RAIL PAD FOR RAILWAY RAIL CLAMPING DEVICE AND METHOD TO MANUFACTURE SLEEPER Russian patent published in 2011 - IPC E01B9/30 

FIELD: construction.

SUBSTANCE: rail pad is used with a rail clamping device of fixation, comprising a head and a protruding rod directed from the head into a concrete sleeper. The pad is made with the possibility of passage through a lower side of the head, when the protruding rod of the clamping device is installed in a concrete sleeper. The pad prevents penetration of concrete into the head of the clamping device and retains it on the sleeper surface. The main face surface of the pad, being the highest one in the sleeper application, is equipped with at least one section of the reference surface of the clamp that contacts with the section of the rail clamp.

EFFECT: increased efficiency of rail fixtures operation.

36 cl, 20 dwg