic or electrostatic effect | B03C
Apparatus |
General operations | B01D
by centrifugal force, using centrifuges or free-vortex apparatus | B04B, B04C
using magnetic or electrostatic effect | B03C
SOLID/LIQUID OR SOLID/GAS SEPARATION |
Method |
General operations | B01D
by centrifugal force | B01D
using centrifuges or free-vortex apparatus | B01D
using magnetic or electrostatic effect | B03C
Apparatus |
General operations | B01D
by centrifugal force | B01D
using centrifuges or free-vortex apparatus | B04B, B04C
using magnetic or electrostatic effect | B03C
SOLID/SOLID SEPARATION |
Method |
Dry methods |
material in bulk | B07B
Individual sorting | B07C
Screening, sifting, pneumatic sorting | B07B
using pneumatic tables or jigs | B03B
by magnetic or electrostatic effect | B03C
by centrifugal force | B07B
using centrifuges or free-vortex apparatus | B07B
Wet methods |
General operations | B03B
flotation, differential sedimentation | B03D
screening | B07B
Combinations Dry methods - wet methods | B03B
Apparatus |
Dry methods |
material in bulk | B07B
Individual sorting | B07C
Screening, sifting, pneumatic sorting | B07B
using pneumatic tables or jigs | B03B
by magnetic or electrostatic effect | B03C
by centrifugal force | B07B
using centrifuges or free-vortex apparatus | B04B, B04C
Wet methods |
General operations | B03B
flotation, differential sedimentation | B03D
screening | B07B
Combinations Dry methods - wet methods | B03B

SHAPING

|  | B23 |
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR (punching, perforating, making articles by processing sheet metal, tubes, or profiles Fulltext... Hierarchy... Expanded...B21D; wire-working Fulltext... Hierarchy... Expanded...B21F; making pins, needles, or nails Fulltext... Hierarchy... Expanded...B21G; making chains Fulltext... Hierarchy... Expanded...B21L; grinding Fulltext... Hierarchy... Expanded...B24)

|  | B23 |
Note(s) This class covers: operations not provided for in any other class; combinations of operations covered by different subclasses of classes Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...B21-B24, which combinations are covered by subclass Fulltext... Hierarchy... Expanded...B23P, with the exception of subsidiary operations performed in conjunction with main operations covered by a single subclass; features, specific to machine tools, which relate to a requirement or problem of a nature which is not peculiar to a particular kind of machine tool, e.g. feeding work, which are covered by subclass Fulltext... Hierarchy... Expanded...B23Q, although the realisation of these features may differ according to the kind of machine tool concerned. The said subclass covers such features, in general, even if the feature or a specific function, in any particular case, is to some extent peculiar to, or is claimed only for, machine tools designed for one particular operation; only in exceptional cases are such features classified in the subclass for the machine tool concerned. Certain features of this general nature are, however, referred to subclasses relating to particular metal-working operations, especially Fulltext... Hierarchy... Expanded...B23B, in which case the subclasses in question are not restricted, in respect of those features, to the kind of machine tool with which they are primarily concerned. In this class, the following terms or expressions are used with the meanings indicated: "metal-working" covers the working of other materials unless the context requires otherwise; "kind of operations" and similar expressions relate to such metal-working operations as boring, drilling, milling and grinding; "kind of machine" means a machine designed for a particular kind of metal-working operation (e.g. a lathe); "form of machine" means a machine of a particular kind adapted or arranged for a particular way of working or for particular work, e.g. face-plate lathe, tailstock lathe, turret lathe; "different machines" covers different forms of machines for performing the same type of metal-working operation, e.g. vertical and horizontal boring machines. If details, components, or accessories have no essential feature specific to machine tools, the more general class, e.g. Fulltext... Hierarchy... Expanded...F16, takes precedence.

