(19)

(11)

EP 0 153 359 A1

(12)

(43) Date of publication: 04.09.1985 Bulletin 1985/36 (21) Application number: 84903082.0 (22) Date of filing: 20.08.1984

(51) International Patent Classification (IPC):  F01K 25/ 06( . ) (86) International application number: PCT/GB1984/000290 (87) International publication number: WO 1985/000852 (28.02.1985 Gazette 1985/05)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (30) Priority: 18.08.1983 GB 19830022297 22.12.1983 GB 19830034128 (71) Applicant: Rilett, John Walter Bibury, Gloucestershire GL7 5ND (GB)	(72) Inventor: Rilett, John Walter Bibury, Gloucestershire GL7 5ND (GB)