(19)

(11)

EP 0 880 415 A1

(12)

(43) Date of publication: 02.12.1998 Bulletin 1998/49 (21) Application number: 97903464.0 (22) Date of filing: 14.02.1997

(51) International Patent Classification (IPC):  B21F 1/ 02( . ) (86) International application number: PCT/GB1997/000413 (87) International publication number: WO 1997/029871 (21.08.1997 Gazette 1997/36)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 15.02.1996 GB 19960003200 10.09.1996 GB 19960018895 (71) Applicant: PAVE AUTOMATION DESIGN AND DEVELOPMENT LIMITED Peterborough, PE1 5XL (GB)	(72) Inventor: PERNA, Antonio Andrew Peterborough PE1 7JR (GB) (74) Representative: Roberts, David Leslie  Keith W. Nash & Co., 90-92 Regent Street Cambridge CB2 1DP Cambridge CB2 1DP (GB)