Railway point with flexible tongue

摘要

Acute swing nose crossing comprising a fixed element (1) and a moving element (2), the moving element (2) consisting of a main point (2A) and a counterpoint (2B), the main point (2A) consisting of a front part (2A') and a rear part (2A"). The front part (2A') is made of austenitic manganese steel, for alternate coupling to either side of the fixed element (1 ) to constitute with them a continuous rolling path. The rear part (2A") is made of a machined rail section and is joined to the front part (2A') by a special flash butt welding technique. The counterpoint (2B) is made of machined rail and is integrally joined to the main point (2A) by bolted unions so that the counterpoint (2B) follows the sideways motion of the main point (2A) and is perfectly coupled to it in order to form a continuous rolling path. <IMAGE>