METHOD FOR SMOOTH TAPPING OF RAILWAY TRACK WIDTH AND REINFORCED CONCRETE RAIL SEAT FOR ITS REALISATION (VERSIONS) Russian patent published in 2009 - IPC E01B9/00 E01B2/00 

FIELD: construction, road engineering.

SUBSTANCE: inventions are related to track structure and are intended for provision of smooth variation of track width when changing from straight sections of track to curved ones, and also in separate local areas with routine maintenance, for instance in case of high side wear of rail in track with reinforced concrete rail seats on main lines, in metropolitans, tramway tracks and on railway tracks of industrial enterprises. Method for smooth tapping of railway track width in transitional (in the second version - in changeover and turnout) curves, in the third version - railway track in curves from straight section of track with width of track S_n to section of track of circular curve with track width S_K consists in the fact that on curve section there is shift by value t only for internal rail due to over-rail inserts with various thickness of vertical shelf in the first and third versions with external and internal (in the second version - from external) sides of track to maintain current width of track Si, on at least four rail seats for each pitch i of track width variation, for this purpose rail seats are used in the first and third versions with the same dimension type, and in the second one - of several dimension types.

EFFECT: simplified technology for assembly of rail-sleeper grid and possibility of simple control with application of fixation unit parts for these purposes, elimination of additional operations of sleeper sorting and wrong dimension type sleepers, and also reduction of material and time inputs and provision of smooth variation of track width.

10 cl, 11 dwg