|  | B23D |
PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR (making toothed gears or the like Fulltext... Hierarchy... Expanded...B23F; cutting metal by applying heat locally Fulltext... Hierarchy... Expanded...B23K; arrangements for copying or controlling Fulltext... Hierarchy... Expanded...B23Q)

|  | B23D |
Note(s) This subclass covers machines for shearing sheet metal or other stock material except metal foils workable in a manner analogous to paper, which is covered by class Fulltext... Hierarchy... Expanded...B26. [2]

|  | B23D |
Subclass index
PLANING; SLOTTING |
Working method of the machine | 1/00, 3/00, 5/00
Machines characterised by constructional features of a part | 7/00
Hand-operated devices; portable apparatus | 9/00
Devices for attachment to any machine tool | 11/00
Tools, tool holders | 13/00
SHEARING |
Working method of machines or apparatus | 15/00, 17/00, 19/00, 27/00, 31/00
Hand-held devices | 21/06, 27/02, 29/00
Tools, holders, chucks | 35/00
Accessories | 33/00
Machines for particular work | 21/00, 23/00, 25/00
Control arrangements | 36/00
BROACHING; REAMING |
Working method of machines or apparatus | 37/00
Machines or devices characterised by constructional features of a part | 41/00
Tools | 43/00, 77/00
Accessories | 39/00
Machines or devices for reaming bored holes | 75/00
SAWING |
Working method of machines or apparatus |
using saw discs | 45/00, 47/00
using straight saw blades | 49/00, 51/00
using endless saw blades | 53/00, 55/00
other working methods | 57/00
Machines or devices characterised by constructional features of a part | 47/00, 51/00, 55/00
Tools and attachment thereof; dressing thereof; making thereof | 51/00, 61/00; 63/00; 65/00
Accessories | 59/00
Control arrangements | 36/00
FILING; RASPING |
Working method of machines or apparatus | 67/00
Machines or devices characterised by constructional features of a part | 69/00
Tools; making thereof | 71/00; 73/00
OTHER METHODS, MACHINES, OR DEVICES; COMBINATIONS | 79/00; 81/00

|  | B23D 1/00 - B23D 13/00 |
Planing; Slotting

P:20 |  | B23D 1/00 |
Planing or slotting machines cutting by relative movement of the tool and workpiece in a horizontal straight line only

|  | B23D 1/02 |
· | by movement of the work-support

|  | B23D 1/04 |
· · | with the tool supported only on one side of the bed

|  | B23D 1/06 |
· · | with the tool supported on both sides of the bed

|  | B23D 1/08 |
· | by movement of the tool

|  | B23D 1/10 |
· · | with means for adjusting the tool-guide vertically

|  | B23D 1/12 |
· · · | with the tool supported only on one side of the bed

|  | B23D 1/14 |
· · · | with the tool supported on both sides of the bed

|  | B23D 1/16 |
· · | without means for adjusting the tool-guide vertically

|  | B23D 1/18 |
· | cutting on both the forward and the return stroke

|  | B23D 1/20 |
· | with tool-supports or work-supports specially mounted or guided for working in different directions or at different angles; Special purpose machines

|  | B23D 1/22 |
· · | for planing ingots or the like (scrubbing or peeling ingots by milling Fulltext... Hierarchy... Expanded...B23C 3/14)

|  | B23D 1/24 |
· · | for planing inner surfaces, e.g. of moulds

|  | B23D 1/26 |
· · | for planing edges or ridges or cutting grooves (cutting helical grooves Fulltext... Hierarchy... Expanded...B23D 5/02)

|  | B23D 1/28 |
· · | in which the tool or workpiece is fed otherwise than in a straight line, e.g. for planing profiled stock

|  | B23D 1/30 |
· · · | in which the direction of feed is controlled by a copying device, e.g. by a pattern (features of copying devices Fulltext... Hierarchy... Expanded...B23Q 35/00)

P:30 |  | B23D 3/00 |
Planing or slotting machines cutting by relative movement of the tool and workpiece in a vertical or inclined straight line

|  | B23D 3/02 |
· | for cutting grooves (cutting helical grooves Fulltext... Hierarchy... Expanded...B23D 5/02)

|  | B23D 3/04 |
· | in which the tool or workpiece is fed otherwise than in a straight line

|  | B23D 3/06 |
· · | in which the direction of feed is controlled by a copying device, e.g. by a pattern (features of copying devices Fulltext... Hierarchy... Expanded...B23Q 35/00)

P:40 |  | B23D 5/00 |
Planing or slotting machines cutting otherwise than by relative movement of the tool and workpiece in a straight line

|  | B23D 5/02 |
· | involving rotary and straight-line movements only, e.g. for cutting helical grooves

|  | B23D 5/04 |
· | controlled by a copying device, e.g. by a pattern (features of copying devices Fulltext... Hierarchy... Expanded...B23Q 35/00)

