(19)

(11)

EP 0 682 562 A1

(12)

(43) Date of publication: 22.11.1995 Bulletin 1995/47 (21) Application number: 94906795.0 (22) Date of filing: 09.02.1994

(51) International Patent Classification (IPC):  B02C 2/ 06( . ) (86) International application number: PCT/AU1994/000055 (87) International publication number: WO 1994/017913 (18.08.1994 Gazette 1994/19)

(84) Designated Contracting States: DE FR GB IT SE (30) Priority: 15.02.1993 AU 1993PL07285 (71) Applicant: CLYDE INDUSTRIES LIMITED trading as JAQUES Richmond, VIC 3121 (AU)	(72) Inventor: McKENZIE, Ian, Walter Knoxfield, VIC 3180 (AU) (74) Representative: Shackleton, Nicola, et al  Boult, Wade & Tennant 27 Furnival Street London EC4A 1PQ London EC4A 1PQ (GB)