(19)

(11)

EP 0 190 277 A1

(12)

(43) Date of publication: 13.08.1986 Bulletin 1986/33 (21) Application number: 85904011.0 (22) Date of filing: 14.08.1985

(51) International Patent Classification (IPC):  F15B 5/ 00( . ) (86) International application number: PCT/GB1985/000361 (87) International publication number: WO 1986/001264 (27.02.1986 Gazette 1986/05)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 15.08.1984 GB 19840020719 (71) Applicant: BABCOCK-BRISTOL LIMITED Croydon CR9 4HE, Surrey (GB)	(72) Inventor: GOUGH, Richard, John Sussex RH19 3TP (GB) (74) Representative: Lewis, David Overington  c/o Babcock International plc 165 Great Dover Street London SE1 4YA London SE1 4YA (GB)