(19)

(11)

EP 0 032 141 A1

(12)

(43) Date of publication: 22.07.1981 Bulletin 1981/29 (21) Application number: 80901057.0 (22) Date of filing: 11.06.1980

(51) International Patent Classification (IPC):  D06B 11/ 00( . ) (86) International application number: PCT/AU1980/000022 (87) International publication number: WO 1980/002852 (24.12.1980 Gazette 1980/29)

(84) Designated Contracting States: AT CH DE FR GB LI NL SE (30) Priority: 11.06.1979 AU 19790009133 (71) Applicant: TYBAR ENGINEERING PTY. LTD. Newtown, Victoria 3220 (AU)	(72) Inventors: McKENDRICK, George Alfred Reddish New Hebrides (FR) BARTLETT, Ian Gordon Belmont, Victoria 3126 (AU)