Patent classifications
E01B3/46
SUPPORT FOR RAILWAY TRACK RAILS
A support for railway track rails includes a central core of parallelepipedal appearance, formed of at least two juxtaposed slats of solid wood or wood-based materials, and a protective sheathing encasing the central core. The protective sheathing is made in one piece and formed by a peripheral wall having at least two opposite upper and lower faces and two opposite lateral faces to fit at least the four longitudinal faces of the central core, as well as at least one internal partition extending between two opposite faces or two contiguous faces of the peripheral wall and delimiting with the peripheral wall of the protective sheathing of at least two cells, each having a shape complementary to a slat of the central core. The slats has a plurality of through-holes, and the through-holes are connected to the through-holes of the adjacent slats by pins of plastic material filling the through-holes.
AUTOMATED SPRAY SYSTEM TO PRODUCE AN ELASTOMERIC PAD ON A RAILROAD TIE
The present disclosure provides for an automated spray system (100) to produce an elastomeric pad on a railroad tie. The automated spray system (100) includes a two-component spray system (102) for spraying a two-component reaction mixture to produce the elastomeric pad on the railroad tie. The automated spray system further includes a gantry system (140) having girder (146) that supports the spray applicator.
AUTOMATED SPRAY SYSTEM TO PRODUCE AN ELASTOMERIC PAD ON A RAILROAD TIE
The present disclosure provides for an automated spray system (100) to produce an elastomeric pad on a railroad tie. The automated spray system (100) includes a two-component spray system (102) for spraying a two-component reaction mixture to produce the elastomeric pad on the railroad tie. The automated spray system further includes a gantry system (140) having girder (146) that supports the spray applicator.
Polymer-based railroad tie having enhanced ballast interaction
A railroad tie formed of a polymeric or polymeric composite material and configured for enhanced mechanical interaction with an underlying ballast. The tie includes at least a top longitudinal surface, a pair of side longitudinal surfaces, a bottom longitudinal surface, and two end faces. At least the bottom longitudinal surface includes a plurality of indentations formed along a length thereof. Additionally, the tie includes at least one serrated edge portion having a plurality of serrations, the at least one serrated edge portion formed along at least part of the longitudinal length of the tie at an edge between at least one of the side longitudinal surfaces and the bottom longitudinal surface to provide for enhanced mechanical interaction with the ballast.
Polymer-based railroad tie having enhanced ballast interaction
A railroad tie formed of a polymeric or polymeric composite material and configured for enhanced mechanical interaction with an underlying ballast. The tie includes at least a top longitudinal surface, a pair of side longitudinal surfaces, a bottom longitudinal surface, and two end faces. At least the bottom longitudinal surface includes a plurality of indentations formed along a length thereof. Additionally, the tie includes at least one serrated edge portion having a plurality of serrations, the at least one serrated edge portion formed along at least part of the longitudinal length of the tie at an edge between at least one of the side longitudinal surfaces and the bottom longitudinal surface to provide for enhanced mechanical interaction with the ballast.
Railroad sleeper and process for manufacturing a railroad sleeper
A railroad sleeper (1) for fixation of at least a pair of rails (2,2′) of a railroad network is disclosed, including a contact surface (3), wherein each rail of the pair of rails (2,2′) is fixed spaced apart from each other, the railroad sleeper (1) being configured by including a hollow sector (4) delimited by association of the contact surface (3) with the anchorage walls (5,5′), thus establishing a free portion (17) adjacent to the anchorage walls (5,5′) and opposite the contact surface (3). An embodiment in which the hollow sector (4) of the railroad sleeper is delimited by a support surface and the process of manufacturing a railroad sleeper is also disclosed.
Railroad sleeper and process for manufacturing a railroad sleeper
A railroad sleeper (1) for fixation of at least a pair of rails (2,2′) of a railroad network is disclosed, including a contact surface (3), wherein each rail of the pair of rails (2,2′) is fixed spaced apart from each other, the railroad sleeper (1) being configured by including a hollow sector (4) delimited by association of the contact surface (3) with the anchorage walls (5,5′), thus establishing a free portion (17) adjacent to the anchorage walls (5,5′) and opposite the contact surface (3). An embodiment in which the hollow sector (4) of the railroad sleeper is delimited by a support surface and the process of manufacturing a railroad sleeper is also disclosed.
COMPOSITE RAIL TIE APPARATUS AND METHOD
A railroad crosstie (tie) may be fabricated from a composite material including a fiber reinforced polymer shell manufactured by pultrusion or other process, and filled by a suitable material, typically selected from expanded elastomeric polymer (such as polyurethane resin or other polymer), concrete, lightweight concrete formed by conventional aggregate, sand, cement, water, and an ultra light filler such as natural materials, sawdust, beads of expanded polymer such as expanded polystyrene, microspheres of glass or plastic, a recycled wooden tie in conjunction with any of the above, or the like. Fasteners may be driven such as spikes, threaded, such as screws, lag screws, spreading screws, rivets, or the like into apertures, pilot holes, or directly into fill absent apertures therein.
COMPOSITE RAIL TIE APPARATUS AND METHOD
A railroad crosstie (tie) may be fabricated from a composite material including a fiber reinforced polymer shell manufactured by pultrusion or other process, and filled by a suitable material, typically selected from expanded elastomeric polymer (such as polyurethane resin or other polymer), concrete, lightweight concrete formed by conventional aggregate, sand, cement, water, and an ultra light filler such as natural materials, sawdust, beads of expanded polymer such as expanded polystyrene, microspheres of glass or plastic, a recycled wooden tie in conjunction with any of the above, or the like. Fasteners may be driven such as spikes, threaded, such as screws, lag screws, spreading screws, rivets, or the like into apertures, pilot holes, or directly into fill absent apertures therein.
COMPOSITE RAILWAY TIE
A railway tie, and method for producing said railway tie, includes an outer shell having an inner surface defining a shell void in the outer shell. A void material fills the shell void. An insert is located in the shell void and spans from a first side of the outer shell to a second side of the outer shell and reinforces the outer shell against force applied to one or both of the first side and the second side. The insert may include an insert-shell component, and a conduit component located in the insert-shell component, the conduit component sized and shaped to receive a railway fastener.