(19)

(11)

EP 0 358 644 A1

(12)

(43) Date of publication: 21.03.1990 Bulletin 1990/12 (21) Application number: 88902524.0 (22) Date of filing: 18.03.1988

(51) International Patent Classification (IPC):  H01H 71/ 32( . ) H01H 71/ 42( . ) (86) International application number: PCT/GB1988/000210 (87) International publication number: WO 1988/007755 (06.10.1988 Gazette 1988/22)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 21.03.1987 GB 19870006759 (71) Applicant: SCHOLES GROUP PLC. Wythenshawe Manchester M22 4RA (GB)	(72) Inventor: KIDD, Alan, Lister Southport PR8 2LN (GB) (74) Representative: Massey, Alexander, et al  MARKS & CLERK, Sussex House, 83-85 Mosley Street Manchester M2 3LG Manchester M2 3LG (GB)