(19)

(11)

EP 0 263 117 A1

(12)

(43) Date of publication: 13.04.1988 Bulletin 1988/15 (21) Application number: 87901281.0 (22) Date of filing: 17.02.1987

(51) International Patent Classification (IPC):  F02B 33/ 10( . ) (86) International application number: PCT/AU1987/000041 (87) International publication number: WO 1987/005073 (27.08.1987 Gazette 1987/19)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 17.02.1986 AU 19860004627 (71) Applicant: URQUHART, Robert Leeming, W.A. (AU)	(72) Inventor: URQUHART, Robert Leeming, W.A. (AU)