(19)

(11)

EP 0 819 042 A1

(12)

(43) Date of publication: 21.01.1998 Bulletin 1998/04 (21) Application number: 97902800.0 (22) Date of filing: 30.01.1997

(51) International Patent Classification (IPC):  B27B 17/ 02( . ) B27B 17/ 08( . ) (86) International application number: PCT/SE1997/000149 (87) International publication number: WO 1997/027980 (07.08.1997 Gazette 1997/34)

(84) Designated Contracting States: DE FI SE (30) Priority: 02.02.1996 SE 19960000371 (71) Applicant: SANDVIK AKTIEBOLAG 811 81 Sandviken (SE)	(72) Inventor: LEINI, Arvo S-828 00 Edsbyn (SE) (74) Representative: Taquist, Lennart, et al  Sandvik AB Patent Department 811 81 SANDVIKEN 811 81 SANDVIKEN (SE)