(19)

(11)

EP 0 031 828 A1

(12)

(43) Date of publication: 15.07.1981 Bulletin 1981/28 (21) Application number: 80901261.0 (22) Date of filing: 10.07.1980

(51) International Patent Classification (IPC):  B65H 3/ 20( . ) B65H 7/ 14( . ) G03G 15/ 00( . ) B65H 5/ 02( . ) G03B 27/ 62( . ) (86) International application number: PCT/AU1980/000032 (87) International publication number: WO 1981/000246 (05.02.1981 Gazette 1981/04)

(84) Designated Contracting States: AT CH DE FR GB LI NL SE (30) Priority: 11.07.1979 AU 19790009535 (71) Applicants: Grace, Robert John Prospect, South Australia 5082 (AU) Tomes, David Geoffrey Aldinga Beach, S.A. 5173 (AU)	(72) Inventors: Grace, Robert John Prospect, South Australia 5082 (AU) Tomes, David Geoffrey Aldinga Beach, S.A. 5173 (AU) (74) Representative: Harrison, David Christopher  MEWBURN ELLIS York House 23 Kingsway London WC2B 6HP London WC2B 6HP (GB)