EP0572260A1 - Closing edge faces of multi-layer panels - Google Patents

Closing edge faces of multi-layer panels Download PDF

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Publication number
EP0572260A1
EP0572260A1 EP93304140A EP93304140A EP0572260A1 EP 0572260 A1 EP0572260 A1 EP 0572260A1 EP 93304140 A EP93304140 A EP 93304140A EP 93304140 A EP93304140 A EP 93304140A EP 0572260 A1 EP0572260 A1 EP 0572260A1
Authority
EP
European Patent Office
Prior art keywords
strip
closure
filter
closure strip
filter strip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP93304140A
Other languages
German (de)
French (fr)
Inventor
Michael John Newey
Charles Damer Dawson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Newdawn & Sun Ltd
Original Assignee
Newdawn & Sun Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Newdawn & Sun Ltd filed Critical Newdawn & Sun Ltd
Publication of EP0572260A1 publication Critical patent/EP0572260A1/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/54—Slab-like translucent elements
    • E04C2/543—Hollow multi-walled panels with integrated webs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/02—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant
    • E04D3/06—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant of glass or other translucent material; Fixing means therefor

Definitions

  • This invention relates to a method and apparatus for closing edge faces of multi-layer panel structures, particularly of the kind comprising at least two sheet-form layers held apart by spacers to form cavities between the layers.
  • Multi-layer structures of the kind set forth comprising two or more layers of synthetic materials such as polycarbonates, being used particularly for the roofs of glazed structures such as conservatories and greenhouses.
  • Edge faces of the panels need closing for protection from the weather, and to prevent the ingress of dust into intra-layer cavities whilst allowing the passage of air and water vapour. It is known to close the edge faces by means of metal or plastics closures which are easily applied, and removed, and are substantially weatherproof, but not sufficiently dustproof. Alternatively, it is known for the faces to be closed by a dustproof but water vapour permeable material, partially covered and retained on the multi-layer structure by an aluminium foil beaten round an edge portion of the panel. This latter closure has the disadvantage that it is time-consuming to apply satisfactorily, and after a time the foil tends to peel away, which is both unsightly and reduces the efficiency of the closure.
  • a method of closing an edge face of a multi-layer panel structure comprises applying an air-permeable filter strip along the edge face to seal against entry of dust between layers of the structure, characterised in that the filter strip is enclosed by a preformed weatherproof closure strip which embraces and grips an edge portion of the structure.
  • the closure strip is preferably of a moulded plastics material.
  • the filter strip may be of a non-woven fabric. It may be treated with anti-fungal and/or anti-algal agents.
  • An important function of the closure strip is to weatherproof the closure, and it may be important that it completely encloses the filter strip in use.
  • the filter strip and closure strip may simply be in abutment with one another, or they may be bonded to one another by adhesive, or held together by other suitable methods or types of fastening.
  • the closure strip preferably has one or more abutment portions for engaging the filter strip, and resilient means for gripping the edge portion of the panel to retain the filter strip in position on the panel edge face.
  • the closure strip can comprise two spaced arm portions connected by a base portion.
  • the abutment portions are preferably spaced from the base portion so as to define a ventilation duct which is in communication with the exterior of the structure.
  • the abutment portions are in the form of opposing ribs extending from the arms. There may be a space between adjacent ends of the opposing ribs.
  • the duct defined within the closure strip is preferably continuous and open ended so as to link the interior of the panel structure with the outside via the filter strip.
  • One or more of the arm portions of the closure strip may form one or more channels in which a sealant or adhesive material may be provided to seal between the arm portion and the surface of the panel structure.
  • the closure strip may be formed as a continuous extrusion which can be cut to the length required for use.
  • the filter strip may also be provided in continuous lengths for cutting to the length required.
  • the two components may be pre-assembled in appropriate lengths prior to being applied to a panel edge face.
  • a preformed plastics closure strip in combination with an air-permeable filter strip which can be applied along the edge face to seal against entry of dust between layers of the structure, the closure strip being arranged to embrace and grip an edge portion of the structure in enclosing the filter strip applied to the structure.
  • a multi-layer panel structure 1 comprises three flat sheets 2,3,4 of polycarbonate which are separated by spacers (not shown) to form cavities 5,6.
  • the cavities present panel edge openings 7,8 which allow access to the interior of the structure 1 through an edge face of the panel. These openings 7,8 are closed, to prevent dust and other undesirable materials entering the cavities, by means of a closure 9.
  • the closure 9 comprises a first component in the form of a filter strip 10, which filters air entering the cavities, and a second component in the form of a weatherproof closure strip 11 which maintains the filter 10 in position to close the openings 7,8.
  • the filter 10 comprises a non-woven air-permeable fabric which permits the relatively free movement of air and water vapour through it, but prevents the entry of dust, insects and other undesirable bodies.
  • the material is treated with anti-fungal and anti-algal agents to prevent their entry and growth within the interior of the structure and on the filter itself.
  • the closure strip 11 is formed as a plastics extrusion, preferably of PVC, and comprises projecting arm portions 12,13 connected by a closure part having a base portion 14 and abutment portions 15,16.
  • the spaced arm portions 12,13 resiliently grip outer surfaces of outer sheets 2,3 of the structure, so as to retain the closure 9 on the structure 1.
  • the abutment portions engage the filter strip 10. They project inwards from the arm portions 12,13, respectively, as mutually opposing ribs which are parallel to but spaced from the base portion 14 so as to define a ventilation duct 17 which runs the length of the closure strip.
  • There is a gap 18 between the ends of the abutment portions 15,16 which exposes a portion of the filter 10 to the duct 17. In this way the interior of the structure 1 (comprising the two cavities 5,6) is connected via the filter 10 and gap 18 to the duct 17, which is open at its ends to the exterior of the structure.
  • the one of the arms 13 which is on an upper side of the structure when in use is provided with a kink 19 defining an internal channel 20 which runs the length of the closure strip.
  • An adhesive or other sealant material, such as a silicon mastic, is introduced into the channel 20 to enhance the integrity of the closure.
  • the base portion has a lip 21, extending beyond the lower arm 12 to direct water away from the lower arm.
  • the filter 10 is attached to the abutment portions 15,16 by adhesive; in other constructions it could be unattached but trapped between the closure strip and the edge face of the panel.
  • the filter strip 10 and closure strip 11 are cut to the required length from stock material and the filter is attached to the abutment portions of the closure strip using an adhesive.
  • the assembled closure 9, with adhesive or sealant provided in the channel 20, if required, is then pushed on to embrace the edge portion of the panel structure until the sheets abut the filter 10.
  • holes could be provided in the base portion 14 or in the lower arm 12 of the closure strip 11, to connect the duct 17 more directly with the exterior if a higher potential rate of vapour or air transmission is required.
  • a hole in the arm 12 close to the lip 21 will be protected from any rainfall or other direct water contact.
  • the filter strip 10 may be arranged, in its position of use, to be spaced from the openings 7,8.
  • the resilient portion of the closure strip 11 may be provided by the base portion 14, rather than by the arms 12,13 themselves.
  • the filter 10 may first be applied to the edge face of the panel structure, for example being bonded by adhesive, and the closure strip may then be applied as described above.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Ventilation (AREA)

