| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 238029000 | TIES | 51 |
| 20100320281 | TIE FOUNDATION FOR A RAILWAY TIE - A tie foundation ( | 12-23-2010 |
| 238030000 | Forms | 9 |
| 20130082116 | USE OF A COMPOSITION BASED ON THERMOPLASTIC RESIN FOR THE MANUFACTURE OF RAILWAY SLEEPERS - The present invention relates to the use of a composition based on thermoplastic resin and on natural fibres, in particular plant fibres, for the manufacture of railway sleepers intended for all means of transport that need to run on rails, in particular trains, trams, and underground trains. The present invention also relates to railway sleepers produced from said composition. | 04-04-2013 |
| 20140312133 | Train Rail Track Structure Systems - A train rail track structure system includes a c-face down steel channel cross tie defining a plurality of holes in a top wider web surface thereof and a protrusion with perpendicular faces extending from an underside of the top surface, the holes configured to pass a fixative and solidifying mixture into a ballast bed there beneath. The protrusion anchors the steel channel cross tie in the fixative and solidifying mixture and the ballast bed. The disclosed system also includes a c-face down steel channel connecting link defining a receptacle for at least one intermediate rail support member in a top wider web surface thereof. The link also defines tabs and notches proximal to both longitudinal ends of the steel channel connecting link configured to interleave with at least one steel channel cross tie and interlock the steel channel connecting link to the steel channel cross tie. | 10-23-2014 |
| 20140339319 | TIE EXTENSION BRACKET - A tie extension bracket comprises a rectangular-shaped box having at least three sides. Two of the sides being arranged parallel to each other and the remaining side being a connecting support plate connecting the two parallel sides to each other. The two parallel sides extending beyond the connecting support plate to form a U-shaped portion dimensioned to receive at least an end portion of a railroad tie therein. | 11-20-2014 |
| 238035000 | Multiple section | 3 |
| 20110233292 | INTEGRATED TRAIN RAIL SYSTEM WITH TIES AND THERMAL EXPANSION JOINTS - A railroad tie that is positioned on a rail bed as part of a rail system comprises a first end section, a second end section, and a middle section The middle section extends between and couples the first end section and the second end section The first end section has a first width The second end section has a second width The middle section has a middle width that is at least five percent different than the first width and the second width The middle width can be at least five percent less than the first width and the second width Additionally, the first width can be substantially equal to the second width Further, the middle section can extend away from the first end section at a first angle of between approximately 75 and 95 degrees | 09-29-2011 |
| 20130008973 | POLYMER BASED RAILROAD TIE SHAPED TO REDUCE CENTER BOUNDING - A railroad tie composed of an immiscible polymer blend having a portion of the underside curved orthogonal to the longitudinal axis of the tie or curved both orthogonal and parallel to the longitudinal axis of the tie, forming a saddle shape, for purposes of reducing the center bounding problems encountered in prior art synthetic railroad ties. | 01-10-2013 |
| 20150028121 | HIGH-SPEED RAILWAY AERODYNAMIC SLEEPER - The high-speed railway aerodynamic sleeper ( | 01-29-2015 |
| 238037000 | Horizontal sandwich | 1 |
| 20160083911 | CONCRETE SLEEPER AND SOLID CARRIAGEWAY - A concrete sleeper for a solid carriageway, having a fixing block, which is inserted with the upper section thereof into an underside recess in the concrete sleeper, is mounted elastically by a ring produced from an elastomer and which can be inserted with the lower section thereof into a fillable cut-out in a top layer of the solid carriageway. A base made of an elastic material is arranged on the underside of the concrete sleeper. | 03-24-2016 |
| 238042000 | Stringer ends | 2 |
| 20100213267 | RAIL SLEEPER - The rail sleeper ( | 08-26-2010 |
| 20130075486 | RAIL SLEEPER - The rail sleeper ( | 03-28-2013 |
| 238054000 | Cross section | 6 |
| 20090121036 | HOLLOW SLEEPER - In the case of a hollow sleeper ( | 05-14-2009 |
