(19)

(11)

EP 0 514 399 A1

(12)

(43) Date of publication: 25.11.1992 Bulletin 1992/48 (21) Application number: 91902876.0 (22) Date of filing: 29.01.1991

(51) International Patent Classification (IPC):  E04B( . ) E04B 1/ 35( . ) E04B 1/ 348( . ) (86) International application number: PCT/GB1991/000126 (87) International publication number: WO 1991/012386 (22.08.1991 Gazette 1991/19)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 07.02.1990 GB 19900002731 (71) Applicant: ERGOTRAK BUILDING SYSTEMS LIMITED Wishaw, Lanarkshire ML2 0EQ (GB)

(72) Inventors: STEWART, Allan Edinburgh EH6 5HY (GB) ADAMS, James Edinburgh EH12 5BB (GB) LYNCH, John Edinburgh EH14 2LQ (GB) FIONDA, Ralph Hamilton ML3 8PZ (GB) TEDESCO, Domenic Edinburgh EH14 2LQ (GB) FORREST, Brian Linlithgow, West Lothian EH49 6SH (GB) MARSHALL, Richard Musselburgh, East Lothian EH21 6QL (GB) (74) Representative: Pacitti, Pierpaolo A.M.E.  Murgitroyd and Company 373 Scotland Street Glasgow G5 8QA Glasgow G5 8QA (GB)