(19)

(11)

EP 1 264 058 A1

(12)

(43) Date of publication: 11.12.2002 Bulletin 2002/50 (21) Application number: 01911917.1 (22) Date of filing: 14.03.2001

(51) International Patent Classification (IPC)7: E04H 15/18 (86) International application number: PCT/GB0101/127 (87) International publication number: WO 0106/9014 (20.09.2001 Gazette 2001/38)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 16.03.2000 GB 0006391 (71) Applicant: Orbit (UK) Services Limited Shepton Mallet,Somerset BA4 5DD (GB)	(72) Inventor: WEYMSS, George MachynllethMontgomeryshire SY20 8NS (GB) (74) Representative: Pratt, David Martin et al Withers & Rogers,Goldings House,2 Hays Lane London SE1 2HW London SE1 2HW (GB)