| 20110155819 | APPARATUS FOR REINFORCING RAILROAD TIES - The present invention comprises a railroad tie disposed below the rails to support the rails and comprising a protrusion on a sloped surface of the railroad tie; and a reinforcing plate comprising a groove on a sloped surface of the reinforcing plate, which corresponds to the sloped surface of the railroad tie, wherein the reinforcing plate is coupled with the railroad ties by inserting the protrusion into the groove and opposing the sloped surface of the reinforcing plate to the sloped surface of the railroad tie. | 06-30-2011 |
| 20120248215 | RAILROAD TIE - An improved railroad tie comprises a monolithic elongate tie body divided into a pair of end sections and a narrow mid section interconnecting the pair of end sections. Further, the top surface of each end section divided into a proximal and distal surface sections interconnected by a rail seat section whereon a rail is fixedly mounted. The proximal and distal surface sections slope downwards, in opposing directions, as they extend longitudinally from the rail seat section and connect the top surface of the mid section and the extreme lateral edge of the top surface of the end section respectively. The mid section is of uniform trapezoidal cross-section. The railroad tie further comprises a plurality of steel rebars cast within the tie body. | 10-04-2012 |
| 20140027525 | BALLAST ANTI-FLIGHT RAILROAD SLEEPER - A ballast anti-flight sleeper characterized by having on the upper face two surfaces endowed with sufficient inclination as to prevent the accumulation of ballast over this side of the sleeper, with this geometric topology being the main claim; the fundamental elements in the same figure: track ( | 01-30-2014 |
| 238055000 | Two-part | 1 |
| 20160017544 | SLEEPER BLOCK UNIT FOR RAILWAY TRACK SYSTEMS - The sleeper block unit ( | 01-21-2016 |
| 238067000 | T-shape | 1 |
| 238069000 | Inverted | 1 |
| 20160194834 | RAILROAD TIE AND RAILROAD COMPRISING SUCH A RAILROAD TIE | 07-07-2016 |
| 238083000 | Nonmetallic | 33 |
| 20080315002 | Fixed Carriageway for Rail Vehicles - Fitted carriageway for rail vehicles having rails fixed on sleepers, which are supported by a structure engineered in concrete or a concrete composite, in which case the sleepers are embedded in the structural concrete of the engineered structure or in a protective concrete layer or are mounted direct on the structural concrete or the protective concrete layer. | 12-25-2008 |
| 238084000 | Plastic compound | 32 |
| 20080251594 | Method for restoring used railroad ties and the restored railroad ties formed thereby - This invention provides a method for restoring at least one means defining a railroad spike hole located in a used railroad tie. In this way, the restored railroad tie can be reused in subsequent rail replacement operations. The restored railroad tie is capable of having a railroad spike penetrate and be retained within the confines of the restored railroad spike hole without substantial bending problems. The used railroad tie provided has at least one spike hole located therein. In each the means defining a railroad spike hole is formed a polymeric plug. The polymeric plug comprises a polymeric plug formed of a polymeric material including a plurality of flexible, readily deformable micro-inclusions which allow the formation of spike insertion pathways that track the insertion forces of the railroad spike as it is driven into a material thereby facilitating introduction of the railroad spike into said polymeric plug. The polymeric plug is capable of penetration by and retention of the railroad spike there within. | 10-16-2008 |
| 20090242655 | RAILROAD TIE THAT OBVIATES THE NEED FOR A TIE PLATE - A plastic or polymer composite railroad tie, which includes at least one rail seat bordered on at least one side by a raised portion of the tie. | 10-01-2009 |
| 20100219257 | COMPOSITION AND METHOD FOR THE PRODUCTION OF RAILWAY TIES - Durable, weather and an insect-resistant railway ties are fabricated by the co-extrusion into a die of at least one mixture comprising asphalt binder and aggregate and recycled plastic, optionally strengthened by fillers such as glass fibre or KEVLAR. | 09-02-2010 |
| 20110297751 | THERMOSET COMPOSITE MATERIAL AND STRUCTURAL COMPONENT AND METHOD OF MAKING THE SAME FROM ENGINEERED RECYCLED RUBBER POWDER - A thermoset composite material that my used in the fabrication of structural components including railroad ties comprise a substantially homogeneous blend of an amount of vulcanized rubber particles including a predetermined ratio of different particles sizes, and a thermoset elastomeric binding agent added to the vulcanized rubber particles. The blend may comprise about 30% to about 97% by weight of the vulcanized rubber particles, and the blend is subjected to compression molding at a predetermined temperature and pressure for a resident time period forming the composite material. The ratio of different rubber particle sizes is selected so that the composite material has a desired density or is within a range of desired densities | 12-08-2011 |
