(19)

(11)

EP 0 653 008 A1

(12)

(43) Date of publication: 17.05.1995 Bulletin 1995/20 (21) Application number: 93917890.0 (22) Date of filing: 22.07.1993

(51) International Patent Classification (IPC):  E04G 1/ 24( . ) E04G 1/ 36( . ) E04G 1/ 32( . ) (86) International application number: PCT/GB1993/001546 (87) International publication number: WO 1994/002698 (03.02.1994 Gazette 1994/04)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI NL PT SE (30) Priority: 22.07.1992 GB 19920015594 (71) Applicant: SEALE, David Ian Breadsall, Derby DE2 4GB (GB)	(72) Inventor: SEALE, David Ian Breadsall, Derby DE2 4GB (GB) (74) Representative: Lock, Howard John  Swindell & Pearson, 48 Friar Gate Derby DE1 1GY Derby DE1 1GY (GB)