| 摘要 |
FIELD: construction.SUBSTANCE: invention relates to a superstructure of a railway track, namely, to a rail J-bolt, which is applied onto a rail foot. The rail J-bolt comprises a head, a tail part and a concave section. The concave section comprises an upper surface, a lower surface and two side surfaces. Each side surface comprises an area of a support surface of a contact. The head comprises a bend along the head length. The tail part comprises a cut. Each area of the support surface of the contact has the surface area of at least 19.35 cm(3 square inches) and is made so that it stretches at least by 3.81 cm (1.5 inches) down from the top of the railway track sleeper along the sleeper side.EFFECT: invention prevents rail movement.19 cl, 4 dwg |
