(19)

(11)

EP 0 650 404 A1

(12)

(43) Date of publication: 03.05.1995 Bulletin 1995/18 (21) Application number: 93916095.0 (22) Date of filing: 16.07.1993

(51) International Patent Classification (IPC):  B23K 26/ 00( . ) B23K 26/ 08( . ) B41C 1/ 05( . ) B23K 26/ 03( . ) B23K 26/ 38( . ) (86) International application number: PCT/GB1993/001502 (87) International publication number: WO 1994/002280 (03.02.1994 Gazette 1994/04)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 16.07.1992 GB 19920015140 (71) Applicant: ZED INSTRUMENTS LIMITED Hersham Surrey, KT12 3PD (GB)	(72) Inventors: ROBERTS, Simon, Hugh London SW8 2EG (GB) PROCTOR, Michael Blandford Forum Dorset KT 11 0DF (GB) (74) Representative: Wells, David  Gill Jennings & Every, Broadgate House, 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)