The term "metal-working" should be understood as covering the working of other materials unless the context requires otherwise.
The term "kind of operation" and similar expressions relate to such metal-working operations as boring, drilling, milling and grinding.
The term "kind of machine" means a machine designed for a particular kind of metal-working operation (e.g. a lathe).
The term "form of machine" means a machine of a particular kind adapted or arranged for a particular way of working or for particular kind adapted or arranged for a particular work, e.g. face-plate lathe, tailstock lathe, turret lathe).
The term "different machines" is to be understood as covering different forms of machine for performing the same type of metal-working operation, e.g. vertical and horizontal boring machines.
Sub-class Fulltext... Hierarchy... Expanded...B23Q comprises 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, although the realisation of these features may differ according to the kind of machine tool concerned.
That sub-class provides in general for such features, 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 to be classified in the sub-class for the machine tool concerned. Certain features of this general nature are, however, referred to sub-classes relating to particular metal-working operations, especially Fulltext... Hierarchy... Expanded...B23B, in which case the sub-classes in question are not restricted, in respect of those features, to the kind of machine tool with which they are primarily concerned. 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.
Planing or slotting machines characterised only by constructional features of particular parts (constructional features of these parts per seFulltext... Hierarchy... Expanded...B23Q)
B23D 7/02
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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
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of drives for reciprocating parts
B23D 7/12
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of arrangements for impact damping or regenerating energy
having both a fixed shearing blade and a rotary shearing disc
B23D 19/04
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having rotary shearing discs arranged in co-operating pairs
B23D 19/06
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with several spaced pairs of shearing discs working simultaneously, e.g. for trimming or making strips
B23D 19/08
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for special use, e.g. for cutting curves, for chamfering edges
B23D 21/00
Machines or devices for shearing or cutting tubes (by sawing, see the relevant groups for sawing machines or sawing devices; as additional equipment for deep-drawing presses Fulltext... Hierarchy... Expanded...B21D 24/16)
B23D 21/02
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otherwise than in a plane perpendicular to the axis of the tube, e.g. for making mitred cuts, for making bicycle frames
otherwise than in a plane perpendicular to the axis of the stock
B23D 23/04
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by means of holding-dies, arranged side by side, subjecting the stock to torsional stress
B23D 25/00
Machines or arrangements for shearing stock while the latter is travelling otherwise than in the direction of the cut (controlling slack in travelling flexible stock Fulltext... Hierarchy... Expanded...B21C 47/10)
Accessories for broaching machines or broaching devices
B23D 41/00
Broaching machines or broaching devices characterised only by constructional features of particular parts (constructional features of these parts per seFulltext... Hierarchy... Expanded...B23Q)
B23D 41/02
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of frames; of work supports
B23D 41/04
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of tool-carrying arrangements
B23D 41/06
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of devices for feeding, clamping, or ejecting workpieces
with a circular saw blade or the stock mounted on a carriage
B23D 45/04
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with a circular saw blade or the stock carried by a pivoted lever
B23D 45/06
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with a circular saw blade arranged underneath a stationary work-table
B23D 45/08
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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
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for cutting otherwise than in a plane perpendicular to the axis of the stock, e.g. for making a mitred cut
B23D 45/16
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Hand-held sawing devices with circular saw blades
B23D 45/18
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Machines with circular saw blades for sawing stock while the latter is travelling otherwise than in the direction of the cut
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
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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
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With high-speed cutting discs, performing the cut by frictional heat melting the material
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 seFulltext... Hierarchy... Expanded...B23Q)
B23D 47/02
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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
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for stock of indefinite length
B23D 47/08
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of devices for bringing the circular saw blade to the workpiece or removing same therefrom
B23D 47/10
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actuated by fluid or gas pressure
B23D 47/12
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of drives for circular saw blades
B23D 49/00
Machines or devices for sawing with straight reciprocating saw blades, e.g. hacksaws
B23D 49/02
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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
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Hacksaw machines with straight saw blades secured to a pivotally-arranged frame
B23D 49/06
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Hacksaw machines with straight saw blades for special use
B23D 49/08
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Pad-saw machines, i.e. machines in which the blade is attached to a carrier at one end only
B23D 49/10
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Hand-held or hand-operated sawing devices with straight saw blades
actuated by electric or magnetic power or prime movers
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 seFulltext... Hierarchy... Expanded...B23Q); Carrying or attaching means for tools, dealt with in this sub-class, which are connected to a carrier at both ends
B23D 51/02
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of beds; of guiding arrangements for work-tables or saw carriers
B23D 51/04
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of devices for feeding, positioning, clamping, or rotating work
B23D 51/06
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for stock of indefinite length
B23D 51/08
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of devices for mounting straight saw blades or other tools
B23D 51/10
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for hand-held or hand-operated devices
B23D 51/12
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for use with tools, dealt with in this sub-class, 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
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of drives or feed mechanisms for straight tools, e.g. saw blades, or bows
with the wheels carrying the strap mounted shiftably or swingingly, other than merely for adjustment
B23D 53/06
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with shiftable or swinging work-table
B23D 53/08
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for cutting profiled stock
B23D 53/10
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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
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Hand-held or hand-operated sawing devices working with strap saw blades
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 seFulltext... Hierarchy... Expanded...B23Q)
B23D 55/02
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of frames; of tables
B23D 55/04
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of devices for feeding or clamping work
B23D 55/06
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of drives for strap saw blades; of wheel mountings
B23D 55/08
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of devices for guiding or feeding strap saw blades
clamped between hubs; Clamping or aligning devices therefor
B23D 61/12
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Straight saw blades; Strap saw blades
B23D 61/14
· ·
with inserted saw teeth
B23D 61/16
· · ·
in exchangeable arrangement
B23D 61/18
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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
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
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Setting saw teeth by means of hand-operated devices
B23D 63/04
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Setting saw teeth of circular, straight, or strap saw blades by means of power-operated devices
B23D 63/06
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Upsetting the cutting edges of saw teeth, e.g. swaging
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 seFulltext... Hierarchy... Expanded...B23Q); Accessories for filing or rasping (attached to the tool Fulltext... Hierarchy... Expanded...B23D 71/10)