[0001] The present invention relates to a personal armour system.
[0002] It is well known to provide personal armour in the form of armour components which
are specifically designed to be worn about the body to protect against knife, splinter
or ballistic attack.
[0003] It is also well known to design vehicles which include armour protection for protecting
the vehicle and its occupants against various types of weapon, for example small arms
fire and splinters. The armour remains fixed to the vehicle and cannot be used in
different roles.
[0004] The present inventor has realised that there is a need for a personal armour system
which can be used in a number of different roles, for example for providing protection
for occupants of a vehicle and for providing ballistic shields for field positions.
Such a multirole personal armour system can be used and reused wherever personnel
have a need for ballistic or splinter protection
[0005] Accordingly, in a first aspect, the present invention provides a personal armour
system, comprising a plurality of armour components, each being configured for selective
use in a plurality of different roles.
[0006] Two of the different roles may comprise the roles of seat armour component and stretcher.
The provision of a single armour component which can fulfil both these roles is inventive
in its own right and, in a second aspect, there is provided a vehicle seat armour
component that can also be used as a stretcher.
[0007] The present inventor has further realised that there is a need for an armour component
for a vehicle that can be stored in a position when it is not required so that it
does not interfere with vision out of the vehicle.
[0008] Accordingly, in a third aspect, there is provided an armour component for use in
a vehicle which armour component is movable from a first position in which it does
not obscure a part of the view from the vehicle to a second position in which it can
protect an occupant.
[0009] Preferred and/or optional features of the invention will be described further below.
ARMOUR SYSTEM
[0010] The present invention provides an armour system. The system may exist in a number
of forms.
[0011] It is particularly preferred that the amour system comprises a kit comprising a plurality
of armour components. In this way, the kit can be stored or transported in a simple
manner and then deployed in a selected role as required.
[0012] The kit can be a standard issue kit, comprising a predetermined set of armour components.
Such a standard issue kit can be issued to personnel, stored by them and used when
required.
[0013] There may be different types of kit, for example a basic kit comprising a first set
of armour components, as described below, and an additional kit for providing more
armour components.
[0014] The kit may comprise a number of different types of component, as will be described
further below. At least some, and preferably all, of the armour components are multirole
armour components.
[0015] The user may employ all of the components in a selected role or the user may choose
components which are suitable for the selected role or kind of threat to which personnel
will be exposed. In this manner, a particularly flexible system can be provided.
[0016] The system of the present invention can be used by a number of different types of
personnel including soldiers, special forces, police and security agents and private
security personnel.
[0017] The vehicle seat armour component of the second aspect of the invention and the extendable
armour component of the third aspect of the invention may each form a component of
the system of the first aspect of the invention.
ARMOUR MATERIAL
[0018] The present invention may employ any suitable type of armour material. The armour
material may be selected from armoured metal, for example armoured steel, or synthetic
polymeric armour, for example a polymer composite. The synthetic polymeric armour
may comprise components selected from KEVLAR (RTM) fibres, aramid fibres,nylon fibres,
glass fibre etc. The armour material may comprise Dyneema (RTM).
[0019] The armour components may be designed so that they can provide armour protection
against specified forms of attack. For example, the armour components may provide
protection from splinters, for example due to grenades, artillery fire, mines or other
explosive devices. The armour components may provide protection against a specified
calibre of small arms fire, for example NATO standard 7.62mm x 51mm, 7.62 x 39mm AK47,
9mm parabellum, 5.56mm sS109 or any other selected small arms ammunition. The armour
may provide protection against blast and fragmentation, for example at a level of
V50>500m/s for 1.1g FSP, according to STANAG 2920. It may comprise for example a blanket
material. The skilled person will be able to select designs of material for providing
protection required.
ROLES OF ARMOUR COMPONENTS
[0020] At least some armour components of the system of the present invention are configured
so that they can be used in a plurality of different roles. Preferably, they can be
used in at least two different roles and preferably more.
[0021] The different roles may be selected from:
Personal body armour
Armour for a vehicle, such as a road vehicle, water vehicle or aircraft such as a
helicopter. For example, the armour component may be deployed as armour for a seat
of a vehicle or aircraft to protect an occupant of the seat.
Armour for a part of a building where personnel rest or operate, such as armour for
a bed, bunk or seat.
Field protection.
Protected sleeping space.
