(19)

(11)

EP 0 227 649 A1

(12)

(43) Date of publication: 08.07.1987 Bulletin 1987/28 (21) Application number: 85903178.0 (22) Date of filing: 28.06.1985

(51) International Patent Classification (IPC):  F01B 3/ 02( . ) F02B 75/ 28( . ) F02B 75/ 26( . ) F02B 75/ 02( . ) (86) International application number: PCT/AU1985/000142 (87) International publication number: WO 1987/000243 (15.01.1987 Gazette 1987/01)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (71) Applicant: ROLLISTON, Peter Robert Greenwood, W.A. 6025 (AU)	(72) Inventor: ROLLISTON, Peter Robert Greenwood, W.A. 6025 (AU)