P:50 |  | B23D 7/00 |
Planing or slotting machines characterised only by constructional features of particular parts (constructional features of these parts per se Fulltext... Hierarchy... Expanded...B23Q)

|  | B23D 7/02 |
· | of frames, of work-table beds

|  | B23D 7/04 |
· | of pillars, of cross-beams

|  | B23D 7/06 |
· | of tool-carrying arrangements

|  | B23D 7/08 |
· | of work-tables

|  | B23D 7/10 |
· | of drives for reciprocating parts

|  | B23D 7/12 |
· | of arrangements for impact damping or regenerating energy

P:60 |  | B23D 9/00 |
Hand-operated planing devices; Portable planing apparatus (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]

P:70 |  | B23D 11/00 |
Planing or slotting devices able to be attached to a machine tool, whether or not replacing an operative portion of the machine tool

P:80 |  | B23D 13/00 |
Tools or tool holders specially designed for planing or slotting machines (features applicable also to turning-machines Fulltext... Hierarchy... Expanded...B23B 27/00, Fulltext... Hierarchy... Expanded...B23B 29/00; for cutting gear teeth Fulltext... Hierarchy... Expanded...B23F 21/04)

|  | B23D 13/02 |
· | Pivotally-mounted holders

|  | B23D 13/04 |
· | Holders for tool sets

|  | B23D 13/06 |
· | Devices for lifting or lowering the tool

|  | B23D 15/00 - B23D 35/00 |
Shearing; Similar cutting

P:140 |  | B23D 15/00 |
Shearing machines or shearing devices cutting by blades which move parallel to each other

|  | B23D 15/02 |
· | having both upper and lower moving blades

|  | B23D 15/04 |
· | having only one moving blade

|  | B23D 15/06 |
· | Sheet shears

|  | B23D 15/08 |
· · | with a blade moved in one plane, e.g. perpendicular to the surface of the sheet

|  | B23D 15/10 |
· · | with a blade moved in a curved surface, e.g. for producing an edge with a curved cross-section

|  | B23D 15/12 |
· | characterised by drives or gearings therefor

|  | B23D 15/14 |
· · | actuated by fluid or gas pressure

P:150 |  | B23D 17/00 |
Shearing machines or shearing devices cutting by blades pivoted on a single axis (on an axis parallel to the blade Fulltext... Hierarchy... Expanded...B23D 15/10; hand-held devices Fulltext... Hierarchy... Expanded...B23D 29/00)

|  | B23D 17/02 |
· | characterised by drives or gearings therefor

|  | B23D 17/04 |
· · | actuated by a rotary shaft

|  | B23D 17/06 |
· · | actuated by fluid or gas pressure

|  | B23D 17/08 |
· · | actuated by hand or foot operated lever mechanism

P:160 |  | B23D 19/00 |
Shearing machines or shearing devices cutting by rotary discs (by friction saw discs Fulltext... Hierarchy... Expanded...B23D 45/00)

|  | B23D 19/02 |
· | having both a fixed shearing blade and a rotary shearing disc

|  | B23D 19/04 |
· | having rotary shearing discs arranged in co-operating pairs

|  | B23D 19/06 |
· · | with several spaced pairs of shearing discs working simultaneously, e.g. for trimming or making strips

|  | B23D 19/08 |
· | for special use, e.g. for cutting curves, for chamfering edges

P:100 |  | B23D 21/00 |
Machines or devices for shearing or cutting tubes (as additional equipment for deep-drawing presses Fulltext... Hierarchy... Expanded...B21D 24/16; by sawing, see the relevant groups for sawing machines or sawing devices)

|  | B23D 21/02 |
· | otherwise than in a plane perpendicular to the axis of the tube, e.g. for making mitred cuts, for making bicycle frames

|  | B23D 21/04 |
· | Tube-severing machines with rotating tool-carrier

|  | B23D 21/06 |
· | Hand-operated tube cutters

|  | B23D 21/08 |
· · | with cutting wheels

|  | B23D 21/10 |
· · | with other cutting blades or tools

|  | B23D 21/12 |
· · · | with provision for hammering on the tool

|  | B23D 21/14 |
· | cutting inside the tube

P:110 |  | B23D 23/00 |
Machines or devices for shearing or cutting profiled stock (hand-held devices Fulltext... Hierarchy... Expanded...B23D 29/00)

|  | B23D 23/02 |
· | otherwise than in a plane perpendicular to the axis of the stock

|  | B23D 23/04 |
· | by means of holding-dies, arranged side by side, subjecting the stock to torsional stress