Portable shield
Carrying device, for example a stretcher
[0022] An armour component for use in the system of the invention may be able to fulfil
at least two and preferably more of these roles.
CONFIGURING ARMOUR COMPONENTS FOR DIFFERENT ROLES
[0023] In order to allow armour components to be used in different roles, they may be provided
with features selected from the following;
[0024] Fixings ― the armour components may comprise fixings for engaging other structures. For example,
they may be configured to engage other armour components. They may be configured to
engage a framework. The framework may be provided as a component of the armour system.
The framework may comprise a pre-existing structure, such as a seat (for example vehicle
seat) or bed. Such a pre existing framework is particularly useful, as it can provide
a rigid framework, onto which armour components may be fitted and which allows the
armour components themselves to be simple in design. Fixings which have a variable
component allow armour components to be fixed to different types of structure, for
example seats of different types of vehicle. Armour components are preferably configured
so that they can be placed in the passenger or goods carrying space of a vehicle.
[0025] Preferably, a plurality of different types of armour component each have compatible
fixings, for example, clips. Preferably, a plurality of different armour components
(or components of the same type) may be interchangeably connected in different configurations.
Preferably, two or more may be connected together.
[0026] Carrying devices, such as handles, straps (for example back pack straps or shoulder straps) or slings,
for example stretcher handles or shield handles.
[0027] The armour system of the present invention preferably includes at least one strap
kit. Preferably, the strap kit is engageable with a plurality of different types of
armour component. The strap kit may be adjustable in size and/or configuration. The
strap may have one, two or more fixings for engaging armour components.
[0028] Shape, weight and size ― armour components which have a size and weight which allow them to be man portable
can be easily applied in a variety of roles. The weight may be in the range 3kg to
20kg, more preferably 5kg to 15 kg and most preferably 5kg to 12kg.
[0029] An armour component may be of a size so that it can be inserted into a conventional
form of portable equipment to provide a shield. For example, an armour component may
be installed into a brief case, suit carrier or other component which may be carried
around. This is particularly suitable for covert operations.
[0030] Flexibility ― some types of armour material have a certain amount of flexibility. This can allow
them to be flexed to conform with different shapes of surface, for example seat surface.
Flexing lines may be built in to the armour component to make flexing easier.
SEAT ARMOUR KIT
[0031] It is particularly preferred that the armour system comprises components which can
be engaged with a seat (for example a seat of a vehicle) to provide protection for
the occupant of the seat.
[0032] The armour components preferably comprise at least:
A seat base armour component,
A seat back armour component, and
At least one seat side armour component.
[0033] These armour components can, when fixed to a seat, provide the occupant with protection
from behind, from below and from at least one side. For example in a road vehicle
seat, the seat side component can be mounted on the side facing a vehicle door.
[0034] An additional seat side armour component may be provided to protect the other side
of the seat.
[0035] The seat base armour component may comprise a first part for resting on the sitting
part of the seat and a second component for resting in a position to protect the occupant's
legs. The first and second parts may be separate, integral or movably connected to
one another.
[0036] The seat base and seat back armour components may be integral. They may be connected
to one another at a fold line. They may each be formed from a flexible armour material.
[0037] The seat side armour component may comprise a first seat side component for protecting
an occupant's thigh and leg side and a second seat side armour component for protecting
an occupant's trunk.
[0038] A seat armour kit having these components can be employed for seat protection in
many different types of vehicle and aircraft and also, with the components disassembled
in many different roles.
VEHICLE ARMOUR KIT
[0039] An armour system which is adapted for providing armour protection for a vehicle may
comprise armour components selected from the following:
floor armour component;
seat base armour component;
leg armour component;
seat side armour component;
seat back armour component;
head rest armour component;
window fragmentation protection;
sun visor armour component;
window armour component;
neck rest armour component;
head protection plate component;
vehicle side protection armour component; and
rear seat protection armour component
[0040] The seat base armour component, leg armour component, seat side armour component
and seat back armour component may be as described above for the seat armour kit.
