(19)

(11)

EP 0 466 762 A1

(12)

(43) Date of publication: 22.01.1992 Bulletin 1992/04 (21) Application number: 90905590.0 (22) Date of filing: 05.04.1990

(51) International Patent Classification (IPC):  F16C 17/ 06( . ) F16C 33/ 22( . ) (86) International application number: PCT/GB1990/000510 (87) International publication number: WO 1990/012216 (18.10.1990 Gazette 1990/24)

(84) Designated Contracting States: DE FR GB NL SE (30) Priority: 05.04.1989 GB 19890007626 (71) Applicant: VICKERS PLC London SW1P 4RA (GB)	(72) Inventor: BOWERS, Norman, Kenneth 18 Semaphore Road Surrey GU1 3PT (GB) (74) Representative: Skone James, Robert Edmund, et al  GILL JENNINGS & EVERY Broadgate House 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)