Abstract

A multi-layer panel structure (1) comprising three spaced sheets (2,3,4) of polycarbonate material is closed along an edge face by means of a closure (9) comprising an air-permeable filter strip (10) and a weatherproof closure strip (11). The filter strip (10) covers the edge face of the structure and prevents the ingress of dust and other solid matter into cavities (5,6) between the spaced sheets. It is enclosed by the closure strip (11), which is formed as a plastics extrusion and comprises upper and lower arm portions (12,13) which are joined by a base portion (14) and grip an edge portion of the structure. A ventilation duct (17) is formed between the filter strip and the base portion of the closure strip. The filter strip may be bonded to the closure strip, by means of an adhesive, prior to application of the closure (9) to the panel edge.

Description

  • This invention relates to a method and apparatus for closing edge faces of multi-layer panel structures, particularly of the kind comprising at least two sheet-form layers held apart by spacers to form cavities between the layers.
  • Multi-layer structures of the kind set forth are known comprising two or more layers of synthetic materials such as polycarbonates, being used particularly for the roofs of glazed structures such as conservatories and greenhouses.
  • Edge faces of the panels need closing for protection from the weather, and to prevent the ingress of dust into intra-layer cavities whilst allowing the passage of air and water vapour. It is known to close the edge faces by means of metal or plastics closures which are easily applied, and removed, and are substantially weatherproof, but not sufficiently dustproof. Alternatively, it is known for the faces to be closed by a dustproof but water vapour permeable material, partially covered and retained on the multi-layer structure by an aluminium foil beaten round an edge portion of the panel. This latter closure has the disadvantage that it is time-consuming to apply satisfactorily, and after a time the foil tends to peel away, which is both unsightly and reduces the efficiency of the closure.
  • According to a first aspect of the present invention, a method of closing an edge face of a multi-layer panel structure comprises applying an air-permeable filter strip along the edge face to seal against entry of dust between layers of the structure, characterised in that the filter strip is enclosed by a preformed weatherproof closure strip which embraces and grips an edge portion of the structure.
  • This has the advantage of providing a substantially dustproof and water vapour permeable material to close the panel edge, the material being well protected by the closure strip which can be easy to apply and remove. The closure strip is preferably of a moulded plastics material.
  • The filter strip may be of a non-woven fabric. It may be treated with anti-fungal and/or anti-algal agents. An important function of the closure strip is to weatherproof the closure, and it may be important that it completely encloses the filter strip in use.
  • The filter strip and closure strip may simply be in abutment with one another, or they may be bonded to one another by adhesive, or held together by other suitable methods or types of fastening.
  • The closure strip preferably has one or more abutment portions for engaging the filter strip, and resilient means for gripping the edge portion of the panel to retain the filter strip in position on the panel edge face. Conveniently, the closure strip can comprise two spaced arm portions connected by a base portion. The abutment portions are preferably spaced from the base portion so as to define a ventilation duct which is in communication with the exterior of the structure. Preferably the abutment portions are in the form of opposing ribs extending from the arms. There may be a space between adjacent ends of the opposing ribs.
  • The duct defined within the closure strip is preferably continuous and open ended so as to link the interior of the panel structure with the outside via the filter strip.
  • One or more of the arm portions of the closure strip may form one or more channels in which a sealant or adhesive material may be provided to seal between the arm portion and the surface of the panel structure.
  • The closure strip may be formed as a continuous extrusion which can be cut to the length required for use. The filter strip may also be provided in continuous lengths for cutting to the length required. The two components may be pre-assembled in appropriate lengths prior to being applied to a panel edge face.
