(19)

(11)

EP 0 227 778 A1

(12)

(43) Date of publication: 08.07.1987 Bulletin 1987/28 (21) Application number: 86904262.0 (22) Date of filing: 27.06.1986

(51) International Patent Classification (IPC):  B21D 7/ 024( . ) B21D 9/ 07( . ) (86) International application number: PCT/GB1986/000377 (87) International publication number: WO 1987/000097 (15.01.1987 Gazette 1987/01)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 28.06.1985 GB 19850016365 (71) Applicant: INTEGRATED PRODUCTION MACHINES LIMITED Brixworth, Northampton (GB)	(72) Inventor: LAYCOCK, Alan Market Harborough Leicester (GB)