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1. AU2016298814 - Railroad renewal method and device for implementing said method

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[ EN ]
Editorial ote
2016298814
Pages are non sequential description pages end page 13 claims start from page 7 to 9. The claims should be pages
14   to    16 
THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS:
1.    A railroad renewal method comprising, in particular, the removal of an old rail, the laying of a new rail and the primary adjustment of a temperature of said new rail at a point located upstream from and close to an attachment area where it is attached to a crosstie, wherein the thermodynamic behavior of an intermediate section of the new rail located between its primary temperature adjustment point and the attachment area is controlled such that the temperature of the new rail is uniform, in a cross section thereof, at a set value at the attachment area.
2.    The method as claimed in claim 1, wherein the intermediate section is thermodynamically controlled by thermally insulating it from the external environment.
3.    The method as claimed in claim 2, wherein said section is thermally insulated by means of at least one thermally insulated tunnel.
4.    The method as claimed in any one of the preceding claims, wherein the primary temperature adjustment is carried out by maintaining a temperature higher than the set value.
5.    The method as claimed in any one of the preceding claims, wherein an additional thermal treatment is carried out along said intermediate section to compensate for thermal interactions with the environment.
6.    The method as claimed in claim 5, wherein the temperature of the intermediate section is measured continuously over all or part of its length by means of at least one sensor coupled to a computer acting on the primary adjustment and/or on the additional thermal treatment.
7.    The method as claimed in claim 5 or 6, wherein said thermal treatment is carried out by means of a thermodynamic fluid.
8.    The method as claimed in claim 7, wherein the thermodynamic fluid is brought, under pressure, into contact with the rail.
9.    The method as claimed in claim 8, wherein the thermodynamic fluid is a heat-transfer fluid sprayed against the faces of the rail.
10.   The method as claimed in claim 5, wherein said additional thermal treatment is carried out by means of a flame that comes into contact with the intermediate section of the rail.
11.   The method as claimed in any one of the preceding claims, wherein the primary temperature adjustment of the intermediate section is carried out by heating by means of at least one induction system.
12.   A railroad renewal device comprising primary temperature adjustment means for carrying out the primary adjustment of the temperature of a new rail located upstream from and close to an attachment area where it is attached to a crosstie, wherein it further comprises a system for controlling and managing the thermodynamic energy of an intermediate section of the new rail located between said primary temperature adjustment means and the attachment area, said system being intended to make the temperature of the new rail uniform at a set value at the attachment area.
13.   The device as claimed in claim 12, wherein said system comprises means for additional thermal treatment along said section for compensating for interactions with the external environment.
14.   The device as claimed in claim 13, wherein said system comprises at least one temperature sensor arranged on the intermediate section, that is coupled to a computer acting on the primary temperature adjustment means and/or on the means for additional thermal treatment.
15.   The device as claimed in claim 14, wherein said system comprises three temperature sensors arranged, respectively, at the primary temperature adjustment means, along the section and at the attachment area.
16.   The device as claimed in any one of claims 13 to 15, wherein said means for additional thermal treatment of the section comprise at least one thermally insulated tunnel.
17.   The device as claimed in any one of claims 13 to 16, wherein said means for additional thermal treatment of the section comprise a heating member that functions according to one or more modes chosen from induction heating, heating by heat-transfer fluid or heating by contact with a flame.
18.   The device as claimed in any one of claims 13 to 16, wherein said means for additional thermal treatment of the section comprise a cooling member.