(19)

(11)

EP 1 656 486 A1

(12)

(43) Date of publication: 17.05.2006 Bulletin 2006/20 (21) Application number: 04743657.1 (22) Date of filing: 06.08.2004

(51) International Patent Classification (IPC):  E04H 3/28(1968.09) (86) International application number: PCT/GB2004/003367 (87) International publication number: WO 2005/017286 (24.02.2005 Gazette 2005/08)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR (30) Priority: 09.08.2003 GB 0318789 (71) Applicant: Dickson, Dudley Franklyn Chelmsley Wood, Birmingham B37 7JL (GB)	(72) Inventor: Dickson, Dudley Franklyn Chelmsley Wood, Birmingham B37 7JL (GB) (74) Representative: Atkinson, Jennifer et al Barker Brettell 138 Hagley Road Edgbaston Birmingham B16 9PW Birmingham B16 9PW (GB)