[0041] Preferred features of the abovementioned on the components are as follows:
Floor armour component ― preferably the floor armour component comprises an armour component for protection
against blast and fragmentation, for example from explosive devices. A conventional
blast and fragmentation blanket material may be used. The blanket material may be
constructed to a suitable size for fitting onto floor sections of vehicles. The floor
armour component may be covered in a hard wearing canvas. It may be engageable with
at least one seat armour component
Seat or seat back armour component ― this may comprise a protected seat cover or a structure for mounting on a seat
back, or both. Preferably, it is designed so that it does not interfere with movement
of the seat, for example the seat back or position. There may be separate designs
of seat armour component for front seats and rear seats. The seat or back armour component
may be configured to act selectively as a neck rest protector. A separate neck rest
protector may be provided to protect the neck area.
Leg or Body side armour component ― preferably, there is an armour component for mounting in the vehicle adjacent a
side of an occupant's body, for example adjacent the leg, trunk and/or thigh of an
occupant. The body side armour component may comprise a set of armour component parts,
which in use are mounted on one another, to the vehicle seat or to the vehicle door.
[0042] Leg side armour components are preferably interchangeable with body side armour components.
The leg or body side armour components may be interchangeably used for the left or
right side.
[0043] If suitable fixings are provided, these components may be placed in one of up to
eight different positions.
Window fragmentation protection ― a commercially available plastic film for adhesion to windows may be provided,
to arrest glass fragments in case of fracture.
Window armour component ― in order to provide uninterrupted vision, the window armour component may comprise
a mesh or grid material or a transparent material, for example a polymeric sheet such
as polycarbonate. A window armour component may be used which has a first position,
in which it is in a position in which it does not obstruct the window and a second
position in which it rests adjacent a window. Means may be provided for moving the
window armour component from the first position to the second position. For example,
a rapid reaction system may be provided for flipping the window armour component into
position either upon operation by an occupant of the vehicle or automatically in case
of danger.
Headrest armour component ― an armour component may be provided which can be mounted on the front or rear of
a headrest. The kit may comprise different sizes of headrest armour component, for
use in vehicles of different size or for different threat types.
Sun visor armour component ― an armour component may be mounted behind or in front of the flip down sun visor.
Rear seat protection armour component
[0044] A panel of size approximately equal to a vehicle rear seat size may be provided to
give protection from the rear. Preferably, it can also be used as a separate ballistic
shield. Preferably, fixings or straps are provided for mounting the rear seat armour
component in a variety of positions, for example including across the rear seat, suspended
between solid objects or connected to other armour components.
Vehicle Side protection armour component
[0045] At least one side protection armour component may be provided. It may be constructed
in a similar manner to the rear seat armour component and be provided with fixings
or straps in a similar way. Hinged fixings can be provided, for allowing the side
protection armour component to open with a vehicle door.
COVERT DESIGN
[0046] Typically, at least some of the armour components are designed so that they are not
recognisable as armour components.
[0047] The armour components may be stored in a first position in which they are not visible
and moved in case of danger to a second position in which they can protect an occupant.
[0048] Armour components may be covered in material resembling normal vehicle fittings.
In this way, the armour component may be made to look like conventional internal fittings
of a vehicle. For example, they may comprise conventional seat cover materials
FITTINGS
[0049] In order to allow armour components of the present invention to be fitted to a framework
such as a vehicle interior, they may comprise suitable fittings. The fittings may
be selected from:
a) adhesive fittings; armour components may comprise adhesive portions which will
stick to parts of the vehicle interior. Preferably, the fittings may be removed and
refitted if necessary.
b) touch and hold fastenings, for example VELCRO (RTM). This may be for engaging fabric
coverings of a seat, vehicle interior or another armour component.
c) mechanical fittings to the framework - for example; armour components may comprise
means for engaging mechanical fittings formed in a vehicle. For example, there may
be means for engaging with seat belt fittings.
d) adjustable grips or straps. These may for example allow an armour component to
fit a wide variety of different types of vehicle or vehicle structure. The armour
component may comprise at least one adjustable strap for passing around the vehicle
structure or a grip for gripping onto a vehicle structure or to other armour components.
[0050] The armour components of the invention may be configured for mounting in the passenger
or goods carrying space of a vehicle for example, in the driving compartment, passenger
compartment, boot, van body or other internal space of the vehicle.
SECOND ASPECT OF THE INVENTION
[0051] The vehicle seat armour component of the second aspect of the invention may have
any of the features set out above, particularly relating to the armour material, other
roles, configuration for other roles and covert design.
