(19)

(11)

EP 0 278 950 A1

(12)

(43) Date of publication: 24.08.1988 Bulletin 1988/34 (21) Application number: 86904291.0 (22) Date of filing: 14.07.1986

(51) International Patent Classification (IPC):  E05B 49/ 00( . ) (86) International application number: PCT/GB1986/000406 (87) International publication number: WO 1988/000635 (28.01.1988 Gazette 1988/03)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (71) Applicant: LOWE & FLETCHER LIMITED Leamore, Walsall West Midlands WS2 7LZ (GB)	(72) Inventors: O'CONNELL, John West Midlands (GB) JEFFERIES, Roy, Stephen Bridgnorth Salop WV16 4TA (GB) (74) Representative: Lewis, Samuel Hewitt, et al  FORRESTER & BOEHMERT Franz-Joseph-Strasse 38 D-80801 München D-80801 München (DE)