(19)

(11)

EP 0 638 003 A1

(12)

(43) Date of publication: 15.02.1995 Bulletin 1995/07 (21) Application number: 94906974.0 (22) Date of filing: 24.02.1994

(51) International Patent Classification (IPC):  B07B 1/ 10( . ) E02B 8/ 02( . ) (86) International application number: PCT/GB1994/000368 (87) International publication number: WO 1994/020226 (15.09.1994 Gazette 1994/21)

(84) Designated Contracting States: AT BE DE ES FR IT NL SE (30) Priority: 01.03.1993 GB 19930004100 (71) Applicant: VICKERYS LIMITED London, SE10 9QJ (GB)	(72) Inventor: MILES, Alan Alfred Epsom, Surrey KT17 2NX (GB) (74) Representative: Meeks, Frank Burton  BREWER & SON Quality House Quality Court Chancery Lane London WC2A 1HT London WC2A 1HT (GB)