(19)

(11)

EP 0 551 283 A1

(12)

(43) Date of publication: 21.07.1993 Bulletin 1993/29 (21) Application number: 91915027.0 (22) Date of filing: 06.09.1991

(51) International Patent Classification (IPC):  B65G 53/ 12( . ) B65G 53/ 44( . ) (86) International application number: PCT/FI1991/000275 (87) International publication number: WO 1992/006028 (16.04.1992 Gazette 1992/09)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 01.10.1990 FI 19900004819 (71) Applicant: KOTERA ENGINEERING OY SF-67100 Kokkola (FI)	(72) Inventor: YLÄMÄKI, Jouko SF-63100 Kuortane (FI) (74) Representative: Godwin, Edgar James, et al  MARKS & CLERK, 57-60 Lincoln's Inn Fields London WC2A 3LS London WC2A 3LS (GB)