B - Operations – Transporting – 28 – B
Patent
B - Operations, Transporting
28
B
25/116, 25/76
B28B 23/06 (2006.01) B28B 23/00 (2006.01)
Patent
CA 1223431
18 ABSTRACT In a method of manufacturing for a railway switch- point concrete sleeper blocks of varying lengths and having different number of attachment means located in mutually different positions for the attachment of rails to said blocks there is used a plurality of steel matrices (2; 102) whose respective lengths correspond to the desired lengths of the various sleeper blocks and which exhibit detachably mounted dowels (3; 109). The matrices are placed end to end in an elongate mould bed with the dowels facing upwardly, whereafter reinforcing lines (5) are tensioned and concrete (11) is east into the mould bed and permitted to harden. The thus formed coherent concrete body, whose length may exceed 30 meters, is then removed from the mould and the matrices (2; 102) removed and the dowels (3; 109) remaining cast in the concrete block. The concrete body is then cut into sleeper blocks of desired length. The dowels (109) are accurately mounted in predetermined positions in frame members (111) affixed to the matrices (102). Upon casting and hardening of the sleeper blocks the frame members (111) are disengaged from the matrices (102) and the in-cast dowels (109) for renewed use in a subsequent casting operation. The invention also relates to a matrix array for use in the described method. (Figs. 1 and 8)
426599
A-Betong Ab/sabema Material Ab
Moffat & Co.
LandOfFree
Method of manufacturing concrete sleeper blocks and a matrix... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of manufacturing concrete sleeper blocks and a matrix..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing concrete sleeper blocks and a matrix... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1307906