(19)

(11)

EP 1 055 036 A1

(12)

(43) Date of publication: 29.11.2000 Bulletin 2000/48 (21) Application number: 99904984.4 (22) Date of filing: 08.02.1999

(51) International Patent Classification (IPC)7: E04B 1/348 (86) International application number: PCT/GB9900/393 (87) International publication number: WO 9940/267 (12.08.1999 Gazette 1999/32)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 09.02.1998 GB 9802753 (71) Applicant: Ayrshire Metal Productspublic limited company IrvineAyrshire KA12 8PHScotland (GB)	(72) Inventor: COLVER, Robert, John Barton-Under-NeedwoodStaffordshire DE13 (GB) (74) Representative: Findlay, Alice Rosemary et al Lloyd Wise, Tregear & Co.,Commonwealth House,1-19 New Oxford Street London WC1A 1LW London WC1A 1LW (GB)