(19)

(11)

EP 0 465 477 A1

(12)

(43) Date of publication: 15.01.1992 Bulletin 1992/03 (21) Application number: 90903601.0 (22) Date of filing: 15.02.1990

(51) International Patent Classification (IPC):  F16H 15/ 38( . ) (86) International application number: PCT/GB1990/000244 (87) International publication number: WO 1990/011462 (04.10.1990 Gazette 1990/23)

(84) Designated Contracting States: DE FR GB IT NL SE (30) Priority: 28.03.1989 GB 19890006911 (71) Applicant: Perry, Forbes George De Brie Charlbury Oxford OX7 3PP (GB)	(72) Inventor: Perry, Forbes George De Brie Charlbury Oxford OX7 3PP (GB) (74) Representative: Horton, Andrew Robert Grant  BOWLES HORTON Felden House Dower Mews High Street Berkhamsted Hertfordshire HP4 2BL Berkhamsted Hertfordshire HP4 2BL (GB)