  • According to a second aspect of the present invention there is provided, for use in closing an edge face of a multi-layer panel structure, a preformed plastics closure strip in combination with an air-permeable filter strip which can be applied along the edge face to seal against entry of dust between layers of the structure, the closure strip being arranged to embrace and grip an edge portion of the structure in enclosing the filter strip applied to the structure.
  • One example of performance of the invention will now be described with reference to the accompanying drawing of which the single Figure is a cross-section through an edge portion of a multi-layer panel structure whch has an edge closure applied.
  • A multi-layer panel structure 1 comprises three flat sheets 2,3,4 of polycarbonate which are separated by spacers (not shown) to form cavities 5,6. The cavities present panel edge openings 7,8 which allow access to the interior of the structure 1 through an edge face of the panel. These openings 7,8 are closed, to prevent dust and other undesirable materials entering the cavities, by means of a closure 9.
  • The closure 9 comprises a first component in the form of a filter strip 10, which filters air entering the cavities, and a second component in the form of a weatherproof closure strip 11 which maintains the filter 10 in position to close the openings 7,8.
  • The filter 10 comprises a non-woven air-permeable fabric which permits the relatively free movement of air and water vapour through it, but prevents the entry of dust, insects and other undesirable bodies. The material is treated with anti-fungal and anti-algal agents to prevent their entry and growth within the interior of the structure and on the filter itself.
  • The closure strip 11 is formed as a plastics extrusion, preferably of PVC, and comprises projecting arm portions 12,13 connected by a closure part having a base portion 14 and abutment portions 15,16. The spaced arm portions 12,13 resiliently grip outer surfaces of outer sheets 2,3 of the structure, so as to retain the closure 9 on the structure 1. The abutment portions engage the filter strip 10. They project inwards from the arm portions 12,13, respectively, as mutually opposing ribs which are parallel to but spaced from the base portion 14 so as to define a ventilation duct 17 which runs the length of the closure strip. There is a gap 18 between the ends of the abutment portions 15,16 which exposes a portion of the filter 10 to the duct 17. In this way the interior of the structure 1 (comprising the two cavities 5,6) is connected via the filter 10 and gap 18 to the duct 17, which is open at its ends to the exterior of the structure.
  • The one of the arms 13 which is on an upper side of the structure when in use is provided with a kink 19 defining an internal channel 20 which runs the length of the closure strip. An adhesive or other sealant material, such as a silicon mastic, is introduced into the channel 20 to enhance the integrity of the closure. The base portion has a lip 21, extending beyond the lower arm 12 to direct water away from the lower arm.
  • The filter 10 is attached to the abutment portions 15,16 by adhesive; in other constructions it could be unattached but trapped between the closure strip and the edge face of the panel.
  • During assembly the filter strip 10 and closure strip 11 are cut to the required length from stock material and the filter is attached to the abutment portions of the closure strip using an adhesive. The assembled closure 9, with adhesive or sealant provided in the channel 20, if required, is then pushed on to embrace the edge portion of the panel structure until the sheets abut the filter 10.
  • In a modification (not shown) holes could be provided in the base portion 14 or in the lower arm 12 of the closure strip 11, to connect the duct 17 more directly with the exterior if a higher potential rate of vapour or air transmission is required. A hole in the arm 12 close to the lip 21 will be protected from any rainfall or other direct water contact.
  • In a further modification (not shown) the filter strip 10 may be arranged, in its position of use, to be spaced from the openings 7,8. In a further modification (not shown) the resilient portion of the closure strip 11 may be provided by the base portion 14, rather than by the arms 12,13 themselves.
  • In an alternative method of assembly, the filter 10 may first be applied to the edge face of the panel structure, for example being bonded by adhesive, and the closure strip may then be applied as described above.

