(19)

(11)

EP 0 248 069 A1

(12)

(43) Date of publication: 09.12.1987 Bulletin 1987/50 (21) Application number: 87900202.0 (22) Date of filing: 12.12.1986

(51) International Patent Classification (IPC):  F01L 1/ 12( . ) F01L 1/ 30( . ) (86) International application number: PCT/GB1986/000761 (87) International publication number: WO 1987/003645 (18.06.1987 Gazette 1987/13)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 14.12.1985 GB 19850030846 (71) Applicant: STIDWORTHY, Frederick Michael Warwickshire CV36 5JY (GB)	(72) Inventor: STIDWORTHY, Frederick Michael Warwickshire CV36 5JY (GB)