(19)

(11)

EP 1 004 160 A1

(12)

(43) Date of publication: 31.05.2000 Bulletin 2000/22 (21) Application number: 98936487.2 (22) Date of filing: 29.07.1998

(51) International Patent Classification (IPC)7: H02G 5/00 (86) International application number: PCT/GB9802/144 (87) International publication number: WO 9907/049 (11.02.1999 Gazette 1999/06)

(84) Designated Contracting States: BE DE DK ES FI FR GB IE IT NL (30) Priority: 29.07.1997 GB 9715851 (71) Applicant: Rolla Limited Brighthouse,West Yorkshire HD5 1ET (GB)	(72) Inventor: ROE, George, Roger Berry Brow,Huddersfield HD4 6TR (GB) (74) Representative: Chugg, David John et al Appleyard Lees,15 Clare Road Halifax,West Yorkshire HX1 2HY Halifax,West Yorkshire HX1 2HY (GB)