(19)

(11)

EP 0 211 920 A1

(12)

(43) Date of publication: 04.03.1987 Bulletin 1987/10 (21) Application number: 86901434.0 (22) Date of filing: 19.02.1986

(51) International Patent Classification (IPC):  H02K 19/ 12( . ) (86) International application number: PCT/GB1986/000081 (87) International publication number: WO 1986/005041 (28.08.1986 Gazette 1986/19)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 19.02.1985 GB 19850004172 (71) Applicant: THE VICTORIA UNIVERSITY OF MANCHESTER Manchester M13 9PL (GB)	(72) Inventor: McLEAN, Graham, Wilson Lymm Cheshire (GB) (74) Representative: Ajello, Michael John  207 Moss Lane Bramhall, Stockport, Cheshire SK7 1BA Bramhall, Stockport, Cheshire SK7 1BA (GB)