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.
characterised by physical features other than shape
B23C 5/18
· ·
with permanently-fixed cutter-bits or teeth
B23C 5/20
· ·
with removable cutter-bits or teeth
B23C 5/22
· · ·
Securing arrangements for bits or teeth
B23C 5/24
· · · ·
adjustable
B23C 5/26
·
Securing milling-cutters to the driving spindle
B23C 5/28
·
Features relating to lubricating or cooling
B23C 7/00
Milling devices able to be attached to a machine tool, whether or not replacing an operative portion of the machine tool
B23C 7/02
·
to lathes
B23C 7/04
·
to planing or slotting machines
B23C 9/00
Details or accessories so far as specially adapted to milling machines or cutters (drives, control devices, or accessories, in general Fulltext... Hierarchy... Expanded...B23Q)