Claims (10)

  1. A method of closing an edge face of a multi-layer panel structure (1) comprising applying an air-permeable filter strip (10) along the edge face to seal against entry of dust between layers (2,3,4) of the structure, characterised in that the filter strip (10) is enclosed by a preformed weatherproof closure strip (11) which embraces and grips an edge portion of the structure.
  2. A method according to claim 1 characterised in that the closure strip (11) comprises two spaced arm portions (12,13) connected by a base portion (14), the arm portions gripping the edge portion of the structure.
  3. A method according to claim 2 characterised in that the closure strip (11) is provided with abutment portions (15,16) which abut the filter strip (10).
  4. A method according to claim 3 characterised in that the abutment portions (15,16) are provided by mutually opposing ribs projecting from the arm portions (12,13).
  5. A method according to claim 3 or claim 4 characterised in that the abutment portions (15,16) are spaced from the base portion (14), the abutment portions and base portions together defining a ventilation duct (17) which communicates with the exterior of the structure.
  6. A method according to any of claims 2 to 5 characterised in that at least one of the arm portions (13) forms a channel (20) into which sealing material can be introduced to seal between the arm portion and the panel structure (1).
  7. A method according to any preceding claim characterised in that the filter strip is of a non-woven material and is treated with anti-fungal and/or anti-algal agents.
  8. For use in closing an edge face of a multi-layer panel structure (1), a preformed plastics closure strip (11) in combination with an air-permeable filter strip (10) which can be applied along the edge face to seal against entry of dust between layers (2,3,4) of the structure, the closure strip being arranged to embrace and grip an edge portion of the structure in enclosing the filter strip applied to the structure.
  9. A combination according to claim 8 in which the closure strip (11) forms a ventilation duct (17) in communication with the filter strip (10).
  10. A combination according to either of claims 8 and 9 in which the filter strip (10) is bonded to the closure strip.
EP93304140A 1992-05-28 1993-05-27 Closing edge faces of multi-layer panels Withdrawn EP0572260A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9211266 1992-05-28
GB929211266A GB9211266D0 (en) 1992-05-28 1992-05-28 Apparatus and method for closing open ends in multi-wall structures

Publications (1)

Publication Number Publication Date
EP0572260A1 true EP0572260A1 (en) 1993-12-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP93304140A Withdrawn EP0572260A1 (en) 1992-05-28 1993-05-27 Closing edge faces of multi-layer panels

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EP (1) EP0572260A1 (en)
GB (2) GB9211266D0 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0644305A1 (en) * 1993-09-18 1995-03-22 Ultraframe Plc Installation of roofing panels
DE29506690U1 (en) * 1995-04-20 1995-06-08 Schnieder, Werner, 32120 Hiddenhausen Frame or connecting profile for a glass pane
DE29714972U1 (en) * 1997-08-21 1997-10-23 Arnold GmbH, 61381 Friedrichsdorf Water deflector, especially rainwater deflector
EP0863272A2 (en) * 1997-03-05 1998-09-09 Ultraframe (Uk) Limited Conservatory Roofs
WO2000055447A1 (en) * 1999-03-17 2000-09-21 Ultraframe (Uk) Limited Installation of roofing panels
EP2327844A3 (en) * 2009-10-15 2012-11-07 Harry Georges Rhodes End clip
WO2013052295A1 (en) * 2011-10-07 2013-04-11 Sabic Innovative Plastics Ip B.V. A multiwall sheet, methods of making, and articles comprising the multiwall sheet
EP2855792A1 (en) * 2012-05-23 2015-04-08 Multifoil B.V. Multi-walled plate material and end profile as well as filter tape therefore
IT201700096331A1 (en) * 2017-08-25 2019-02-25 Iscom S P A REINFORCEMENT SYSTEM FOR A PANEL THAT CAN BE USED TO COVER BUILDINGS

