(19)

(11)

EP 0 956 256 A1

(12)

(43) Date of publication: 17.11.1999 Bulletin 1999/46 (21) Application number: 98902373.0 (22) Date of filing: 02.02.1998

(51) International Patent Classification (IPC):  B65H 54/ 58( . ) H02G 11/ 02( . ) B65H 67/ 04( . ) (86) International application number: PCT/SE1998/000176 (87) International publication number: WO 1998/033737 (06.08.1998 Gazette 1998/31)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE Designated Extension States: LT LV RO SI (30) Priority: 03.02.1997 SE 19970000370 (71) Applicant: ASEA BROWN BOVERI AB 721 83 Västeras (SE)	(72) Inventors: LEIJON, Mats S-723 35 Väster s (SE) BACKLUND, Alberti S-734 37 Hallstahammar (SE) KALLDIN, Hans-Olof S-723 46 Väster s (SE) LINDBORG, Tomas S-724 77 Väster s (SE) JOHANSSON, Kenneth S-722 28 Väster s (SE) (74) Representative: Karlsson, Leif Karl Gunnar  L.A. Groth & Co. KB, Box 6107 102 32 Stockholm 102 32 Stockholm (SE)