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.
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]
Planing or slotting machines cutting by relative movement of the tool and workpiece in a horizontal straight line only
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
P:40
B23D 5/00
Planing or slotting machines cutting otherwise than by relative movement of the tool and workpiece in a straight line
P:50
B23D 7/00
Planing or slotting machines characterised only by constructional features of particular parts (constructional features of these parts per seFulltext... Hierarchy... Expanded...B23Q)
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
Machines or devices for shearing or cutting tubes (as additional equipment for deep-drawing presses Fulltext... Hierarchy... Expanded...B21D 24/00; by sawing, see the relevant groups for sawing machines or sawing devices)
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 47/02) [2]
P:130
B23D 27/00
Machines or devices for cutting by a nibbling action
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
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 seFulltext... Hierarchy... Expanded...B23Q)
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; 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:260
B23D 49/00
Machines or devices for sawing with straight reciprocating saw blades, e.g. hacksaws
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 seFulltext... 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]
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
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 seFulltext... Hierarchy... Expanded...B23Q)
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 (sharpening the cutting edges of mortise chain cutters Fulltext... Hierarchy... Expanded...B24B 3/00)
P:340
B23D 65/00
Making tools for sawing machines or sawing devices for use in cutting any kind of material
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; 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 71/00) [4]