P:120 |  | B23D 25/00 |
Machines or arrangements for shearing stock while the latter is travelling otherwise than in the direction of the cut (control arrangements specially adapted for machines for shearing stock while the latter is travelling otherwise than in the direction of the cut Fulltext... Hierarchy... Expanded...B23D 36/00; controlling slack in travelling flexible stock Fulltext... Hierarchy... Expanded...B21C 47/10) [2]

|  | B23D 25/02 |
· | Flying shearing machines (Fulltext... Hierarchy... Expanded...B23D 25/12 takes precedence; flying shears for cutting in general Fulltext... Hierarchy... Expanded...B26D 1/56)

|  | B23D 25/04 |
· · | in which a cutting unit moves bodily with the work while cutting (Fulltext... Hierarchy... Expanded...B23D 25/06 takes precedence)

|  | B23D 25/06 |
· · | having a cutting device mounted on an oscillating lever

|  | B23D 25/08 |
· · | having two coacting shearing blades mounted independently

|  | B23D 25/10 |
· · · | on co-operating beams moving parallel to each other and attached to lever mechanisms

|  | B23D 25/12 |
· | Shearing machines with blades on coacting rotating drums

|  | B23D 25/14 |
· | without regard to the exact dimensions of the resulting material, e.g. for cutting-up scrap

P:130 |  | B23D 27/00 |
Machines or devices for cutting by a nibbling action

|  | B23D 27/02 |
· | Hand-held devices (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]

|  | B23D 27/04 |
· · | actuated by electric power

|  | B23D 27/06 |
· · | actuated by fluid or gas pressure

P:170 |  | B23D 29/00 |
Hand-held metal-shearing or metal-cutting devices (with nibbling action Fulltext... Hierarchy... Expanded...B23D 27/02; hand-operated devices for metal-cutting otherwise than by shearing Fulltext... Hierarchy... Expanded...B26B)

|  | B23D 29/02 |
· | Hand-operated metal-shearing devices

P:90 |  | B23D 31/00 |
Shearing machines or shearing devices covered by none or more than one of the groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...B23D 15/00-B23D 29/00; Combinations of shearing machines

|  | B23D 31/02 |
· | for performing different cutting operations on travelling stock, e.g. slitting and severing simultaneously

|  | B23D 31/04 |
· | for trimming stock combined with devices for shredding scrap

P:180 |  | B23D 33/00 |
Accessories for shearing machines or shearing devices (feeding stock to machines or removing stock Fulltext... Hierarchy... Expanded...B21D 43/00)

|  | B23D 33/02 |
· | Arrangements for holding, guiding, or feeding work during the operation

|  | B23D 33/04 |
· · | for making circular cuts

|  | B23D 33/06 |
· · | in which the direction of feed is controlled by a copying device, e.g. by a pattern (features of copying devices Fulltext... Hierarchy... Expanded...B23Q 35/00)

|  | B23D 33/08 |
· | Press-pads; Counter-bases; Hold-down devices

|  | B23D 33/10 |
· | Stops for positioning work

|  | B23D 33/12 |
· | Equipment for indicating where to cut

P:190 |  | B23D 35/00 |
Tools for shearing machines or shearing devices; Holders or chucks for shearing tools

P:0 |  | B23D 36/00 |
Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock while the latter is travelling otherwise than in the direction of the cut [2]

|  | B23D 37/00 - B23D 43/00 |
Broaching

P:200 |  | B23D 37/00 |
Broaching machines or broaching devices

|  | B23D 37/02 |
· | Broaching machines with horizontally-arranged working tools

|  | B23D 37/04 |
· · | for broaching inner surfaces

|  | B23D 37/06 |
· · | for broaching outer surfaces

|  | B23D 37/08 |
· | Broaching machines with vertically-arranged working tools

|  | B23D 37/10 |
· · | for broaching inner surfaces

|  | B23D 37/12 |
· · | for broaching outer surfaces

|  | B23D 37/14 |
· | Broaching machines with rotatably-arranged working tools

|  | B23D 37/16 |
· · | for broaching helical grooves

|  | B23D 37/18 |
· | Broaching machines with working tools mounted on an endless chain or belt

|  | B23D 37/20 |
· | Broaching machines with arrangements for working in opposite directions

|  | B23D 37/22 |
· | for special purposes (Fulltext... Hierarchy... Expanded...B23D 37/14 takes precedence)

