(19)

(11)

EP 0 605 553 A1

(12)

(43) Date of publication: 13.07.1994 Bulletin 1994/28 (21) Application number: 92920202.0 (22) Date of filing: 24.09.1992

(51) International Patent Classification (IPC):  E04B 1/ 00( . ) E04D 3/ 08( . ) E04D 3/ 06( . ) (86) International application number: PCT/GB1992/001761 (87) International publication number: WO 1993/006317 (01.04.1993 Gazette 1993/09)

(84) Designated Contracting States: BE DE DK FR GB IE LU NL (30) Priority: 27.09.1991 GB 19910020597 (71) Applicant: SCHOLES, Ernest Malcolm Heywood Huddersfield, West Yorkshire HD3 3WW (GB)	(72) Inventor: SCHOLES, Ernest Malcolm Heywood Huddersfield, West Yorkshire HD3 3WW (GB) (74) Representative: Tunstall, Christopher Stephen, et al  Dibb Lupton Broomhead, 117 The Headrow Leeds, West Yorkshire LS1 5JX Leeds, West Yorkshire LS1 5JX (GB)