(19)

(11)

EP 0 528 914 A1

(12)

(43) Date of publication: 03.03.1993 Bulletin 1993/09 (21) Application number: 91909448.0 (22) Date of filing: 15.05.1991

(51) International Patent Classification (IPC):  E05C 17/ 18( . ) (86) International application number: PCT/GB1991/000763 (87) International publication number: WO 1991/018170 (28.11.1991 Gazette 1991/27)

(84) Designated Contracting States: AT BE DE DK FR GB IT LU NL SE (30) Priority: 17.05.1990 GB 19900011081 (71) Applicant: EAGLESPAN LIMITED Yarnton, Oxford OX5 1PB (GB)	(72) Inventor: RANKIN, Brian York YO11 4HY (GB) (74) Representative: Stanley, David William (GB), et al  The Innovation Centre University Road GB-Heslington, York YO1 5DG GB-Heslington, York YO1 5DG (GB)