P:210 |  | B23D 39/00 |
Accessories for broaching machines or broaching devices

P:220 |  | B23D 41/00 |
Broaching machines or broaching devices characterised only by constructional features of particular parts (constructional features of these parts per se Fulltext... Hierarchy... Expanded...B23Q)

|  | B23D 41/02 |
· | of frames; of work supports

|  | B23D 41/04 |
· | of tool-carrying arrangements

|  | B23D 41/06 |
· | of devices for feeding, clamping, or ejecting workpieces

|  | B23D 41/08 |
· | of drives; of control devices

P:230 |  | B23D 43/00 |
Broaching tools (for cutting gear teeth Fulltext... Hierarchy... Expanded...B23F 21/26)

|  | B23D 43/02 |
· | for cutting by rectilinear movement (Fulltext... Hierarchy... Expanded...B23D 43/08 takes precedence)

|  | B23D 43/04 |
· · | having inserted cutting edges

|  | B23D 43/06 |
· | for cutting by rotational movement

|  | B23D 43/08 |
· | mounted on an endless chain or belt

|  | B23D 45/00 - B23D 65/00 |
Sawing (surgical saws Fulltext... Hierarchy... Expanded...A61B 17/14; sawing wood or similar material Fulltext... Hierarchy... Expanded...B27B)

P:240 |  | B23D 45/00 |
Sawing machines or sawing devices with circular saw blades or with friction saw discs (shearing machines with rotary discs Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...B23D 19/00-B23D 25/00)

|  | B23D 45/02 |
· | with a circular saw blade or the stock mounted on a carriage

|  | B23D 45/04 |
· | with a circular saw blade or the stock carried by a pivoted lever

|  | B23D 45/06 |
· | with a circular saw blade arranged underneath a stationary work-table

|  | B23D 45/08 |
· | with a ring blade having inside saw teeth

|  | B23D 45/10 |
· | with a plurality of circular saw blades

|  | B23D 45/12 |
· | with a circular saw blade for cutting tubes

|  | B23D 45/14 |
· | for cutting otherwise than in a plane perpendicular to the axis of the stock, e.g. for making a mitred cut

|  | B23D 45/16 |
· | Hand-held sawing devices with circular saw blades

|  | B23D 45/18 |
· | Machines with circular saw blades for sawing stock while the latter is travelling otherwise than in the direction of the cut (control of such machines Fulltext... Hierarchy... Expanded...B23D 36/00) [2]

|  | B23D 45/20 |
· · | Flying sawing machines, the saw carrier of which is reciprocated in a guide and moves with the travelling stock during sawing

|  | B23D 45/22 |
· · | Flying sawing machines with lever-supported saw carrier which moves in a complete circular path

|  | B23D 45/24 |
· · | Flying sawing machines with lever-supported saw carrier which oscillates in an arc

|  | B23D 45/26 |
· | with high-speed cutting discs, performing the cut by frictional heat melting the material (grinders for cutting-off Fulltext... Hierarchy... Expanded...B24B 27/06)

P:250 |  | B23D 47/00 |
Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts (constructional features of these parts per se Fulltext... Hierarchy... Expanded...B23Q; 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]

|  | B23D 47/02 |
· | of frames; of guiding arrangements for work-table or saw-carrier

|  | B23D 47/04 |
· | of devices for feeding, positioning, clamping, or rotating work

|  | B23D 47/06 |
· · | for stock of indefinite length

|  | B23D 47/08 |
· | of devices for bringing the circular saw blade to the workpiece or removing same therefrom

|  | B23D 47/10 |
· · | actuated by fluid or gas pressure

|  | B23D 47/12 |
· | of drives for circular saw blades

P:260 |  | B23D 49/00 |
Machines or devices for sawing with straight reciprocating saw blades, e.g. hacksaws

|  | B23D 49/02 |
· | Hacksaw machines with straight saw blades secured to a rectilinearly-guided frame, e.g. with the frame fed stepwise in the plane of the guide

|  | B23D 49/04 |
· | Hacksaw machines with straight saw blades secured to a pivotally-arranged frame

