(19)

(11)

EP 0 486 540 A1

(12)

(43) Date of publication: 27.05.1992 Bulletin 1992/22 (21) Application number: 90911859.0 (22) Date of filing: 02.08.1990

(51) International Patent Classification (IPC):  E04F 21/ 10( . ) (86) International application number: PCT/GB1990/001202 (87) International publication number: WO 1991/002131 (21.02.1991 Gazette 1991/05)

(84) Designated Contracting States: AT DE ES FR GB IT (30) Priority: 09.08.1989 GB 19890018135 (71) Applicant: JACOBS, Barry Harrow, Middlesex HA1 3SD (GB)	(72) Inventor: JACOBS, Barry Harrow, Middlesex HA1 3SD (GB)