(19)

(11)

EP 0 214 264 A1

(12)

(43) Date of publication: 18.03.1987 Bulletin 1987/12 (21) Application number: 86901934.0 (22) Date of filing: 12.03.1986

(51) International Patent Classification (IPC):  B63C 11/ 22( . ) (86) International application number: PCT/GB1986/000139 (87) International publication number: WO 1986/005461 (25.09.1986 Gazette 1986/21)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 12.03.1985 GB 19850006341 (71) Applicant: Krasberg, Alan Aberdeen AB1 2UU Scotland (GB)	(72) Inventor: Krasberg, Alan Aberdeen AB1 2UU Scotland (GB)