(19)

(11)

EP 0 760 722 A1

(12)

(43) Date of publication: 12.03.1997 Bulletin 1997/11 (21) Application number: 95921922.0 (22) Date of filing: 15.06.1995

(51) International Patent Classification (IPC):  B21J 15/ 02( . ) F16B 19/ 08( . ) F16B 5/ 04( . ) (86) International application number: PCT/GB1995/001399 (87) International publication number: WO 1995/035174 (28.12.1995 Gazette 1996/03)

(84) Designated Contracting States: DE ES FR GB IT SE (30) Priority: 22.06.1994 GB 19940012561 (71) Applicant: ARIEL INDUSTRIES PLC Leicester LE5 4JG (GB)	(72) Inventor: Edwards, Kenneth Leicester LE5 4JG (GB) (74) Representative: Jackson, Derek Charles  Ariel Industries plc, Ariel Works, Temple Road Leicester LE5 4JG Leicester LE5 4JG (GB)