(19)

(11)

EP 0 076 282 A1

(12)

(43) Date of publication: 13.04.1983 Bulletin 1983/15 (21) Application number: 82900978.0 (22) Date of filing: 02.04.1982

(51) International Patent Classification (IPC):  H02K 51/ 00( . ) (86) International application number: PCT/GB1982/000104 (87) International publication number: WO 1982/003506 (14.10.1982 Gazette 1982/25)

(84) Designated Contracting States: DE FR (30) Priority: 06.04.1981 GB 19810010719 (71) Applicant: UNIVERSITY OF DURHAM Durham, DH1 3HP (GB)	(72) Inventor: ENDEAN, Vivian Geoffrey Nevilles Cross Durham DH1 4NU (GB)