Abstract: A precast concrete hollow sleeper for use in railway tracks has a body with at least one upper bearing surface for rails and one cavity extending over the entire length of the hollow sleeper and surrounded by the body on at least three sides for accommodating and possibly removing cable crossings and/or switch drive mechanisms and/or equipment for track or train control and/or measuring devices and/or supply lines. The body is made of concrete, preferably concrete with additional reinforcement.

Abstract: Rail fastening system for fastening at least one rail (2) to a rail substrate, preferably a solid travel path, which comprises: a rail support plate (1) arranged for holding the rail (2), wherein the rail (2) in the mounted state is in contact with the rail support plate and is fastened thereto by a rail mount (1a, 1b, 1c); a base plate (3) arranged for fastening the rail support plate (1) on the rail substrate, wherein the rail support plate (1) in the mounted state is fastened on the base plate (3) by way of one or more, preferably two, retaining elements (6) and the base plate (3) is in contact with the rail substrate; wherein the base plate (3) is of multi-part, preferably two-part, construction so that this is adjustable to different dimensions of the rail support plate (1).

Abstract: An installation device for tension clamps for attaching a rail to a railroad tie or another rail substructure, a method for attaching at least two tension clamps in their installation position by such an installation device, and a system made of an installation device with a drive device connected to it are disclosed.

Abstract: A rail fastening system for fastening a rail on a subsurface, preferably a ballastless track, comprises at least one retaining element for mounting the rail on the subsurface. The retaining element has an angle guide plate that, in the assembled state, is configured to divert transverse forces from the rail into the subsurface and a shoulder part that, in the assembled state, is configured to butt together with the angle guide plate and to lie in a recess of the subsurface in a positive-locking manner.

Abstract: Rail fastening system (1) for fastening a rail (2) to a rail subsurface, preferably for a ballastless track, comprising a base plate (10), preferably made of a plastic, and at least one dowel (20), wherein the base plate (10) has at least one opening (15), which completely penetrates the base plate (10) in the thickness direction, and the dowel (20) is introduced into the opening (15), is held therein by means of a retaining contour and projects in the thickness direction at least on one side beyond the base plate (10).

Abstract: An installation device for tension clamps for attaching a rail to a railroad tie or another rail substructure, a method for attaching at least two tension clamps in their installation position by such an installation device, and a system made of an installation device with a drive device connected to it are disclosed.

Abstract: A holddown assembly fastens a railway rail to a transversely extending hollow sleeper formed with a vertically throughgoing hole. An upwardly projecting lateral brace element is provided on the sleeper offset from the hole, and the assembly has a body fitted between the rail and the brace element and transversely bracing the rail against the brace element. An anchor of the assembly is engaged through the hole, projects upward from the sleeper, is transversely shiftable in the hole, and bears upward on the sleeper. A spring clip is pressed by the anchor down against the rail and presses the rail down against the metal sleeper.

Abstract: Rail fastening system for fastening at least one rail (2) to a rail substrate, preferably a solid travel path, which comprises: a rail support plate (1) arranged for holding the rail (2), wherein the rail (2) in the mounted state is in contact with the rail support plate and is fastened thereto by a rail mount (1a, 1b, 1c); a base plate (3) arranged for fastening the rail support plate (1) on the rail substrate, wherein the rail support plate (1) in the mounted state is fastened on the base plate (3) by way of one or more, preferably two, retaining elements (6) and the base plate (3) is in contact with the rail substrate; wherein the base plate (3) is of multi-part, preferably two-part, construction so that this is adjustable to different dimensions of the rail support plate (1).

Abstract: A rail-mounting assembly (S) for fastening a rail (3) to a fixed substrate (5) with an intermediate construction (2) between the rail (3) and the fixed substrate (5) that operatively connects the rail (3) to the fixed substrate (5) in an elastic manner, and the intermediate construction (2) comprises only a elastic intermediate layer element (1; 101) that has a variable elasticity distribution across its cross-section (6) in the direction (7A) of its longitudinal extension (8) and/or in the direction (7B) transverse to its longitudinal extension (8).

Abstract: The invention relates to a rail attachment system (1) for attaching a rail (2) to a concrete support slab (3a) or a concrete sleeper (3b) or to a steel structure comprising an intermediate plate (4), a rail attachment plate (5) with angle guide plates (6, 6b) arranged thereon, at least two first tensioning clamps (7a) for clamping the rail foot (2a) to the rail attachment plate (5) as well as screws (9) and/or ankle bolts (10) and at least two second tensioning clamps for screwing the rail attachment system (1) to the underlying surface, characterized in that an elastic intermediate layer (8) is arranged between the rail (2) and the rail attachment plate (5), and the intermediate plate (4) is composed of a highly elastic material and/or comprises a steel plate (4), at least two second tensioning clamps (7b) for clamping the rail attachment plate (5) to the substructure, preferably via the intermediate plate (4), wherein the first and second tensioning clamps (7a, 7b) are embodied in a highly elastic fashion w

Abstract: Rail-fastening system for the non-positive resilient fastening of a rail (2) on a sleeper (1) of a railway track installation, comprising at least one angle guide plate (5), which can be fixed to the sleeper (1) with at least one screw (4), and at least one clamp (3), characterized in that the bending radii of the clamp arms (3a, 3b) of the clamp (3) preferably lie in the range from 18-70 mm, wherein the ratio of mutually adjacent bending radii within each clamping arm is ?1.9 and the ratio of the greatest to the smallest bending radius thereof is ?3.8, and in that the ratio of weight to width of the angle guide plate is <1.3 g/mm, preferably about 1.25 g/mm.

