(19)

(11)

EP 0 250 412 A1

(12)

(43) Date of publication: 07.01.1988 Bulletin 1988/01 (21) Application number: 86901549.0 (22) Date of filing: 07.02.1986

(51) International Patent Classification (IPC):  F24D 19/ 06( . ) (86) International application number: PCT/SE1986/000054 (87) International publication number: WO 1986/004667 (14.08.1986 Gazette 1986/18)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 08.02.1985 SE 19850000587 (71) Applicant: AB FELLINGSBRO VERKSTÄDER S-710 41 Fellingsbro (SE)	(72) Inventors: KÖNBERG, Kurt S-162 24 Vällingby (SE) PAPI, Adolfo Dainville F-62000 Arras (FR) (74) Representative: Holdcroft, James Gerald, Dr., et al  Graham Watt & Co., Riverhead Sevenoaks, Kent TN13 2BN Sevenoaks, Kent TN13 2BN (GB)