[0052] The vehicle seat armour component of the second aspect of the invention is suitably
a rigid rear seat armour component or a front seat armour component. In order to allow
it to act as a stretcher, it preferably comprises at least two and preferably at least
four handles.
THIRD ASPECT OF THE INVENTION
[0053] The third aspect of the invention provides an armour component for use in a vehicle
which armour component is movable from a first position in which it does not obscure
a part of the view from the vehicle to a second position in which it can protect an
occupant.
[0054] It may form a part of a vehicle armour system according to the invention.
[0055] It may be suitably mounted on the rear seat of a passenger carrying vehicle.
[0056] The armour component preferably comprises armour material as set out above, being
preferably able to withstand a specified calibre of small arms fire, for example NATO
standard 7.62mm x 51mm, 7.62 x 39mm AK47, 9mm parabellum, 5.56mm sS109 or any other
selected small arms ammunition.
[0057] It may have any suitable size, being preferably of a size sufficient to extend across
the rear windscreen of conventional designs of passenger carrying vehicle. It may
have a width in the range 50cm-150cm, more preferably 80 -120 cm.
[0058] The armour component may be mounted in a frame. It may be slidably mounted in the
frame between the two positions. Means may be provide for moving the armour component.
For example, a mechanical spring, hydraulic or pneumatic pressure system or pyrotechnic
system (for example of the type used to operate vehicle air bags) may be used. Means
may be provide for urging the armour component from its first to its second position,
a latch being provide to prevent the armour component moving until the latch is released.
The latch may be operable by mechanical means, for example a ripcord or string, or
electronically. A safety device for the latch may be provided to prevent accidental
operation of the latch when there is no threat.
[0059] The present invention will be further described by way of example only with reference
to the accompanying drawings, in which:
BRIEF DESCRIPTION OF THE DRAWINGS
[0060]
Figure 1 is a schematic view of an armour system comprising a seat armour kit.
Figure 2 is a schematic view of the seat armour component laid out
Figure 3 is a schematic view of the seat armour component folded.
Figure 4 is a schematic cross sections through a conventional passenger carrying vehicle
comprising armoured components of the system of the invention.
Figure 5 is a sketch isometric view of a headrest protector in place.
Figure 6 is a sketch isometric view of a combined front seat back armour component
and seat armour component.
Figure 7 is a sketch view of a first embodiment of rear seat armour component.
Figure 8 is a sketch view of a suit carrier enclosing an armour component according
to the present invention.
Figure 9 is a sketch view of a rear window flip-up armour component.
Figure 10 is a sketch view of a second embodiment of rear seat armour component.
DETAILED DESCRIPTION OF THE DRAWINGS
[0061] Figure 1 shows a schematic view of an armour system comprising a seat armour kit
1.
[0062] It comprises an integral body 2 which comprises a leg armour component, seat base
armour component and seat back armour component, joined to one another at folds lines.
The body 2 is formed of a relatively flexible blast resistant armour blanket material
(described further below). The body 2 can be fled to fit a wide variety of different
seat designs in a variety of different locations for example in a building or in a
vehicle.
[0063] The kit 1 further comprises an additional seat back armour component 3 made of a
relatively stiff ballistic armour material (described further below), to provide protection
against splinter and bullets.
[0064] There is a seat side armour component formed of a body side armour unit 4 and a thigh
and leg side armour unit 5.
[0065] These components are each provided with a plurality of clips and straps to allow
them to be placed in up to eight different positions.
[0066] The body 2 can be fixed to a seat by straps 7. Straps 7 are configured to be of variable
length so that they can be fixed around different types of seat. The body 2 is connectable
by variable buckled straps 8 to the additional seat back armour component 3 so that
they enclose and are fixed to a seat back. The body side armour unit 4 and thigh and
leg side armour unit 5 are each fixable by engagement of touch and hold fastenings,
such as VELCRO (RTM) for engaging fabric covers of the seat or the body 2.
[0067] Finally, the body 2 is provided with handles 6. These allow the body 2 to be lifted
at six points so that the body can be used as a stretcher, as shown in figure 2.
[0068] The body 2 can be folded over completely as shown in figure 3. This can double the
local armour thickness, providing additional armour protection.
[0069] Where there is sufficient space under a seat, the additional armour component may
be selectively fixed under the seat to the seat base portion of the body 2. This is
particularly useful for example in helicopters where fire may be received from below.
