(19)

(11)

EP 0 604 527 A1

(12)

(43) Date of publication: 06.07.1994 Bulletin 1994/27 (21) Application number: 92920036.0 (22) Date of filing: 17.09.1992

(51) International Patent Classification (IPC):  E04F 19/ 04( . ) E04H 5/ 10( . ) (86) International application number: PCT/GB1992/001729 (87) International publication number: WO 1993/006319 (01.04.1993 Gazette 1993/09)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI NL SE (30) Priority: 18.09.1991 GB 19910019956 21.01.1992 GB 19920001250 (71) Applicant: MORGAN, Philip, Nigel Hertford, Hertfordshire SG13 7NF (GB)	(72) Inventor: MORGAN, Philip, Nigel Hertford, Hertfordshire SG13 7NF (GB) (74) Representative: Freeman, Jacqueline Carol, et al  W.P. THOMPSON & CO. Celcon House 289-293 High Holborn London WC1V 7HU London WC1V 7HU (GB)