(19)

(11)

EP 0 201 556 A1

(12)

(43) Date of publication: 20.11.1986 Bulletin 1986/47 (21) Application number: 85905647.0 (22) Date of filing: 18.11.1985

(51) International Patent Classification (IPC):  B63C 11/ 18( . ) (86) International application number: PCT/GB1985/000522 (87) International publication number: WO 1986/002900 (22.05.1986 Gazette 1986/11)

(84) Designated Contracting States: DE FR GB IT SE (30) Priority: 16.11.1984 GB 19840029015 (71) Applicant: Krasberg, Alan Aberdeen AB1 2UU Scotland (GB)	(72) Inventor: Krasberg, Alan Aberdeen AB1 2UU Scotland (GB) (74) Representative: Wotherspoon, Graham  FITZPATRICKS 4 West Regent Street Glasgow G2 1RS Scotland Glasgow G2 1RS Scotland (GB)