(19)
(11) EP 0 725 856 A1

(12)

(43) Date of publication:
14.08.1996 Bulletin 1996/33

(21) Application number: 93913755.0

(22) Date of filing: 16.06.1993
(51) International Patent Classification (IPC): 
B28B 7/ 00( . )
E01B 7/ 22( . )
B28B 23/ 00( . )
(86) International application number:
PCT/SE1993/000534
(87) International publication number:
WO 1993/025756 (23.12.1993 Gazette 1993/30)
(84) Designated Contracting States:
AT BE CH DE ES FR GB GR IT LI NL

(30) Priority: 18.06.1992 SE 19920001889

(71) Applicant: ABETONG TEKNIK AB
S-351 03 Växjö (SE)

(72) Inventor:
  • JOHANSSON, Gun-Britt
    S-352 61 Växjö (SE)

(74) Representative: Wennborg, Göte 
Kransell & Wennborg AB Box 27834
115 93 Stockholm
115 93 Stockholm (SE)

   


(54) A METHOD OF MANUFACTURING CONCRETE SLEEPER BLOCKS FOR RAILROAD SWITCH-POINTS, AND A MATRIX AND MATRIX ARRAY FOR USE WHEN APPLYING THE METHOD