Abstract: A system for fastening a rail to a substrate has an anchor in the substrate, a fastener having a shank secured in the anchor and a head above the substrate, an angle guide plate vertically traversed by the shank, an annular part between the head of the fastener and the guide plate, and a spring clip engaged between the head and the part and shiftable transversely of the rail and of the shank between a preinstallation position horizontally offset from and not engaging the rail and a final installation position bearing vertically downward on the rail. A seal ring engages in both the preinstallation position and the final installation position around the shank and compressed between the part, the angle plate, and the shank so as to prevent water from traveling down the shank into the anchor.

Abstract: The invention relates to a plastic screw plug (6) for attaching a rail to a sleeper, in particular concrete sleeper, having an essentially cylindrical plug body which has at the head end a stem region (7) which preferably adjoins a plug crown (8) toward the bottom, and in the continuation of which stem region (7) has an outer thread (9) with which it can be turned out of or into the sleeper, and is provided with an inner thread (10) underneath the stem region (7) in order to receive a sleeper screw. The intention is to improve such a plastic screw plug, in particular, with regard to its operating properties such as uniform application of force into the sleeper, simpler mounting and replaceability, reduction of the risk of fracturing, and additionally to permit it to be used in a variable way.

Abstract: Rail-fastening system for the non-positive resilient fastening of a rail (2) on a sleeper (1) of a railway track installation, comprising at least one angle guide plate (5), which can be fixed to the sleeper (1) with at least one screw (4), and at least one clamp (3), characterized in that the bending radii of the clamp arms (3a, 3b) of the clamp (3) preferably lie in the range from 18-70 mm, wherein the ratio of mutually adjacent bending radii within each clamping arm is ?1.9 and the ratio of the greatest to the smallest bending radius thereof is ?3.8, and in that the ratio of weight to width of the angle guide plate is <1.3 g/mm, preferably about 1.25 g/mm.

Abstract: A point rail is shiftable transversely on an upper face of a rail base plate between an engaged position bearing on a longitudinally extending and fixed stock rail and a disengaged position spaced transversely of the stock rail. A roller assembly has a mounting plate securable to the rail base plate, a roller support pivotal about a support axis on the rail base plate, a roller carried on the roller support, and a spring biasing the roller upward with a predetermined spring force into a lift position with the roller projecting upward past the upper face for supporting the point rail on the roller. Thus this assembly supports the point rail and, in the engaged position, presses it against the support cleats and the stock rail and it is an integral part of one of the rail base plates.

Abstract: A rail mount secures a longitudinally extending rail having a foot to a sleeper of a track system. The mount has a rail base plate on the sleeper underneath the rail foot and unitarily formed with a pair of upwardly projecting holders transversely flanking the rail and each formed with at least one vertically throughgoing bore. Respective anchor bolts engaged vertically downward through the bores have heads bearing downward at least indirectly on the respective holders and are seated in the sleeper to hold the base plate down on the sleeper. Respective elastically deformable clips fitted to the holders below the respective anchor-bolt heads bear upwardly on the holders and downwardly on the rail foot to press the rail downwardly toward the sleeper.

Abstract: The invention relates to a device for shifting switch rails (6) associated adjustably with stock rails (7) or mobile frog tongues in railroad switches, configured as a latch or vertical clasp closure, comprising locking catches (4) which are activated by means of a cam or slide rod (5a, 5b), and closure pieces (3) and tongue attachments (2), wherein each locking catch (4) is pivotably supported in a tongue attachment (2) and the switch rail (6) is connected detachably to the tongue attachment (2). An improved and simpler adjustment option is to be created for such a device. For this, the cam or slide rod (5a, 5b) is vertically height-adjustable via a multi-edge body (9) mounted detachably in both closure pieces (3).

Abstract: In the case of a hollow sleeper (1) for adjusting devices of switch blades of railway points, movable common crossings or cable crossings in any desired sections of track and points, formed as an upwardly open hollow sleeper profile with a planar sleeper underside (2), for fitting in a track skeleton, wherein the cross-sectional width and height are made to match a normal concrete, wooden or steel sleeper, the positional stability on ballast can be improved if the sleeper underside (2) of the hollow sleeper (1) is formed with at least one sunken, downwardly open chamber (5).

Abstract: The invention relates to a rail fastener for track systems, comprising a tensioning element (1) made of an elastic material, in particular hardened spring steel that in the assembled state is fixed in place between a retaining plate (3) provided on a sleeper (2) and a fastening anchor (4) such that the tensioning element exerts a retention force on the foot (5) of a rail (6) in order to hold the rail (6) in position, the tensioning element (1) being symmetrically aligned with respect to a vertically oriented plane of symmetry (7) that is perpendicular to the longitudinal axis (8) of the rail (6). According to the invention, the tensioning element (1) has two torsion legs (1a? and 1a?), preferably extending essentially in parallel, in order to achieve stepped overload protection.