| 20120091215 | COATED CONCRETE RAILROAD-TIES AND METHODS FOR MAKING SAME - A concrete railroad-tie having a radiation-cured coating covering at least 5% of the exterior surface and a having a median thickness between 0.005 inches and 0.125 inches. The coating comprises the reaction product of radiation curable oligomers selected from the group consisting of epoxy acrylates, urethane acrylates, polyester acrylates, and combinations thereof. Method of providing the same. | 04-19-2012 |
| 20120104110 | Recyclable Plastic Structural Articles And Method Of Manufacture - The plastic structural article includes an elongated tubular shell having opposed end sections, a middle section therebetween and an interior cavity. The interior cavity has a foam core situated therein. The foam core comprises steam expandable polymer beads which when expanded substantially fill the interior cavity. | 05-03-2012 |
| 20120160924 | FASTENING RAILWAY RAILS - In a concrete railway rail foundation ( | 06-28-2012 |
| 20120181343 | PRESTRESSED CONCRETE SLEEPER AND METHOD FOR TRANSPORTING AND INSTALLING A SWITCH HAVING PRESTRESSED CONCRETE SLEEPERS - The invention relates to a prestressed concrete sleeper, having at least two sleeper sections that can be coupled or are coupled rigidly by a connection device embedded in the sleeper heads, wherein the sleeper sections each comprise a concrete in the region adjacent to the connection device which has a higher rigidity than the concrete in the other regions | 07-19-2012 |
| 20120187203 | SEALING PLATE FOR USE WITH RAIL CLIP ANCHORING DEVICE - A sealing plate ( | 07-26-2012 |
| 20130193222 | ELASTIC PAD FOR CONCRETE ELEMENTS ON WHICH RAILS OF A RAILWAY REST - Elastic pad with a concrete element on which rails of a railway rest, whereby the elastic pad includes a fixing mat and an elastic mat, the fixing mat being provided with standing filaments that are at least partially embedded in the concrete element. | 08-01-2013 |
| 20140042235 | METHOD FOR MANUFACTURING A RESILIENT RAIL SUPPORT BLOCK ASSEMBLY - A rail support block assembly includes a resilient member and a moulded block having a top, a bottom and peripheral wall. The block is adapted for fastening one or more rails on the top. The prefabricated resilient member has an outer tray and inner tray arranged within the outer tray, and includes a resilient intermediate structure between the trays. The block is moulded in a block mould into with the mouldable material is introduced and allowed to harden. The block is fixed in the inner tray to extend under the bottom of the block and along a lower region of the peripheral wall. The resilient member may form a part of the block mould, so that a mould member combined with the resilient member delimit the mould for the block. The mouldable material is introduced and adheres directly to the inner tray of the prefabricated resilient member. | 02-13-2014 |
| 20140110491 | RECYCLABLE PLASTIC STRUCTURAL ARTICLES AND METHOD OF MANUFACTURE - The plastic structural article includes an elongated tubular shell having opposed end sections, a middle section there between and an interior cavity. The interior cavity has a foam core situated therein. The foam core comprises steam expandable polymer beads which when expanded substantially fill the interior cavity. The bead and shell are of a similar plastic composition enabling the articles to be reground and recycled. An apparatus for forming the articles and an associated method of manufacture are also disclosed. | 04-24-2014 |
| 20160002862 | HIGH STRENGTH, INTEGRALLY PRE-STRESSED MONOBLOCK CONCRETE CROSSTIE WITH OPTIMAL GEOMETRY FOR USE IN BALLASTED RAILWAYS - A monoblock concrete crosstie for railway tracks that achieves a high performance in operation includes a steel structure that is formed from ultra-resistant high strength steel plates embedded in a concrete element and having pre-stressed cold rolled wires with ends that form button head knots which are anchored to the steel plates. A faceted geometry allows optimal material usage and in turn increases the crosstie-ballast interlocking and stability with respect to the support surface. | 01-07-2016 |
| 238085000 | Internal reinforcements | 19 |
