(19)

(11)

EP 0 527 766 A1

(12)

(43) Date of publication: 24.02.1993 Bulletin 1993/08 (21) Application number: 91907537.0 (22) Date of filing: 10.04.1991

(51) International Patent Classification (IPC):  E06C 1/ 22( . ) E06C 1/ 12( . ) (86) International application number: PCT/GB1991/000565 (87) International publication number: WO 1991/015651 (17.10.1991 Gazette 1991/24)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 10.04.1990 GB 19900008092 16.05.1990 GB 19900010990 04.12.1990 GB 19900026295 (71) Applicant: SAFESCAPE LIMITED Rainham, Essex RM13 8LX (GB)	(72) Inventors: WESTON, James Thomas Canvey Island, Essex SS8 0PB (GB) WESTON, Richard Rainham, Essex RM13 8LX (GB) (74) Representative: Messulam, Alec Moses  A. Messulam & Co. 24 Broadway Leigh on Sea Essex SS9 1BN Leigh on Sea Essex SS9 1BN (GB)