(19)

(11)

EP 0 090 815 A1

(12)

(43) Date of publication: 12.10.1983 Bulletin 1983/41 (21) Application number: 82902823.0 (22) Date of filing: 01.10.1982

(51) International Patent Classification (IPC):  F02F 3/ 08( . ) F16J 1/ 06( . ) (86) International application number: PCT/GB1982/000280 (87) International publication number: WO 1983/001278 (14.04.1983 Gazette 1983/09)

(84) Designated Contracting States: FR (30) Priority: 08.10.1981 GB 19810030430 (71) Applicant: AE PLC Rugby Warwickshire CV22 7SB (GB)	(72) Inventors: LONG, Anthony David West Yorkshire BD16 3EW (GB) THOMPSON, Frederick Herbert Bradford BD13 1HD (GB)