| 20080265047 | RAILWAY TIE OF NON-HOMOGENEOUS CROSS SECTION USEFUL IN ENVIRONMENTS DELETERIOUS TO TIMBER - Disclosed herein is a railroad tie comprising a core comprising wood or a wood product, and a first sleeve encapsulating the core, wherein the first sleeve comprises at least one of the group consisting of plastic, plastic-composite, or non-plastic polymers. A second sleeve may additionally encapsulate the first. In a preferred embodiment, the first sleeve is comprised primarily of poly ethylene terephthalate, and the second sleeve is comprised primarily of high density poly ethylene. | 10-30-2008 |
| 20090032607 | Reinforced Railroad Tie - A track for a vehicle comprising at least one rail, a plurality of elongated ties supporting the rail, and a fastener for holding the rail to the ties is provided. At least one tie used in the track comprises a body formed at least partially of polymeric material, and an elongated reinforcement encapsulated within the body, the reinforcement having a top section having a top surface, a bottom section having a bottom surface, and a support section connecting the top section and the bottom section, the bottom section having a greater weight than the top section. | 02-05-2009 |
| 20100012742 | RAILWAY TIE USING STRAIN-HARDENING BRITTLE MATRIX COMPOSITES - Railway tie is based upon a fiber-reinforced brittle matrix composite material. The composite material is isotropic, demonstrating pseudo-strain hardening behavior in uniaxial tension, and material ductility by design, not relying on reinforcing bars or mesh embedded within concrete or other brittle cementitious matrices for durability, abrasion resistance, or crack width control. Reinforcing bars or mesh, pretensioned or otherwise, may be used within the tie to control the load capacity and load-deformation response. The properties of this fiber-reinforced brittle matrix composite material are adjusted to preferably work with casting, injection molding, or extrusion manufacturing methods. | 01-21-2010 |
| 20100170956 | Railroad cross tie and method of manufacture - A railroad cross tie having an inner core with at least one longitudinally extending metallic reinforcing member and an outer casing. The cross tie includes first and second end caps. The first end cap is disposed proximate a first end of the inner core and the second end cap is disposed proximate a second opposite end. One embodiment of the cross tie includes an expansion gap longitudinally disposed between the first and second end caps. Longitudinal dimensions of the expansion gap varies in response to differential thermal expansion between the inner core and the outer casing. In other embodiments, the end caps are mechanically interlocked with the inner core and the outer casing overlays a portion of the end caps. The disclosed structures securely and reliably attach the end caps to the cross tie. A method of manufacturing cross ties is also disclosed. | 07-08-2010 |
| 20110155820 | COMPOSITE STRUCTURE FOR RAILROAD TIES AND OTHER STRUCTURAL MEMBERS AND METHOD FOR THEIR MANUFACTURE - A laminated 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 securedly engaged at each end of the composite, being secured to both the wood core and sleeve. The bottom and side surfaces of the sleeve are characterized by longitudinal grooves or slots for engagement with a railroad bed. | 06-30-2011 |
| 20120067966 | TIRE TREAD RAILROAD TIE - Re-cycled tire treads are laminated into stacks and attached to a reinforcement element which has a first portion which provides increased compressive strength and a second portion which provides increased torsional and bending strength. Several embodiments with reinforcing elements ranging from T-bars, to I-beams to box beams, with variations including corrugated flanges. Pre-drilled holes can be provided in the flanges to facilitate insertion of the spikes. While steel-belted tires are preferred for use in creating stacks, provisions are made to ensure electrical isolation of the two rails to permit transmission of data thereby. The railroad tie can have electronic signaling hardware built-in by placing sensors and related circuitry between adjacent plies in a laminated stack. | 03-22-2012 |
| 20120187204 | RESTORING AND RECYCLING RAILROAD TIES - A method for restoring and reusing railroad ties and the resulting product are disclosed. According to the method, otherwise spent wooden ties are sorted as to their apparent suitability for providing a core for reuse. Those found unsuitable are discarded, while those found to be suitable are milled or trimmed about their dimensions to define a suitable core. That core is banded about a transverse perimeter and then submitted to a reaction injection molding process by which urethane or other suitable polymers impregnate the various voids, holes and cracks in the core, bond with the bands, and define a finish unit having the overall size and configuration of previously known railroad ties. The encapsulated product is then capped or plugged at the ends to ensure that the resulting product is impervious to penetration by the environment. | 07-26-2012 |
