(19)

(11)

EP 0 830 222 A1

(12)

(43) Date of publication: 25.03.1998 Bulletin 1998/13 (21) Application number: 96909263.0 (22) Date of filing: 04.04.1996

(51) International Patent Classification (IPC):  B22D 11/ 06( . ) (86) International application number: PCT/GB1996/000856 (87) International publication number: WO 1996/032215 (17.10.1996 Gazette 1996/46)

(84) Designated Contracting States: CH DE ES FR GB GR IT LI LU (30) Priority: 10.04.1995 GB 19950007395 (71) Applicant: DAVY McKEE (POOLE) LIMITED Poole Dorset BH12 5AG (GB)	(72) Inventors: THOMAS, Philip, Milroy Ferndown Dorset BH22 0EP (GB) GROCOCK, Peter, George Wareham Dorset BH20 6AA (GB) (74) Representative: Shindler, Nigel  BATCHELLOR, KIRK & CO. 2 Pear Tree Court Farringdon Road London EC1R 0DS London EC1R 0DS (GB)