UNIVERSAL SEPARATE RAIL FASTENING FOR LAYING VEDERNIKOVA RAILWAY TRACK STRUCTURE Russian patent published in 2017 - IPC E01B9/30 E01B9/48 

FIELD: construction.

SUBSTANCE: universal, separate rail fastening for laying railway tracks contains terminals, a pad, a back-up plate, connected by bolted connections, equipped with a baseplate. The upper surface of the baseplate has a concave M-shape with lateral shoulders and radial longitudinal grooves. The back-up plate has a convex lower surface of M-shape repeating the outline of the upper surface of the baseplate, with side shoulders and radial longitudinal grooves, which are a mirror image relative to the baseplate. Bevels are made at an angle of 45º at the edges of the upper surface of the back-up plate the entire width . The pad is M-shaped with tapering edges and located in the M-shaped gap between the baseplate and the back-up plate. The terminals are made with surfaces, one of which is made in accordance with the outline of the upper part of the rail base, and the other is at an angle of 45°. On the baseplate there is a pad, back-up plate, located successively and fastened together in pairs on both sides by bolted connections. For this purpose, coaxial cylindrical through holes are made in the back-up plate, pad and baseplate for the bolted connections. In the lower part of the baseplate, there are oval grooves in which oval shims are installed for the bolt caps. In the upper part of the back-up plate, the holes are formed with a spotfacer. Clamping of the terminals to the back-up plate is carried out by bolted connections through a spacer, for what the coaxial cylindrical through holes are made in the back-up plate, spacer and terminals.

EFFECT: reliable operation of rail fastening at high cyclic loads.

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