(19)

(11)

EP 0 847 455 A1

(12)

(43) Date of publication: 17.06.1998 Bulletin 1998/25 (21) Application number: 96928616.0 (22) Date of filing: 30.08.1996

(51) International Patent Classification (IPC):  B24D 18/ 00( . ) C25D 15/ 00( . ) (86) International application number: PCT/GB1996/002132 (87) International publication number: WO 1997/009469 (13.03.1997 Gazette 1997/12)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB IE IT LI NL PT SE (30) Priority: 01.09.1995 GB 19950017854 (71) Applicant: Consort Precision Diamond Company Limited Kimmel Bay, Rhyl, Clwyd LL18 5JA (GB)	(72) Inventors: MORRIS, Peter, David Abergele Clwyd LL22 7AT (GB) NOAKES, Stephen, Leslie Colwyn Bay Clwyd LL29 7ES (GB) (74) Representative: Lyons, Andrew John  ROYSTONS, Tower Building, Water Street Liverpool L3 1BA, Merseyside Liverpool L3 1BA, Merseyside (GB)