(19)

(11)

EP 0 305 431 A1

(12)

(43) Date of publication: 08.03.1989 Bulletin 1989/10 (21) Application number: 88901898.0 (22) Date of filing: 01.03.1988

(51) International Patent Classification (IPC):  H02K 1/ 27( . ) H02K 29/ 08( . ) (86) International application number: PCT/GB1988/000145 (87) International publication number: WO 1988/007285 (22.09.1988 Gazette 1988/21)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 10.03.1987 GB 19870005656 (71) Applicant: TORIN LIMITED Swindon, Wiltshire SN3 3JB (GB)	(72) Inventors: RUSSELL, Ronald, Kenneth Shaw Swindon Wiltshire (GB) NEWBOROUGH, Leonard Callow Hill Brinksworth Wiltshire (GB) (74) Representative: James, Michael John Gwynne, et al  Wynne-Jones, Lainé & James 22, Rodney Road Cheltenham Gloucestershire GL50 1JJ Cheltenham Gloucestershire GL50 1JJ (GB)