UNDER-RAIL DEVICE OF A RAILWAY TRACK AND A METHOD OF LAYING AT LEAST ONE UNDER-RAIL DEVICE OF A RAILWAY TRACK Russian patent published in 2021 - IPC E01B3/00 E01B3/20 E01B3/46 

FIELD: railways.

SUBSTANCE: group of inventions relates to the field of the superstructure of the railway track, in particular to the under-rail devices, as well as to the methods of their laying. The under-rail device contains a sealed shell filled with a viscous working medium. The shell contains inlet and outlet valves. The casing is placed in a housing open at the top. The means for installing rails are located on the upper base plate of the housing. The top plate is mounted on the shell with the possibility of longitudinal and vertical movement. A change in the pressure of the working medium ensures a change in the viscoelastic properties of the shell. When laying the under-rail device on the surface, the body is installed and fixed. A shell is placed in the body, communicated with a source of a viscous working medium by means of a device for regulating the pressure of the medium. An upper support plate is installed on the shell and the pressure in the shell and the position of the stops to align the rail are adjusted.

EFFECT: adjustment of the stiffness of the railway track is provided.

10 cl, 3 dwg