Addlestone, United Kingdom
Addlestone, United Kingdom

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In an assembly comprising a first railway rail side post insulator and a railway rail clip anchoring device (3), for retaining a resilient railway rail fastening clip (6), which device (3) is configured to support the first railway rail side post insulator (1), the first railway rail side post insulator (1) is configured to provide an electrically-insulating load bearing face (10) between an upright side face (21 A) of a foot (21) of a railway rail (2) and upright load bearing faces (301, 302, 303, 304) of a railway rail clip anchoring device (3) located adjacent to the rail foot (21), the electrically-insulating load bearing face (10) being provided by an outer face of a wall (100) of the insulator. The insulator further comprises a member (110), joined to an inner face (12) of the wall (100), which member (110) has a top surface (11) which extends in a substantially perpendicular direction with respect to the load bearing face (10) to a depth (do) from the inner face of the wall (100) which is greater than or substantially equal to a depth (dw) of the wall in the said direction. The railway rail clip anchoring device (3) has upright load bearing faces (301, 302, 303, 304), comprising front wall faces (301, 303, 304) configured for location adjacent to the rail foot (21), and an upper central face (302) which is offset from the front wall faces (301, 303, 304) by an offset distance (D) which is between a tenth and a half of the depth (D0) of the anchoring device (3) in a direction substantially perpendicular to the front wall faces (301, 303, 304), and an upwardly-facing surface (31) of the anchoring device (3) which extends from the upper central face (302) to provide a shelf portion (31) for receiving part (43) of the first railway rail side post insulator (1).


Patent
Pandrol Ltd | Date: 2016-12-15

A rail pad can have a major face forming a railseat portion on which a foot of a railway rail sits when the pad is in use, the railseat portion having opposite side edges to at least part of each of which a respective upstanding portion of the pad can be connected, wherein the pad does not have any part which extends laterally from the railseat portion in a same plane as the railseat portion. The respective upstanding portion can be connected to a projection of the rail pad which extends laterally from the respective upstanding portion such that the projection can be vertically spaced from, and does not overhang, the railseat portion, the projection spaced from ends of the respective upstanding portion such that the projection can be configured to interlock with a corresponding opening in a front part of one of the railway rail clip anchoring devices.


Grant
Agency: European Commission | Branch: FP7 | Program: CP-IP | Phase: SST.2010.1.1-3. | Award Amount: 8.16M | Year: 2011

Ground vibration, effected by rail services, is an important environmental concern, affecting European citizens nearby any rail infrastructure. Surveys show that many Europeans are subjected to annoying levels of feelable vibration and vibration-induced noise. Although solutions are available for track in tunnels, tracks at grade are a much more extensive problem even for vibration-induced noise. However, solutions for tracks at grade are lacking: for some problems currently no feasible solutions at reasonable cost are available. A group of railway operators, infrastructure managers, infrastructure and rolling stock manufacturers, and construction companies, end users of vibration mitigation technology, have gathered, to propose a major project for Railway Induced Vibration Abatement Solutions (RIVAS). They aim at providing tools and methods to reduce vibration below the threshold of annoynace and induced noise below background levels by 2013. The group includes the expertise of research organisations and universities with specialist laboratory and theoretical modelling facilities. The issues are treated in a holistic way with the focus on reducing the annoyance to lineside residents. The project examines all vibration effects and aspects of the system: vehicle, track, propagation, freight and high-speed rail services. WP1 establishes the test procedures to monitor and control the performance of vibration mitigation measures under realistic conditions WP2 develops and evaluates mitigation measures based on reducing the excitation of vibration at the vehicletrack interface by improved maintenance WP3 develops and evaluates mitigation measures for ballasted and slab tracks WP4 will develop and evaluate mitigation measures based on sub-grade improvement and ground barriers within the railway infrastructure WP5 addresses the impact of the vehicle Each of the solutions is to be validated with field tests on the major European rail networks represented in RIVAS


Patent
Pandrol Ltd | Date: 2013-08-30

This invention relates to an anchoring device for use in retaining a railway rail fastening clip, the device comprising a stem for embedding in a rail support member, a head extending from the stem and comprising a generally hook-shaped portion for extending over a portion of the clip to effect retention and terminating at an end apart from the stem, and wherein in use, said end terminates at a sealing plate for bridging the end of the hook-shaped portion and the stem. An associated anchoring device assembly and railway rail fastening assembly are also disclosed.


