(19)

(11)

EP 0 633 969 A1

(12)

(43) Date of publication: 18.01.1995 Bulletin 1995/03 (21) Application number: 93906714.0 (22) Date of filing: 22.03.1993

(51) International Patent Classification (IPC):  B08B 9/ 04( . ) E03F 9/ 00( . ) (86) International application number: PCT/GB1993/000576 (87) International publication number: WO 1993/020295 (14.10.1993 Gazette 1993/25)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI NL PT SE (30) Priority: 30.03.1992 GB 19920006910 (71) Applicant: CRANE, Norman William Thames Ditton, Surrey KT7 0DY (GB)	(72) Inventor: CRANE, Norman William Thames Ditton, Surrey KT7 0DY (GB) (74) Representative: Wells, David  Gill Jennings & Every, Broadgate House, 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)