RAIL FASTENING FOR TRACK ON REINFORCED CONCRETE BASE Russian patent published in 1997 - IPC

FIELD: railway construction engineering. SUBSTANCE: this relates to railway upper structure. Rail fastening has rail chair 1 with bent up end sections. Made in rail chair 1 and base 10 are coaxial holes 4 and inserted into these holes are anchor bolts 2 with clamp 3 slipped on them and device for pressing and fixing of clamp. End section of clamp 3 facing foot of rail 11 has portion bent up towards base for embracing of foot of rail 11. End section of clamp 3 located oppositely to aforesaid section is bent up for tight bearing against end section of rail chair 1. Clamp 3 is spring-loaded relative to anchor bolt 2 in direction of its longitudinal axis. EFFECT: high efficiency. 2 dwg