(19)

(11)

EP 0 705 151 A1

(12)

(43) Date of publication: 10.04.1996 Bulletin 1996/15 (21) Application number: 94918483.0 (22) Date of filing: 23.06.1994

(51) International Patent Classification (IPC):  B21B 37/ 46( . ) B21B 1/ 32( . ) B21B 37/ 54( . ) (86) International application number: PCT/GB1994/001364 (87) International publication number: WO 1995/000265 (05.01.1995 Gazette 1995/02)

(84) Designated Contracting States: BE DE ES FR GB IT (30) Priority: 23.06.1993 GB 19930012998 (71) Applicant: DAVY McKEE (SHEFFIELD) LIMITED Sheffield S9 4EX Yorkshire (GB)	(72) Inventor: BURNAND, Peter William,150 Prospect Road Bradway, Sheffield S17 4HX (GB) (74) Representative: Kirk, Geoffrey Thomas  BATCHELLOR, KIRK & CO. 2 Pear Tree Court Farringdon Road London EC1R 0DS London EC1R 0DS (GB)