(19)

(11)

EP 1 421 233 A2

(12)

(88) Date of publication A3: 01.05.2003 (43) Date of publication: 26.05.2004 Bulletin 2004/22 (21) Application number: 02749083.8 (22) Date of filing: 29.07.2002

(51) International Patent Classification (IPC)7: D06F 1/00 (86) International application number: PCT/GB2002/003480 (87) International publication number: WO 2003/012185 (13.02.2003 Gazette 2003/07)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 28.07.2001 GB 0118472 10.05.2002 GB 0210695 (71) Applicant: North, John Herbert Norwich NR5 8PR (GB)	(72) Inventor: North, John Herbert Norwich NR5 8PR (GB) (74) Representative: Nash, Keith Wilfrid  KEITH W. NASH & Co.,90-92 Regent Street Cambridge CB2 1DP Cambridge CB2 1DP (GB)