|  | B23D 49/06 |
· | Hacksaw machines with straight saw blades for special use

|  | B23D 49/08 |
· | Pad-saw machines, i.e. machines in which the blade is attached to a carrier at one end only

|  | B23D 49/10 |
· | Hand-held or hand-operated sawing devices with straight saw blades

|  | B23D 49/11 |
· · | for special purposes, e.g. offset-blade hand saws [5]

|  | B23D 49/12 |
· · | Hacksaws (Fulltext... Hierarchy... Expanded...B23D 49/11, Fulltext... Hierarchy... Expanded...B23D 49/16 take precedence; bows adjustable in length or height Fulltext... Hierarchy... Expanded...B23D 51/12) [5]

|  | B23D 49/14 |
· · | Pad saws (Fulltext... Hierarchy... Expanded...B23D 49/11, Fulltext... Hierarchy... Expanded...B23D 49/16 take precedence) [5]

|  | B23D 49/16 |
· · | actuated by electric or magnetic power or prime movers (Fulltext... Hierarchy... Expanded...B23D 49/11 takes precedence) [5]

P:270 |  | B23D 51/00 |
Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts (constructional features of these parts per se Fulltext... Hierarchy... Expanded...B23Q; 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); Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends [4]

|  | B23D 51/01 |
· | characterised by the handle [5]

|  | B23D 51/02 |
· | of beds; of guiding arrangements for work-tables or saw carriers; of frames [5]

|  | B23D 51/03 |
· · | with extensible or collapsible frames [5]

|  | B23D 51/04 |
· | of devices for feeding, positioning, clamping, or rotating work

|  | B23D 51/06 |
· · | for stock of indefinite length

|  | B23D 51/08 |
· | of devices for mounting straight saw blades or other tools

|  | B23D 51/10 |
· · | for hand-held or hand-operated devices

|  | B23D 51/12 |
· · | for use with tools, dealt with in this subclass, which are connected to a carrier at both ends, e.g. bows adjustable in length or height

|  | B23D 51/14 |
· · · | Attachment of the tool

|  | B23D 51/16 |
· | of drives or feed mechanisms for straight tools, e.g. saw blades, or bows

|  | B23D 51/18 |
· · | actuated by fluid or gas pressure (Fulltext... Hierarchy... Expanded...B23D 51/20 takes precedence)

|  | B23D 51/20 |
· · | with controlled feed of the tool, or with special arrangements for relieving or lifting the tool on the return stroke

P:280 |  | B23D 53/00 |
Machines or devices for sawing with strap saw blades which are effectively endless in use, e.g. for contour cutting

|  | B23D 53/02 |
· | with stationarily-mounted wheels carrying the strap (Fulltext... Hierarchy... Expanded...B23D 53/06 takes precedence)

|  | B23D 53/04 |
· | with the wheels carrying the strap mounted shiftably or swingingly, other than merely for adjustment

|  | B23D 53/06 |
· | with shiftable or swinging work-table

|  | B23D 53/08 |
· | for cutting profiled stock

|  | B23D 53/10 |
· | Sawing devices working with strap saw blades able to be attached to a machine tool, whether or not replacing an operative portion of the machine tool

|  | B23D 53/12 |
· | Hand-held or hand-operated sawing devices working with strap saw blades

P:290 |  | B23D 55/00 |
Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts (constructional features of these parts per se Fulltext... Hierarchy... Expanded...B23Q)

|  | B23D 55/02 |
· | of frames; of tables

|  | B23D 55/04 |
· | of devices for feeding or clamping work

|  | B23D 55/06 |
· | of drives for strap saw blades; of wheel mountings

|  | B23D 55/08 |
· | of devices for guiding or feeding strap saw blades

|  | B23D 55/10 |
· | of devices for tensioning strap saw blades (Fulltext... Hierarchy... Expanded...B23D 55/06 takes precedence; incorporated in the strap Fulltext... Hierarchy... Expanded...B23D 61/12)

P:300 |  | B23D 57/00 |
Sawing machines or sawing devices not covered by one of groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...B23D 45/00-B23D 55/00

|  | B23D 57/02 |
· | with chain saws

P:310 |  | B23D 59/00 |
Accessories specially designed for sawing machines or sawing devices (lubricating or cooling machine tools in general Fulltext... Hierarchy... Expanded...B23Q 11/12)

|  | B23D 59/02 |
· | Devices for lubricating or cooling circular saw blades

|  | B23D 59/04 |
· | Devices for lubricating or cooling straight or strap saw blades

