(19)

(11)

EP 0 129 591 A1

(12)

(43) Date of publication: 02.01.1985 Bulletin 1985/01 (21) Application number: 84900406.0 (22) Date of filing: 29.12.1983

(51) International Patent Classification (IPC):  H01B 17/ 14( . ) (86) International application number: PCT/GB1983/000352 (87) International publication number: WO 1984/002610 (05.07.1984 Gazette 1984/16)

(84) Designated Contracting States: DE FR GB NL (30) Priority: 24.12.1982 GB 19820036774 (71) Applicant: CHERRINGTON, Daniel James Devon (GB)	(72) Inventor: CHERRINGTON, Daniel James Devon (GB) (74) Representative: Stephens, Michael John  M.J. Stephens & Co. 46 Tavistock Place Plymouth PL4 8AX Plymouth PL4 8AX (GB)