(19)

(11)

EP 0 079 369 A1

(12)

(43) Date of publication: 25.05.1983 Bulletin 1983/21 (21) Application number: 82901641.0 (22) Date of filing: 21.05.1982

(51) International Patent Classification (IPC):  F24D 3/ 02( . ) F24H 1/ 50( . ) F24H 1/ 28( . ) F24H 8/ 00( . ) (86) International application number: PCT/SE1982/000186 (87) International publication number: WO 1982/004115 (25.11.1982 Gazette 1982/28)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (30) Priority: 21.05.1981 SE 19810003212 (71) Applicant: Fagersta AB S-773 01 Fagersta (SE)	(72) Inventor: BERNSTEIN, Ragnar S-773 00 Fagersta (SE)