(19)

(11)

EP 0 208 727 A1

(12)

(43) Date of publication: 21.01.1987 Bulletin 1987/04 (21) Application number: 86900611.0 (22) Date of filing: 06.01.1986

(51) International Patent Classification (IPC):  B22D 19/ 14( . ) (86) International application number: PCT/GB1986/000006 (87) International publication number: WO 1986/003997 (17.07.1986 Gazette 1986/17)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 12.01.1985 GB 19850000856 (71) Applicant: GKN TECHNOLOGY LIMITED Wolverhampton West Midlands WV4 6BW (GB)	(72) Inventor: BARLOW, John Willenhall West Midlands WV12 5QT (GB)