(19)

(11)

EP 0 892 875 A1

(12)

(43) Date of publication: 27.01.1999 Bulletin 1999/04 (21) Application number: 97916525.0 (22) Date of filing: 10.04.1997

(51) International Patent Classification (IPC):  E04B 2/ 32( . ) E04B 2/ 02( . ) E04B 2/ 36( . ) (86) International application number: PCT/GB1997/000987 (87) International publication number: WO 1997/039199 (23.10.1997 Gazette 1997/45)

(84) Designated Contracting States: AT BE DE ES FR GB IT (30) Priority: 12.04.1996 GB 19960007611 (71) Applicants: Clark, Michael David Scone, Perthshire PH2 6RJ (GB) Clark, Lynda Susan Scone, Perthshire PH2 6RJ (GB)	(72) Inventors: Clark, Michael David Scone, Perthshire PH2 6RJ (GB) Clark, Lynda Susan Scone, Perthshire PH2 6RJ (GB) (74) Representative: Murnane, Graham John, et al  Murgitroyd & Company, 373 Scotland Street Glasgow G5 8QA Glasgow G5 8QA (GB)