(19)

(11)

EP 0 182 804 A1

(12)

(43) Date of publication: 04.06.1986 Bulletin 1986/23 (21) Application number: 85902101.0 (22) Date of filing: 20.05.1985

(51) International Patent Classification (IPC):  F16H 33/ 14( . ) (86) International application number: PCT/GB1985/000213 (87) International publication number: WO 1985/005428 (05.12.1985 Gazette 1985/26)

(84) Designated Contracting States: DE FR GB IT SE (30) Priority: 24.05.1984 GB 19840013326 (71) Applicant: CVT DEVELOPMENTS LTD. Glasgow G2 1DA (GB)	(72) Inventor: BLACKBURN, Donald, Macpherson Renfrewshire PA8 5TJ (GB) (74) Representative: McCallum, William Potter, et al  Cruikshank & Fairweather 19 Royal Exchange Square Glasgow G1 3AE Scotland Glasgow G1 3AE Scotland (GB)