P:320 |  | B23D 61/00 |
Tools for sawing machines or sawing devices (tools for trepanning Fulltext... Hierarchy... Expanded...B23B 51/04); Clamping devices for these tools

|  | B23D 61/02 |
· | Circular saw blades

|  | B23D 61/04 |
· · | with inserted saw teeth

|  | B23D 61/06 |
· · · | in exchangeable arrangement

|  | B23D 61/08 |
· · | Ring saw blades with internal saw teeth

|  | B23D 61/10 |
· · | clamped between hubs; Clamping or aligning devices therefor

|  | B23D 61/12 |
· | Straight saw blades; Strap saw blades

|  | B23D 61/14 |
· · | with inserted saw teeth

|  | B23D 61/16 |
· · · | in exchangeable arrangement

|  | B23D 61/18 |
· | Sawing tools of special type, e.g. wire saw strands, saw blades or saw wire equipped with diamonds or other abrasive particles in selected individual positions

P:330 |  | B23D 63/00 |
Dressing the tools of sawing machines or sawing devices for use in cutting any kind of material, e.g. in the manufacture of sawing tools

|  | B23D 63/02 |
· | Setting saw teeth by means of hand-operated devices

|  | B23D 63/04 |
· | Setting saw teeth of circular, straight, or strap saw blades by means of power-operated devices

|  | B23D 63/06 |
· | Upsetting the cutting edges of saw teeth, e.g. swaging

|  | B23D 63/08 |
· | Sharpening the cutting edges of saw teeth

|  | B23D 63/10 |
· · | by filing

|  | B23D 63/12 |
· · | by grinding

|  | B23D 63/14 |
· · · | Sharpening circular saw blades

|  | B23D 63/16 |
· · | of chain saws (of mortise chain cutters Fulltext... Hierarchy... Expanded...B24B 3/14)

|  | B23D 63/18 |
· | Straightening damaged saw blades; Reconditioning the side surface of saw blades, e.g. by grinding

|  | B23D 63/20 |
· | Combined processes for dressing saw teeth, e.g. both hardening and setting

P:340 |  | B23D 65/00 |
Making tools for sawing machines or sawing devices for use in cutting any kind of material

|  | B23D 65/02 |
· | Making saw teeth by punching, cutting, or planing

|  | B23D 65/04 |
· | Making saw teeth by milling

|  | B23D 67/00 - B23D 73/00 |
Filing or rasping (sharpening saw teeth thereby Fulltext... Hierarchy... Expanded...B23D 63/10)

P:350 |  | B23D 67/00 |
Filing or rasping machines or devices (securing arrangements for files or rasps Fulltext... Hierarchy... Expanded...B23D 71/00)

|  | B23D 67/02 |
· | with reciprocating tools, mounted on a yoke or the like

|  | B23D 67/04 |
· | with reciprocating tools, attached to a carrier at one end only

|  | B23D 67/06 |
· | with rotating tools

|  | B23D 67/08 |
· | with tools mounted on an endless chain or belt

|  | B23D 67/10 |
· | for special use, e.g. for filing keys; Accessories therefor

|  | B23D 67/12 |
· | Hand-held or hand-operated filing or rasping devices (hand files or rasps Fulltext... Hierarchy... Expanded...B23D 71/04)

P:360 |  | B23D 69/00 |
Filing or rasping machines or devices, characterised only by constructional features of particular parts, e.g. guiding arrangements, drives (constructional features of these parts per se Fulltext... Hierarchy... Expanded...B23Q; 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); Accessories for filing or rasping (attached to the tool Fulltext... Hierarchy... Expanded...B23D 71/10) [4]

|  | B23D 69/02 |
· | Guiding arrangements for hand tools

P:370 |  | B23D 71/00 |
Filing or rasping tools; Securing arrangements therefor (tool holders for machine tools Fulltext... Hierarchy... Expanded...B23Q 3/00; handles for hand implements Fulltext... Hierarchy... Expanded...B25G)

|  | B23D 71/02 |
· | for filing or rasping machines or devices

|  | B23D 71/04 |
· | Hand files or hand rasps (carrying or attaching means for tools which are connected to a carrier at both ends Fulltext... Hierarchy... Expanded...B23D 51/12; guiding arrangements Fulltext... Hierarchy... Expanded...B23D 69/02)

|  | B23D 71/06 |
· · | using a single interchangeable blade

|  | B23D 71/08 |
· · | using a plurality of interchangeable cutting elements

|  | B23D 71/10 |
· | Accessories for filing or rasping tools, e.g. for preventing scoring of workpieces by the edges of the tool

