(19)

(11)

EP 0 871 815 A1

(12)

(43) Date of publication: 21.10.1998 Bulletin 1998/43 (21) Application number: 97900280.0 (22) Date of filing: 06.01.1997

(51) International Patent Classification (IPC):  E05B 67/ 38( . ) E06B 9/ 02( . ) E06B 9/ 01( . ) (86) International application number: PCT/GB1997/000027 (87) International publication number: WO 1997/025510 (17.07.1997 Gazette 1997/31)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 06.01.1996 GB 19960000258 22.07.1996 GB 19960015329 (71) Applicant: Powell, Henry Newtown, Powys SY16 3AG (GB)	(72) Inventor: Powell, Henry Newtown, Powys SY16 3AG (GB) (74) Representative: Barnfather, Karl Jon, Dr., et al  Withers & Rogers, 4, Dyer's Buildings, Holborn London EC1N 2JT London EC1N 2JT (GB)