(19)

(11)

EP 1 558 820 A1

(12)

(43) Date of publication: 03.08.2005 Bulletin 2005/31 (21) Application number: 03775533.7 (22) Date of filing: 10.11.2003

(51) International Patent Classification (IPC)7: E03C 1/29 (86) International application number: PCT/GB2003/004890 (87) International publication number: WO 2004/042155 (21.05.2004 Gazette 2004/21)

(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 PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 08.11.2002 GB 0226069 (71) Applicant: Mcalpine & Co Ltd. Hillington,Glasgow G52 4LF (GB)	(72) Inventor: MCALPINE, James, Edward Paisley PA2 9LA (GB) (74) Representative: Shanks, Andrew et al Marks & Clerk Scotland19 Royal Exchange Square Glasgow G1 3AE Glasgow G1 3AE (GB)