Patent
Pandrol Ltd | Date: 2013-04-23

A resilient railway rail fastening clip (3) has successive first to seventh portions (31 to 37) where, when the clip (3) is in a non-operative configuration, the first and seventh portions (31, 37) of the clip (3) form leg portions which lie in a first plane (P), the second and sixth portions extend substantially away from and above the first plane (P), at least parts of the third and fifth portions (33, 35) extend towards and above the first plane (P) such that the longitudinal axes of the third and fifth portions (33, 35) lie substantially in a second plane (R), different from the said first plane (P), which second plane (R) intersects the first plane (P) at a first acute angle , and the fourth portion (34) extends substantially in or below the said first plane (P) such that the longitudinal axis of the fourth portion (34) lies substantially in a third plane (Q) which is different to the said second plane (R) and intersects the said first plane (P) at a second acute angle , where 0<. A rail pad (4) for use in a sleeper recess (10) has a railseat portion having opposite side edges (43) to which upstanding portions (44) are connected. Each upstanding portion (44) is connected to a projection (45A; 45B) which extends laterally from the upstanding portion (44) such that it is vertically spaced from, and does not overhang, the rail seat portion (42), the said projection (45A, 45B) extending along only part of the length of the upstanding portion (44) at a location along the length of the upstanding portion (44) which is spaced from ends (44a) thereof.


Patent
Pandrol Ltd | Date: 2015-06-26

A fastening system or apparatus for securing a rail to the underlying railroad tie includes a pad, two insulators attached to the pads and two shoulders attached to the ties. An interference fit is formed between the insulators and the shoulders to capture the pad between the shoulders. The insulators are pre-attached to the pad. The mating protrusions of the shoulders and pad allows for ease of insertion such that the pad assembly can be shipped together with the underlying tie.


Patent
Pandrol Ltd | Date: 2015-11-18

A rail pad (4) for use in a sleeper recess (10) has a railseat portion having opposite side edges (43) to which upstanding portions (44) are connected. Each upstanding portion (44) is connected to a projection (45A; 45B) which extends laterally from the upstanding portion (44) such that it is vertically spaced from, and does not overhang, the rail seat portion (42), the said projection (45A, 45B) extending along only part of the length of the upstanding portion (44) at a location along the length of the upstanding portion (44) which is spaced from ends (44a) thereof.


Patent
Pandrol Ltd | Date: 2012-06-27

An anchoring device for use in a railway rail fastening assembly which employs a resilient railway rail fastening clip to fasten a railway rail, comprises a body having a front portion, which is configured to provide a first load bearing surface extending alongside the rail foot when the device is in use, and first and second side faces, respectively located on opposite sides of the body and configured to extend transversely away from the first portion. The device comprises first and second projecting portions, the first projecting portion extending outwardly from the first side face of the body and providing a first additional load bearing surface which is set back from the first load bearing surface, and the second projecting portion extending outwardly from the second side face of the body and providing a second additional load bearing surface which is set back from the first load bearing surface.


A tie plate is formed with a profile defining two parallel protrusions with bores for receiving the respective ends of two clips. The two clips engage the flange of a rail to secure the rail to the plate, and therefore, to tie disposed below the plate. Since the protrusions are made integrally with the the plate, the resulting tie plate is able to support the rail securely even in the presence of large forces and/or twisting moments on the rail resulting from a train passing over the plate.


Patent
Pandrol Ltd | Date: 2014-01-24

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.

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