RAIL FASTENING Russian patent published in 1999 - IPC

FIELD: railway track construction. SUBSTANCE: this relates to devices intended for fastening rail to supporting structure. Rail fastening unit has rail chair with strip part which will carry lower part of rail foot and paddle part with lower end extending downward from strip part. Paddle part is installed in supporting structure and is connected with supporting structure by means of elastomeric material. Paddle part is located at distance from supporting part. Elastomeric material has hollow close to rail chair for giving rail chair possibility for moving vertically down relative to supporting structure. In second version of rail fastening, rail chair is located in bowl which in configuration repeats contour of paddle part. In third version of rail fastening, rail chair additionally has hook-like portion for contact with side surface of rail. In another version, rail chair is made up of two subassemblies. Application of aforesaid embodiment of rail fastening improves attachment of rails to reinforced concrete sleepers. EFFECT: higher efficiency. 47 cl, 15 dwg