(19)

(11)

EP 0 270 612 A1

(12)

(43) Date of publication: 15.06.1988 Bulletin 1988/24 (21) Application number: 87903734.0 (22) Date of filing: 12.06.1987

(51) International Patent Classification (IPC):  E05C( . ) E05C 1/ 10( . ) E05C 1/ 00( . ) E05B 15/ 02( . ) (86) International application number: PCT/GB1987/000409 (87) International publication number: WO 1987/007670 (17.12.1987 Gazette 1987/28)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 13.06.1986 GB 19860014407 28.08.1986 GB 19860020762 27.03.1987 GB 19870007391 (71) Applicant: KING, Derek Daventry, Northamptonshire NN11 4AP (GB)	(72) Inventor: KING, Derek Daventry, Northamptonshire NN11 4AP (GB) (74) Representative: Hepworth, John Malcolm  Hepworth Lawrence Bryer & Bizley Bloxam Court Corporation Street Rugby Warwickshire CV21 2DU Rugby Warwickshire CV21 2DU (GB)