(19)

(11)

EP 0 215 883 A1

(12)

(43) Date of publication: 01.04.1987 Bulletin 1987/14 (21) Application number: 86901965.0 (22) Date of filing: 25.03.1986

(51) International Patent Classification (IPC):  F03G 3/ 08( . ) F16H 33/ 20( . ) (86) International application number: PCT/GB1986/000172 (87) International publication number: WO 1986/005852 (09.10.1986 Gazette 1986/22)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 25.03.1985 GB 19850007684 (71) Applicant: LAITHWAITE, Eric Roberts West Sussex PO21 4AS (GB)	(72) Inventor: LAITHWAITE, Eric Roberts West Sussex PO21 4AS (GB)