P:380 |  | B23D 73/00 |
Making files or rasps

|  | B23D 73/02 |
· | Preliminary treatment of blanks, e.g. grinding, polishing, specially adapted for the manufacture of files or rasps

|  | B23D 73/04 |
· | Methods or machines for the manufacture of files or rasps (non-mechanical methods, see the relevant classes)

|  | B23D 73/06 |
· · | Cutting the working surfaces by means of chisels

|  | B23D 73/08 |
· · | Milling, planing, slotting, knurling, or broaching the working surfaces

|  | B23D 73/10 |
· · | Grinding the working surfaces

|  | B23D 73/12 |
· · | Peculiar procedures for sharpening or otherwise treating the working surfaces (special treatment by sand-blast Fulltext... Hierarchy... Expanded...B24C 1/02; sharpening files by etching Fulltext... Hierarchy... Expanded...C23F 1/06)

|  | B23D 73/14 |
· | Tools or accessories specially adapted for making files or rasps, e.g. chisels, supporting-frames

|  | B23D 75/00 - B23D 77/00 |
Reaming bored holes

P:390 |  | B23D 75/00 |
Reaming machines or reaming devices (tool holders for machine tools Fulltext... Hierarchy... Expanded...B23Q 3/00; handles for hand implements Fulltext... Hierarchy... Expanded...B25G)

P:400 |  | B23D 77/00 |
Reaming tools

|  | B23D 77/02 |
· | Reamers with inserted cutting edges

|  | B23D 77/04 |
· · | with cutting edges adjustable to different diameters along the whole cutting length

|  | B23D 77/06 |
· | Reamers with means for compensating wear (Fulltext... Hierarchy... Expanded...B23D 77/04 takes precedence)

|  | B23D 77/08 |
· · | by spreading slotted parts of the tool body

|  | B23D 77/10 |
· · | by expanding a tube-like non-slotted part of the tool body

|  | B23D 77/12 |
· | Reamers with cutting edges arranged in tapered form

|  | B23D 77/14 |
· | Reamers for special use, e.g. for working cylinder ridges

P:410 |  | B23D 79/00 |
Methods, machines or devices not covered elsewhere, for working metal by removal of material (by combined operations Fulltext... Hierarchy... Expanded...B23D 81/00; working of metal by the action of a high concentration of electric current Fulltext... Hierarchy... Expanded...B23H; cutting by electron-beam Fulltext... Hierarchy... Expanded...B23K 15/00, by laser beam Fulltext... Hierarchy... Expanded...B23K 26/00; other working of metal Fulltext... Hierarchy... Expanded...B23P; tool holders for machine tools Fulltext... Hierarchy... Expanded...B23Q 3/00; handles for hand implements Fulltext... Hierarchy... Expanded...B25G)

|  | B23D 79/02 |
· | Machines or devices for scraping (turning machines for bevelling, chamfering, or deburring the ends of bars or tubes Fulltext... Hierarchy... Expanded...B23B 5/16; scrubbing or peeling ingots by milling Fulltext... Hierarchy... Expanded...B23C 3/14)

|  | B23D 79/04 |
· · | with rotating cutting-tool, e.g. for smoothing linings of bearings

|  | B23D 79/06 |
· · | with reciprocating cutting-tool

|  | B23D 79/08 |
· · | Hand scraping-implements

|  | B23D 79/10 |
· · | Accessories for holding scraping tools or work to be scraped

|  | B23D 79/12 |
· | Machines or devices for peeling bars or tubes by making use of cutting bits arranged around the workpiece, otherwise than by turning (by turning Fulltext... Hierarchy... Expanded...B23B 5/12) [2]

P:10 |  | B23D 81/00 |
Methods, machines, or devices for working metal, covered by more than one main group in this subclass (in combination with other metal-working operations Fulltext... Hierarchy... Expanded...B23P 13/00, Fulltext... Hierarchy... Expanded...B23P 23/00)