摘要:
A module (100) for a system for the laying of underground and railroad and tram lines both in tunnel and on the surface, in particular railroad and tram lines, comprising a supporting slab (101) for the tracks (6), with substantially parallelepiped shape, the slab having at least four peripheral housings (1), passing from the extrados to the intrados and suitable to house respective adjustable levelling devices (120).
摘要:
An adjustable crane rail brace that provides for lateral movement of a crane rail having a rail base resting upon a tie plate. The brace includes a block mounted to the tie plate and a wedge interposed between the block and the rail base. The wedge is slidable longitudinally with respect to the rail base. The block is mounted at an acute angle with respect to the lateral edge of the rail base, and the wedge has sides at this acute angle with respect to each other. The wedge also has a first serrated portion. The brace includes a member having a top face and having a second serrated portion. The first and second serrated portions are in frictional engagement, and the member has a resilient nose extending downwardly in contact with the rail base. The brace further has a spring for exerting downward force upon the top face.
摘要:
A railway rail anchoring device (12) for fastening a railway rail (16) to an underlying foundation (18), the anchoring device comprising a protrusion (28), the anchoring device protrusion being configured to cooperate with a corresponding recess (36) provided in a receiving portion associated with the underlying foundation.
摘要:
A system includes a guide plate, a fastening member and a resilient member, for fastening a rail on a solid base. The guide plate serves as a guide for the rail in the horizontal direction and as a stop for movements of the rail in the vertical direction. The guide plate has a contacting surface against which the longitudinal side of the foot of the rail rests. The resilient member which rests on the guide plate exerts substantially no hold-down force on the rail and merely supports the guide plate elastically against the clamping member. The resilient member is of a W-shaped or S-shaped configuration and, in the fitted state, a portion thereof projects sufficiently far over the foot of the rail for it to be retained resiliently by the resilient member if it is moved upwards in the vertical direction.
摘要:
The invention provides a base plate, and a fastener equipped with such a base plate, whose weight is minimized and whose stiffness is optimised on the one hand and which is suitable for being supported on an elastic intermediate layer on the other hand. To this end, a base plate according to the invention for fastening a rail to a fixed bottom support has, the base plate being made of a plastics material and a stiffening structure which is formed by ribs and by depressions present between the ribs being formed or molded in the underside of the base plate, which underside is associated with the fixed bottom support, depressions of the stiffening structure being closed off, in accordance with the invention, by a filling material.