(19)

(11)

EP 0 090 832 A1

(12)

(43) Date of publication: 12.10.1983 Bulletin 1983/41 (21) Application number: 82903066.0 (22) Date of filing: 04.10.1982

(51) International Patent Classification (IPC):  A01D 87/ 12( . ) (86) International application number: PCT/SE1982/000312 (87) International publication number: WO 1983/001175 (14.04.1983 Gazette 1983/09)

(84) Designated Contracting States: AT CH DE FR GB LI LU NL SE (30) Priority: 02.10.1981 SE 19810005815 (71) Applicants: ANDREN-VERKEN AB S-333 00 Smalandsstenar (SE) ENSI-SYSTEM HB S-332 00 Gislaved (SE)	(72) Inventor: CARLSSON, Lennart S-332 00 Gislaved (SE) (74) Representative: Franzén, Lars Hjalmar, et al  Awapatent AB Södra Hamngatan 37-41 P.O. Box 11394 S-404 28 Göteborg S-404 28 Göteborg (SE)