(19)

(11)

EP 0 937 167 A1

(12)

(43) Date of publication: 25.08.1999 Bulletin 1999/34 (21) Application number: 97911370.0 (22) Date of filing: 07.11.1997

(51) International Patent Classification (IPC):  D06F 23/ 06( . ) D06F 39/ 08( . ) D06F 37/ 04( . ) (86) International application number: PCT/GB1997/003079 (87) International publication number: WO 1998/021392 (22.05.1998 Gazette 1998/20)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 08.11.1996 GB 19960023443 01.07.1997 GB 19970013935 (71) Applicant: Monotub Industries plc Esther, Surrey KT10 9RT (GB)	(72) Inventors: SUMNER, Barry, David East Sussex TN40 2DD (GB) MYERSCOUGH, Martin, William London E1 9TJ (GB) (74) Representative: Howe, Steven, et al  Lloyd Wise, Tregear & Co., Commonwealth House, 1-19 New Oxford Street London WC1A 1LW London WC1A 1LW (GB)