| 20120286056 | LONGITUDINAL SLEEPER AND DAMPING RAILWAY SYSTEM THEREOF - A longitudinal sleeper and a damping railway system thereof are provided. The longitudinal sleeper comprises a pair of longitudinal prestressed concrete beams ( | 11-15-2012 |
| 20120325921 | SLEEPER FOR SUPPORTING RAILS - A sleeper for supporting rails within a section of track for rail vehicles is provided, wherein the sleeper has elongated reinforcing elements extending along a longitudinal axis of the sleeper and is produced as a solid material sleeper having a cavity which extends between the reinforcing elements and from at least one outer face of the sleeper into the interior of the sleeper, and wherein the sleeper is designed for use with at least two different measurement value pick-up systems, wherein one of the measurement value pick-up systems is a temperature measurement value pick-up system having an infrared sensor which is accommodated by insertion into the cavity. | 12-27-2012 |
| 20140175185 | THERMOSET COMPOSITE MATERIAL AND STRUCTURAL COMPONENT AND METHOD OF MAKING THE SAME FROM ENGINEERED RECYCLED RUBBER POWDER - A thermoset composite material and composite railroad crosstie fabricated from the thermoset composite material that comprises a substantially homogeneous blend of an amount of vulcanized rubber particles, polyurea binding agent and urea melamine. The thermoset composite material may also contain a granulated silica material. The thermoset composite material may comprise about 30% to about 50% by weight of the vulcanized rubber particles, and it is subjected to compression molding at a predetermined temperature and pressure for a resident time period forming the composite railroad crosstie. The thermoset composite material and railroad crosstie may further comprise a fibrous glass material in the form of unbundled fibers and/or one more glass mats encapsulated within the thermoset composite material. In addition or alternatively, an elongated core insert may be encapsulated in the thermoset composite material. | 06-26-2014 |
| 20150292164 | Structure for Railroad Ties Having Data Acquisition, Processing and Transmission Means - 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. The core may also be manufactured of a wood or other natural fiber giving the core a desired flex modulus to provide for better control and serviceability of associated rails and railway cars. | 10-15-2015 |
| 20150292165 | Restoring and Recycling Railroad Ties - A method for restoring and reusing railroad ties and the resulting product are disclosed. According to the method, otherwise spent wooden ties are sorted as to their apparent suitability for providing a core for reuse. Those found unsuitable are discarded, while those found to be suitable are milled or trimmed about their dimensions to define a suitable core. That core is banded about a transverse perimeter and then submitted to a reaction injection molding process by which urethane or other suitable polymers impregnate the various voids, holes and cracks in the core, bond with the bands, and define a finish unit having the overall size and configuration of previously known railroad ties. The encapsulated product is then capped or plugged at the ends to ensure that the resulting product is impervious to penetration by the environment. | 10-15-2015 |
| 20150308051 | COMPOSITE RAILWAY SLEEPER - A composite railway sleeper ( | 10-29-2015 |
| 20160002863 | HIGH STRENGTH, INTEGRALLY PRE-STRESSED MONOBLOCK CONCRETE CROSSTIE WITH OPTIMAL GEOMETRY FOR USE IN BALLASTED RAILWAYS - A monoblock concrete crosstie for railway tracks that achieves a high performance in operation includes a steel structure that is formed from ultra-resistant high strength steel plates embedded in a concrete element and having pre-stressed cold rolled wires with ends that form button head knots which are anchored to the steel plates. A faceted geometry allows optimal material usage and in turn increases the crosstie-ballast interlocking and stability with respect to the support surface. | 01-07-2016 |
