(19)

(11)

EP 0 960 018 A1

(12)

(43) Date of publication: 01.12.1999 Bulletin 1999/48 (21) Application number: 98922939.0 (22) Date of filing: 22.05.1998

(51) International Patent Classification (IPC):  B31F 1/ 28( . ) (86) International application number: PCT/GB1998/001482 (87) International publication number: WO 1999/030898 (24.06.1999 Gazette 1999/25)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR IE IT LI NL PT SE (30) Priority: 12.12.1997 GB 19970026358 (71) Applicant: Interfic Engineering Limited Sutton, Surrey SM1 1TE (GB)	(72) Inventors: GREEN, Reginald, Robert Croydon Surrey CR0 5UN (GB) DONNELLY, Pauline, Bridget Sutton Surrey SM1 3ND (GB) (74) Representative: Laight, Martin Harvey  W.H. Beck, Greener & Co. 7 Stone Buildings Lincoln's Inn London WC2A 3SZ London WC2A 3SZ (GB)