(19)

(11)

EP 0 858 375 A1

(12)

(43) Date of publication: 19.08.1998 Bulletin 1998/34 (21) Application number: 96937619.0 (22) Date of filing: 28.10.1996

(51) International Patent Classification (IPC):  B23B 51/ 04( . ) (86) International application number: PCT/SE1996/001385 (87) International publication number: WO 1997/015413 (01.05.1997 Gazette 1997/19)

(84) Designated Contracting States: BE CH DE DK ES FI FR GB LI NL SE (30) Priority: 27.10.1995 SE 19950003797 (71) Applicant: SANDVIK AKTIEBOLAG 811 81 Sandviken (SE)	(72) Inventors: ALM, Sture S-531 30 Lidköping (SE) HOLM, Per S-531 31 Lidköping (SE) (74) Representative: Taquist, Lennart  Sandvik AB Patent Department 811 81 SANDVIKEN 811 81 SANDVIKEN (SE)