(19)

(11)

EP 0 057 173 A1

(12)

(43) Date of publication: 11.08.1982 Bulletin 1982/32 (21) Application number: 80901478.0 (22) Date of filing: 05.08.1980

(51) International Patent Classification (IPC):  F16B 23/ 00( . ) (86) International application number: PCT/AU1980/000043 (87) International publication number: WO 1982/000504 (18.02.1982 Gazette 1982/06)

(84) Designated Contracting States: CH DE FR GB LI SE (71) Applicant: CASTLES, Kevin Paul Lilydale, Vic. 3140 (AU)	(72) Inventor: CASTLES, Kevin Paul Lilydale, Vic. 3140 (AU)