[0070] Figure 4 shows a sketch cross-section through a conventional passenger carrying road
vehicle 9. Conventional details, such as the structure, the engine and the controls
are not shown, as they are completely conventional in design. It can be seen that
the vehicle comprises a driver position 10, a rear seat position 11 and a boot 12.
Vehicle 9 comprises a pair of front seats, of which one is visible. It comprises a
seat portion 13 and a back portion 14 together with a headrest. The rear seat 15 comprises
a continuous sea, continuous seat back and head rests of which one 16 is visible.
[0071] The armour system of the present invention, when used in armouring a vehicle comprises
the following elements, which have been placed in position.
[0072] There is a floor armour component comprising a blast and fragmentation protection
blanket 17. This comprises a rectangular sheet of blast or fragmentation resistant
material whose specification will be described further below. The sheet is stretched
between the front portion of the foot well and a space underneath the front seats.
Similarly, floor armour components comprising blankets 18 and 19 are placed in position
in the rear foot well and underneath the rear seat.
[0073] The front seat comprises a seat armour kit as shown in figures 1 to 3. On top of
the front seat, there is a front seat armour component comprising the body 2, together
with the additional seat back armour component 3 located on the rear of the front
seat. The body side armour unit 4 and a thigh and leg side armour unit 5 can be seen
in position next to the front seat. There is also a headrest armour component 20.
[0074] A rear seat armour component 23 is mounted in contact with the rear seat back.
[0075] A sun visor protector 22 is placed in contact with a sun visor.
[0076] The armour specifications of the armour components will be described further below.
[0077] Window armour components comprising oblong panels 21 of transparent or grid material
are provided, stuck to the windows by mechanical fixings in addition to conventional
suction fixings.
[0078] Further armour components may be included, which are not shown, for example a headrest
protector on the headrest 16 of the rear seat 15, leg and thigh protectors adjacent
the rear seat 15 and anti splinter film of a conventional type applied to the windows
of the vehicle.
[0079] The vehicle 9 could also be provided with a smaller number of armour components selected
from the kit of armour components of the system of the present invention according
to the threat to be encountered. It should be noted that each of the armour components
conforms very closely to the inside structures of the vehicle. Further, the armour
components may be provided with covers which resemble conventional vehicle furniture,
so that the presence of the armour components is not readily detectable.
[0080] The specifications of the armour components are as follows:
The armour blankets 17,18 and 19 may each provide fragmentation and blast protection
up and including the level of V50 > 600m/s for 1.1-gram FSP (STANAG 2920). They may
be composed of any suitable material, for example, aramid fibres woven and stitched
together with a water resistant PVC cover. Each blanket 17,18, and 19 may have a square
or rectangular shape, having a length in the range 40-100cm and the width in the range
30-70cm.
[0081] Armour components may each comprise suitable types of ballistic armour, for example
aramid woven fibres stitched together. They may be coated with a water resistant covering
or comfort in use. Extra covers may be selected from foam covering for comfort, canvas
to provide a hardwearing exterior and covers resembling conventional vehicle interior
finish.
[0082] A seat and leg armour component is most likely to encounter blast and fragmentation
ammunitions and accordingly should be able to resist them. For example, it may provide
protection up to and including the level of V50 > 500ms for 1.1 gm FSP according to
STANAG 2920. This material may be used to form the body 2 of figure 1.
[0083] Armour components which are located higher up in the vehicle suitably provide small
arms ballistic protection up to and including 7.62 X 51mm NATO ball and AK47 7.62
x 39fmj msc. This is particularly the case for additional seat back armour component
3, body side armour unit 4 and thigh and leg side armour unit 5, head rest armour
component, sun visor armour component, rear seat armour component. They are suitably
constructed from Dyneema (trade mark). These armour components may be further provided
with adjustable straps for connection to other armour components and/or to vehicle
furniture. They may be covered with padded commercial seat covers.
[0084] Suitable component sizes are as follows:
body side armour unit,― 15cm x 40 cm (1.4 kg)
thigh and leg side armour unit -44cm x 35 cm (2.5 kg)
additional seat back armour component 40 x 45 cm (4.0 kg)
Head rest protector ― 22cm x 13 cms (0.87 kg)
Sun visor protector ― 22cm x 13cm (0.87 kg)
Rear seat protector ― 100 cm x 50 cm (11.5 kg)
Seat base armour ― 54 x 77mm
Head rest protector ― 22 x 30mm
Neck rest protector ― 22 x 13mm
[0085] All of these items are designed to be very rapidly fitted into the vehicle, taking
from two -20 minutes and preferably from 5-15 minutes to fit.
