(19)

(11)

EP 0 856 081 A1

(12)

(43) Date of publication: 05.08.1998 Bulletin 1998/32 (21) Application number: 96935031.0 (22) Date of filing: 17.10.1996

(51) International Patent Classification (IPC):  D21F 1/ 00( . ) (86) International application number: PCT/GB1996/002555 (87) International publication number: WO 1997/014845 (24.04.1997 Gazette 1997/18)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 17.10.1995 GB 19950021190 (71) Applicant: SCAPA GROUP PLC Blackburn, Lancashire BB2 6AY (GB)	(72) Inventors: ASHWORTH, Timothy Near Blackburn BB1 9PX (GB) HODSON, Mark Lancashire BB2 7JU (GB) (74) Representative: Middlemist, Ian Alastair, et al  Wilson Gunn M'Caw, 41-51 Royal Exchange, Cross Street Manchester, M2 7BD Manchester, M2 7BD (GB)