(19)
(11) EP 0 935 574 A1

(12)

(43) Date of publication:
18.08.1999 Bulletin 1999/33

(21) Application number: 97911552.0

(22) Date of filing: 28.10.1997
(51) International Patent Classification (IPC): 
B65G 21/ 20( . )
B65G 47/ 22( . )
(86) International application number:
PCT/SE1997/001792
(87) International publication number:
WO 1998/018698 (07.05.1998 Gazette 1998/18)
(84) Designated Contracting States:
AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

(30) Priority: 29.10.1996 SE 19960003945

(71) Applicant: TETRA LAVAL HOLDINGS & FINANCE SA
1009 Pully (CH)

(72) Inventors:
  • HAMMAR, Kent
    S-215 65 Malmö (SE)
  • JANSSON, Anders
    S-591 62 Motala (SE)

(74) Representative: Forsberg, Lars-Ake 
AB Tetra Pak, Patent Department, Ruben Rausings gata
221 86 Lund
221 86 Lund (SE)

   


(54) A METHOD AND AN APPARATUS FOR REGULATING THE WIDTH BETWEEN TWO SUPPORT RAILINGS ALONG A CURVED CONVEYOR