(19)

(11)

EP 0 299 013 A1

(12)

(43) Date of publication: 18.01.1989 Bulletin 1989/03 (21) Application number: 88900752.0 (22) Date of filing: 23.12.1987

(51) International Patent Classification (IPC):  B21D 51/ 38( . ) B65D 47/ 36( . ) B65D 17/ 34( . ) H04N 7/ 167( . ) (86) International application number: PCT/US1987/003418 (87) International publication number: WO 1988/005407 (28.07.1988 Gazette 1988/17)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 23.01.1987 WO 1987US00102 29.09.1987 WO 1987US02649 (71) Applicant: WEIRTON STEEL CORPORATION Weirton, WV 26062-4989 (US)	(72) Inventors: SAUNDERS, William, T. Weirton, WV 26062 (US) BRAY, James, A. Salineville, OH 43945 (US) DALRYMPLE, William, H. Weirton, WV 26062 (US) MEERDO, Robert Burgettstown, PA 15021 (US) (74) Representative: Jones, Colin, et al  W.P. THOMPSON & CO. Coopers Building Church Street Liverpool L1 3AB Liverpool L1 3AB (GB)