(19)

(11)

EP 0 422 092 A1

(12)

(43) Date of publication: 17.04.1991 Bulletin 1991/16 (21) Application number: 89907788.0 (22) Date of filing: 15.05.1989

(51) International Patent Classification (IPC):  B24D 18/ 00( . ) B28D 1/ 18( . ) B24D 99/ 00( . ) (86) International application number: PCT/GB1989/000521 (87) International publication number: WO 1989/010820 (16.11.1989 Gazette 1989/27)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI NL SE (30) Priority: 13.05.1988 GB 19880011421 (71) Applicants: INTERNATIONAL GRINDING AND ABRASIVES INC. St. Helier, Jersey (GB) GOODE, Ralph Rhiwbina, Cardiff (GB)	(72) Inventor: GOODE, Ralph Rhiwbina Cardiff (GB) (74) Representative: Gibson, Stewart Harry, et al  URQUHART-DYKES & LORD, Three Trinity Court, 21-27 Newport Road Cardiff CF2 1AA Cardiff CF2 1AA (GB)