(19)

(11)

EP 0 502 856 A1

(12)

(43) Date of publication: 16.09.1992 Bulletin 1992/38 (21) Application number: 90916028.0 (22) Date of filing: 06.11.1990

(51) International Patent Classification (IPC):  B21C 37/ 06( . ) B23P 11/ 00( . ) B29C 65/ 56( . ) B65H 27/ 00( . ) B21C 37/ 15( . ) B23P 11/ 02( . ) B29D 99/ 00( . ) F16C 13/ 00( . ) (86) International application number: PCT/GB1990/001700 (87) International publication number: WO 1991/006499 (16.05.1991 Gazette 1991/11)

(84) Designated Contracting States: DE FR GB (30) Priority: 07.11.1989 GB 19890025103 (71) Applicant: COURTAULDS PLC London W1A 2BB (GB)	(72) Inventors: ROWAN, James, Harold, Charles Droitwich Worcester WR9 7RJ (GB) GROOME, Beverly, Dawn Walsgrave Coventry CV2 2EP (GB) MARTIN, Simon, Charles Meriden Coventry CV7 7NG (GB) WARD, Keith Rugby CV22 7DG (GB) (74) Representative: Newby, John Ross  J.Y. & G.W. Johnson Furnival House 14/18 High Holborn London WC1V 6DE London WC1V 6DE (GB)