(19)

(11)

EP 0 236 318 A1

(12)

(43) Date of publication: 16.09.1987 Bulletin 1987/38 (21) Application number: 85905415.0 (22) Date of filing: 06.09.1985

(51) International Patent Classification (IPC):  E05F 1/ 10( . ) (86) International application number: PCT/GB1985/000398 (87) International publication number: WO 1987/001411 (12.03.1987 Gazette 1987/06)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (71) Applicants: LINDSAY-WALKER, John Patrick Avon BA2 4QQ (GB) MORRIS, Norman Warwickshire B94 6RU (GB)	(72) Inventors: LINDSAY-WALKER, John Patrick Avon BA2 4QQ (GB) MORRIS, Norman Warwickshire B94 6RU (GB)