| 20160024720 | THERMOSET COMPOSITE MATERIAL AND STRUCTURAL COMPONENT AND METHOD OF MAKING THE SAME FROM ENGINEERED RECYCLED RUBBER POWDER - A thermoset composite material and composite railroad crosstie fabricated from the thermoset composite material that comprises a substantially homogeneous blend of an amount of vulcanized rubber particles, polyurea binding agent and urea melamine. The thermoset composite material may also contain a granulated silica material. The thermoset composite material may comprise about 30% to about 50% by weight of the vulcanized rubber particles, and it is subjected to compression molding at a predetermined temperature and pressure for a resident time period forming the composite railroad crosstie. The thermoset composite material and railroad crosstie may further comprise a fibrous glass material in the form of unbundled fibers and/or one more glass mats encapsulated within the thermoset composite material. In addition or alternatively, an elongated core insert may be encapsulated in the thermoset composite material. | 01-28-2016 |
| 20160160449 | Structure for Railroad Ties Having Data Acquisition, Processing and Transmission Means - 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. The core may also be manufactured of a wood or other natural fiber giving the core a desired flex modulus to provide for better control and serviceability of associated rails and railway cars. | 06-09-2016 |
| 20160168802 | Restoring and Recycling Railroad Ties | 06-16-2016 |
| 20160251807 | COMPOSITE RAIL TIE APPARATUS AND METHOD | 09-01-2016 |
| 238091000 | Rods | 1 |
| 20140263683 | COMPOSITE RAILROAD TIES AND METHODS OF PRODUCTION AND USES THEREOF - The invention provides novel railroad ties manufactured from novel composite materials that possess excellent physical and performance characteristics matching or exceeding existing concrete RRTs. The RRTs of the invention can be readily produced from widely available, low cost raw materials by a process suitable for large-scale production with improved energy consumption and more desirable carbon footprint and minimal environmental impact. | 09-18-2014 |
| 238104000 | End closures | 1 |
| 20120187205 | Rehabilitation of discarded wooden railroad ties having disabling cracks in the ends of the ties - Apparatus and methodology are disclosed pertaining to selecting from a stockpile of used and discarded ties those which can be restored for a second use, removing accumulated scale from the selected used ties, redimensioning the selected ties to a usable smaller size, filling and sealing tie end cracks with a suitable filler, transversely compressing the ties to substantially close the adhesive-filled cracks, applying a permanent fastener to retain the compressed state of the closed and sealed tie cracks and externally treating the fastened ties with pesticide and anti-rotting composition or compositions. | 07-26-2012 |
| 238107000 | Insulation | 1 |
| 20100147967 | RAIL INSULATORS - Improved shoulder insulator for a rail seat assembly which enables the rail seat to be pre assembled at the rail tie fabrication plant into a preloaded position where a rail can be laid on the tie on site. On site the rail clips can be moved to the loaded position after the rail is placed in position. The rail seat includes a concrete rail tie; a pair of rail clip support shoulders cast in place in said rail tie each said shoulder having a rail face between its external sides; a pair of shoulder insulators each shaped to lie against the rail face of the rail shoulder; a pair of rail clips each having a base section adapted to seat within the rail clip support shoulder and a toe section adapted to seat on the rail base, the toe section comprising a pair of bifurcated arms extending from said base section and being bent in a curve so that the toes lie adjacent but beyond the base; a pair of toe insulators each adapted to fit about the toe of the rail clip to insulate the clip from the rail base; the arrangement being such that when the rail clip is in the preloaded position the toe insulator and the toe of the clips do not project beyond the face of the shoulder insulator so that a rail can be laid between the rail shoulders and their associated insulators. The shoulder insulator is shaped to lie against the rail face of the rail shoulder level with the gate of the shoulder and abutting the location flange and incorporating side arms that slip over the external retention rib of the shoulders which is dimensioned so that when the shoulder insulator top is pulled toward the rail and lifted up, the side arms clear the retention clips and the top edge of the shoulder insulator post clears the front of the toe insulator. | 06-17-2010 |
