(19)

(11)

EP 0 310 609 A1

(12)

(43) Date of publication: 12.04.1989 Bulletin 1989/15 (21) Application number: 87903373.0 (22) Date of filing: 26.05.1987

(51) International Patent Classification (IPC):  E04B 1/ 26( . ) F16B 5/ 00( . ) (86) International application number: PCT/GB1987/000358 (87) International publication number: WO 1987/007339 (03.12.1987 Gazette 1987/27)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 23.05.1986 GB 19860012597 (71) Applicant: George, William Rodney Goring on Thames Reading RG8 9AH (GB)	(72) Inventor: George, William Rodney Goring on Thames Reading RG8 9AH (GB) (74) Representative: Crawford, Andrew Birkby, et al  A.A. THORNTON & CO. Northumberland House 303-306 High Holborn London WC2A 1AY London WC2A 1AY (GB)