Rail freight train for transporting long welded rails (5), comprising freight wagons (4) transferable on a railroad track (3) and a device (13) arranged at one end of the freight train (1) of rails for anchoring the rails (5), which is composed of a plurality of plug-in devices (14) each provided for anchoring an individual rail (5), each of which has a first and second jaws of clamping (15, 16) with individual contact surfaces (17, 18) intended to be applied with force coupling to a core (19) of the rail (5), characterized in that the first clamping jaw (15) is fixedly connected with the device (13) and the second clamping jaw (16), which has a wedge contact surface (24) that is distanced from the contact surface (18) of said first jaw and which encloses with this contact surface a wedge angle α and runs in the normal direction to pl tilting anus (23), is conceived as adjustable by a clamping wedge (21) that is movable in the longitudinal direction (20) of the rail and that is conceived as movable parallel to the contact surfaces (17, 18) between the wedge contact surface (24) and a wedge guide (25) and have a clamping jaw contact surface (26) that encloses the wedge angle α with the contact surface (18), and why the wedge Clamping (21) has a hole (30) with an internal thread (31) and is screwed with a threaded spindle (32) that can be rotated by a drive (34).
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