Automatic railway controlled buffer coupling

An improved automatic central buffer coupling plate for rail vehicles of the type having a side defining a vertical planar impact surface (1), a cone (3) projecting from and having a base adjacent the impact surface, and a funnel-shaped member (4) extending from a side of the plate opposite the impact surface, the funnel-shaped member and cone being uniformly spaced from a vertical median plane passing through the plate, the funnel-shaped member having a circular opening at the impact surface of a diameter about equal to that of the cone base for receiving a cone of an opposite coupling plate, comprising, in combination, the improvement wherein the cone is formed with a tip portion (7) on an end of the cone having a convex shape, and the funnel-shaped member is formed with an inwardly inclined chamfer (10) at the circular opening, having on the impact surface, the configuration of a square with sides (9) tangent to the circular opening.