Abstract: The present invention relates to a method of joining polymer coated steel pipes comprising the steps of—providing polymer coated pipe segments with an uncoated length on both ends of the segments; —welding the polymer coated pipe segments together; —applying a curable polymer (A) onto the uncoated length of the welded pipe segments to form an first coating layer; and—applying a polymer composition (B) onto the first coating layer to form a topcoat layer with a thickness of 0.5 to 10 mm, wherein the polymer composition (B) has a melt flow rate MFR2 of 1.0 to 6.0 g/10 min, determined according to ISO 1133 at a temperature of 190° C. under a load of 2.

Abstract: A laminated wood and encapsulated railroad tie structure and its associated method of manufacture. A wood core of laminated wood slats is inserted into an extruded sleeve of scrap tire rubber and polyurethane. A urethane adhesive laminates the wood slats together and serves as a lubricant and bonding agent for placement and secured engagement of the sleeve about the core. End caps are securely engaged at each end of the composite sleeve, being secured to both the wood or other natural fiber core and sleeve. Longitudinal grooves or slots for engagement with a railroad bed characterize the bottom and side surfaces of the sleeve. The core may be provided with bores and grooves to receive sensors and conductors interconnected with a processor and transponder maintained in an end cap. The end case also maintains a photovoltaic device and power source for the active elements of the railroad tie structure.

Abstract: A precast plinth for supporting an associated object, such as a rail of a railway track, includes an elongated body made of a material including concrete. The plinth includes an upper face, a lower face, a first side face, a second side face and first and second end faces. The first and second side faces taper away from each other from the upper face to the lower face. A leveling hole can extend from the upper face to the lower face with a threaded leveling insert located in the leveling hole. A grout hole can extend from the upper face to a lower face in a spaced manner from the leveling hole.

Abstract: Apparatus and methods are described for ensuring that blood transfused into a patient is the correct blood for that patient, is transfused in the correct manner and that a complete audit trail is created that will allow later tracing of blood from donation through to ultimate transfusion.

Abstract: Apparatus and methods are described for ensuring that blood transfused into a patient is the correct blood for that patient, is transfused in the correct manner and that a complete audit trail is created that will allow later tracing of blood from donation through to ultimate transfusion.

Abstract: A biblock or multiblock transverse member is provided with concrete blocks which includes plates connected to each other with the aid of an incorporated reinforcement elements. The transverse member consists of many individual prefabricated blocks whose two reinforcement elements are interconnected, more particularly welded.

Abstract: A two-block concrete railroad tie for a fixed rail carriageway with an at least partially continuous reinforcement, which is exposed between the blocks and, after alignment, engages the sealing compound over a supporting layer, becoming anchored in it, the blocks being provided with a mounting surface, which is shortened in the longitudinal direction and from which slanting side surfaces extend upward at least at the front side.

Abstract: A two-block concrete railroad tie for a fixed rail carriageway with an at least partially continuous reinforcement, which is exposed between the blocks and, after alignment, engages the sealing compound over a supporting layer, becoming anchored in it, the blocks being provided with a mounting surface, which is shortened in the longitudinal direction and from which slanting side surfaces extend upward at least at the front side.

Abstract: To provide inexpensively a connector constructed of a steel pipe and bearing a tie function of a ladder-type sleeper for railway tracks, in a connector constructed of a steel pipe 1 used in the ladder-type sleeper for railway tracks integrated with longitudinal beams made of concrete and the connectors constructed of steel pipes 1 by feeding concrete, both end portions of the connector constructed of the steel pipe 1 are flattened in the horizontal direction and a corrosion resistant coating 4 is coated at portions of the connector constructed of the steel pipe 1 exposed to the atmosphere.

Abstract: A railroad rail support includes a first and second horizontally oriented rubber tire having a circumferential tread, a top sidewall including a top rim bead and a bottom sidewall having a bottom rim bead, said bottom sidewall and bottom rim bead being adjacent to a railroad roadbed. First and second rail support members within each tire have a top surface in the plane of the top rim bead and a bottom surface in the plane of the bottom rim bead, and include a top plate and a plurality of tubular channels extending downwards from said top plate to the bottom surface. A concrete matrix fills each rubber tire and retains the rail support within the rubber tire. Railroad spikes are installed into the tubular channels have heads overlapping the opposed edges of the bottom flange of a first and a second railroad rail. Each spike is locked into its respective tubular channel by extending downwards in a generally vertical direction, with a second contiguous portion at an angle of at least 30.degree.

Abstract: A railroad rail support includes a first and second horizontally oriented rubber tire having a circumferential tread, a top sidewall including a top rim bead and a bottom sidewall having a bottom rim bead, said-bottom sidewall and bottom rim bead being adjacent to a railroad roadbed. First and second rail support members within each tire have a top surface in the plane of the top rim bead and a bottom surface in the plane of the bottom rim bead, and include a top plate and a plurality of tubular channels extending downwards from said top plate to the bottom surface. A concrete matrix fills each rubber tire and retains the rail support within the rubber tire. Railroad spikes are installed into the tubular channels have heads overlapping the opposed edges of the bottom flange of a first and a second railroad rail. Each spike is locked into its respective tubular channel by extending downwards in a generally vertical direction with a second contiguous portion at an angle of at least 30.degree.

Abstract: A tie-bar for mixed railway tie, constituted by an angle shaped in the vicinity of each of its ends, over an intermediate part joining the central part of the angle to each of its end parts, so that each end part occupies in each block a position in which one of its wings passes at a distance beneath the vertical orifices for passage of rail screws, its other wing passing at a distance along the orifices.

Abstract: A structure for fixing a rail to a tie includes a short stud 24 which is embedded in the concrete 2 of a tie above the longitudinally extending metal strut 4 of the tie and on the axis thereof. Welded to this stud, and even half embedded therein, are upper portions of two arch elements 26 whose branch are divergent on each side of the strut and are bent at their ends in the vicinity of the horizontal central axis of the strut so as to constitute hooks 34.

Abstract: A railway track in which a rail is supported within a groove of a rail bed. The groove has outwardly sloping shoulders each spaced from the sides of the rail. Continuous clamps extend along each side of the rail. The clamps are secured by spaced apart hold-down assemblies positioned vertically between the clamps and the respective sloping shoulders to secure the track against both vertical and lateral movement. Elastic material pads completely isolate a rail from both the bed and the clamps.

Abstract: The composite railway tie has performances which are substantially improved over those of ties of the prior art while it results in a saving in weight of metal necessary and in the cost of manufacture.The reinforcement of this tie comprises a lower assembly and an upper assembly each formed by a folded steel wire defining parallel lengths of wire connected by curved portions. The reinforcement also comprises an S-section tie member including a web which is substantially vertical and contained in the vertical plane of symmetry of the tie and two flanges which are roughly horizontal. This tie member may be manufactured on a press or by cold folding relatively cheap flat steel products.