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9425858D0 (en) * 1994-12-21 1995-02-22 Newdawn & Sun Ltd Closure for multi-layer panel
GB2312916B (en) * 1996-05-08 1999-12-15 Allport Brian Gripping member for a glazing sheet
IE20000862A1 (en) * 2000-10-26 2002-05-29 Hannah S Gray A roof including a glazing panel
US7392622B2 (en) 2002-10-22 2008-07-01 Park Lane Conservatories Limited Conservatory roof with a soffit system
US7246469B2 (en) 2002-12-16 2007-07-24 Park Lane Conservatories Ltd. Multi-piece eaves beam for preassembled glazed roof system
US7191566B2 (en) 2003-02-25 2007-03-20 Park Lane Conservatories Ltd. Eaves beam with internal drainage
US7392623B2 (en) 2004-02-03 2008-07-01 Park Lane Conservatories Ltd. Eaves beam with framing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052188A1 (en) * 1980-11-15 1982-05-26 Röhm Gmbh Profiled cover-strips for cavity panels
DE8617671U1 (en) * 1986-07-02 1986-08-14 Schuster, Hans, 31171 Nordstemmen Closing strip for twin-wall sheets
EP0376386A1 (en) * 1988-12-29 1990-07-04 Multifoil B.V. Method for the sealing of the openings in the surface of flat, layered synthetic material and foil for this purpose
DE9108651U1 (en) * 1991-07-13 1991-11-21 August Mink KG, 7320 Göppingen Brush strip for sliding onto a carrier profile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052188A1 (en) * 1980-11-15 1982-05-26 Röhm Gmbh Profiled cover-strips for cavity panels
DE8617671U1 (en) * 1986-07-02 1986-08-14 Schuster, Hans, 31171 Nordstemmen Closing strip for twin-wall sheets
EP0376386A1 (en) * 1988-12-29 1990-07-04 Multifoil B.V. Method for the sealing of the openings in the surface of flat, layered synthetic material and foil for this purpose
DE9108651U1 (en) * 1991-07-13 1991-11-21 August Mink KG, 7320 Göppingen Brush strip for sliding onto a carrier profile

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0644305A1 (en) * 1993-09-18 1995-03-22 Ultraframe Plc Installation of roofing panels
EP0790368A1 (en) * 1993-09-18 1997-08-20 Ultraframe Plc Installation of roofing panels
DE29506690U1 (en) * 1995-04-20 1995-06-08 Schnieder, Werner, 32120 Hiddenhausen Frame or connecting profile for a glass pane
EP0863272A2 (en) * 1997-03-05 1998-09-09 Ultraframe (Uk) Limited Conservatory Roofs
EP0863272A3 (en) * 1997-03-05 1999-09-01 Ultraframe (Uk) Limited Conservatory Roofs
DE29714972U1 (en) * 1997-08-21 1997-10-23 Arnold GmbH, 61381 Friedrichsdorf Water deflector, especially rainwater deflector
WO2000055447A1 (en) * 1999-03-17 2000-09-21 Ultraframe (Uk) Limited Installation of roofing panels
EP2327844A3 (en) * 2009-10-15 2012-11-07 Harry Georges Rhodes End clip
WO2013052295A1 (en) * 2011-10-07 2013-04-11 Sabic Innovative Plastics Ip B.V. A multiwall sheet, methods of making, and articles comprising the multiwall sheet
CN103857858A (en) * 2011-10-07 2014-06-11 沙特基础创新塑料Ip私人有限责任公司 A multiwall sheet, methods of making, and articles comprising the multiwall sheet
CN103857858B (en) * 2011-10-07 2016-09-21 沙特基础全球技术有限公司 Multi-layer sheet, manufacture method and include the goods of multi-layer sheet
US10011991B2 (en) 2011-10-07 2018-07-03 Sabic Global Technologies B.V. Multiwall sheet, methods of making, and articles comprising the multiwall sheet
EP2855792A1 (en) * 2012-05-23 2015-04-08 Multifoil B.V. Multi-walled plate material and end profile as well as filter tape therefore
EP2855792B1 (en) * 2012-05-23 2017-08-23 Multifoil B.V. Multi-walled plate material and end profile therefore
IT201700096331A1 (en) * 2017-08-25 2019-02-25 Iscom S P A REINFORCEMENT SYSTEM FOR A PANEL THAT CAN BE USED TO COVER BUILDINGS

Also Published As

Publication number Publication date
GB9211266D0 (en) 1992-07-15
GB2267298A (en) 1993-12-01
GB2267298B (en) 1996-02-28
GB9310936D0 (en) 1993-07-14

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