[0086] Additional features of the armour components will be described further below.
[0087] Anti splinter film of commercially available type may be used and applied to vehicle
windows to hold glass splinter in place in case of attack or in case occupants have
to return fire through windows of the vehicle.
[0088] A window armour component may comprise a mesh or a transparent component, for example
a 10mm thick polycarbonate sheet mounted in conventional mesh sunshade.
[0089] The window armour component may include conventional windows suckers for fitting,
though additional mechanical fittings may be required to support the additional weight
of the armour component.
[0090] Figure 5 shows a sketch of the headrest protecting position. It comprises a pair
of adjustable webbing straps 23 of conventional design which will allow a single design
of head rest protector 15 to be attached to many conventional head rests. When in
place, a covering material may be applied so that the head rest protector is not visible
[0091] Figure 6 shows the additional seat armour component 3 which is connected by adjustable
straps 8 to a front seat armour component 2. It can be seen that a pocket 25 can be
integrally formed with a covering material of the armour component for storage of
weapons, first aid kit etc.
[0092] Figure 7 is a sketch view showing a first embodiment of rear seat armour component
23. It comprises straps 26 of various designs for allowing it to be fitted to a wide
of range of commercial car seat designs. For example, it may be fitted to the front
of a seat or, particularly in the case of trucks or 4 by 4 vehicles, to the rear of
the seats.
[0093] The armour component is also provided with carrying handles 27 which allow the component
to be used as a stretcher.
[0094] Figure 8 shows how an armour component, for example the rear seat armour component
or folded body 2 can be held within a conventional suit carrier 29. In this way it
can be readily carried around to act as a ballistic shield but is not immediately
apparent to an outside observer,
[0095] Figure 9 shows the rear window flip armour component. It comprises a steel frame
30 which has a hollow interior within which an armour component 31 is slidably mounted.
The armour component 31 is shown in a retracted position in which it does not project
very far from the frame 30. In this position, it can be placed on the rear seat of
a vehicle so that it does not obscure vision through the rear windscreen. A pair of
pneumatic cylinders 32 are provided, each being configured to propel the armour component
31 from the stored position shown in figure 6 to an extended position in which it
extends across the rear window. A cylinder 33 comprising a reservoir of compressed
gas is provided. Compressed gas form the cylinder acts on pistons in the cylinders
to urge them upwards. A latch 34 is provided which, in a latching position, prevents
the armour component being driven upwards. The latch may be released, for example
by a string, whereupon the armour component is very rapidly pushed by the compressed
gas acting on pistons on the cylinders to an extended position in which it rest adjacent
a rear window of a vehicle, to protect occupants from attack from the rear. The distance
by which the armour component projects in its extended position may be variable. The
armour component is preferably driven so that it contacts the vehicle roof and jams
against it so that the whole structure is firmly held even when impacted by munitions.
[0096] The flip up rear window protector 22 further includes straps 35 for allowing the
apparatus to be fitted to a rear bulkhead or rear seats of a vehicle.
[0097] The armour component 31 is preferably of dimensions 91cm by 41cm and preferably weighs
around 13kg.
[0098] Preferably, armour components according to the present invention are configured so
that they do not obscure vision or the opportunity to fire through the windows of
the vehicle. For example the window armour component may be removed if necessary to
open the field of vision or fire.
[0099] The armour components shown in the vehicle 9 of figure 4 are preferably supplied
in the form of a kit of parts.
[0100] Figure 10 shows a second embodiment of rear seat armour component 36. It is similar
to the one shown in Figure 7 and comprises similar straps 26 and carrying handles
27 which allow the component to be used as a stretcher. There are additional clips
37 for engaging parts of a vehicle, straps or other armour components (including other
rear seat armour components 36), and a detachable carrying bar 38, which is enageable
with additional handles 39.
[0101] The present invention has been described above purely by way of example and modifications
can be made within the spirit of invention, which extends to equivalents of the features
described. The invention also consists in any individual features described or implicit
herein or shown or implicit in the drawings or any combination of any such features
or any generalisation of any such features or combination.