(19)

(11)

EP 0 397 733 A1

(12)

(43) Date of publication: 22.11.1990 Bulletin 1990/47 (21) Application number: 89901577.0 (22) Date of filing: 05.01.1989

(51) International Patent Classification (IPC):  F16B 13/ 02( . ) (86) International application number: PCT/GB1989/000001 (87) International publication number: WO 1989/006321 (13.07.1989 Gazette 1989/15)

(84) Designated Contracting States: DE FR GB (30) Priority: 06.01.1988 GB 19880000214 (71) Applicant: CHAMBERLAIN, Martin Edward Rayleigh, Essex SS6 8HQ (GB)	(72) Inventor: CHAMBERLAIN, Martin Edward Rayleigh, Essex SS6 8HQ (GB) (74) Representative: Messulam, Alec Moses  A. Messulam & Co. 24 Broadway Leigh on Sea Essex SS9 1BN Leigh on Sea Essex SS9 1BN (GB)