PANDROL LIMITED Patent applications |
Patent application number | Title | Published |
20140061323 | COMPONENTS OF A RAILWAY RAIL FASTENING ASSEMBLY - 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. | 03-06-2014 |
20130306747 | RAILWAY RAIL FASTENING CLIP AND INSULATOR - In a railway rail fastening clip | 11-21-2013 |
20130074559 | METHODS OF MANUFACTURING A RESILIENT RAIL CLIP - A method of manufacturing a resilient rail clip comprises bending a rod, made of metal having a hardness value falling within a known hardness value range, into a predetermined shape and then subjecting the bent rod to a cold setting process in order to induce in the bent rod a predetermined amount of permanent set (S). One cold setting process comprises applying a first load (F | 03-28-2013 |
20120318881 | RAILWAY RAIL FASTENING APPARATUS - A railway rail fastening apparatus has a baseplate for receiving a railway rail to be fastened thereto and baseplate securing elements for securing the baseplate to a baseplate seat area of a concrete railway foundation. The baseplate securing elements carry first and second fastening assemblies configured for location on the concrete rail foundation on opposite sides of the baseplate seat area. Each of the first and second fastening assemblies including fixing member having a first part that extends from the baseplate member for retention within the concrete rail foundation. Only the fixing member of one fastening assembly includes a screw-threaded fastener. | 12-20-2012 |
20120187207 | RAILWAY RAIL PAD - A railway rail pad ( | 07-26-2012 |
20120187203 | SEALING PLATE FOR USE WITH RAIL CLIP ANCHORING DEVICE - A sealing plate ( | 07-26-2012 |
20120181344 | INSULATOR FOR RAILWAY FASTENING CLIP AND RAILWAY RAIL FASTENING CLIP FOR USE THEREWITH - An electrical insulator for use with a rail fastening clip comprises a contact member providing on one side a substantially flat rail contact surface for contacting a foot of a rail and on the opposing side a clip contact surface for contacting a rail bearing surface of a bearing portion of the clip, the insulator also having retaining means for retaining the insulator on the clip in such a way as to allow rotation of the insulator about a longitudinal axis of the bearing portion of the clip. The insulator has stop portions for limiting such rotation about the longitudinal axis of the bearing portion of the clip to a desired extent. The clip contact surface of the insulator is convex, in a vertical plane which is perpendicular to the longitudinal axis of the bearing portion of the clip, such that, when the insulator is attached to a clip having a flat rail bearing surface, a contact region between the flat rail bearing surface of the clip and the clip contact surface of the insulator is linear. The insulator is rockable about the linear contact region within the extent defined by the stop portions such that, when the rail contact surface of the insulator contacts the surface of a rail foot, the angle of the rail contact surface can conform to the angle of the rail foot surface. A rail fastening clip, suitable for use with the insulator and of the kind driven onto a rail in a direction which is parallel to a longitudinal axis of the rail, has a bearing portion having a flat rail bearing surface, wherein a detent, extending laterally with respect to the longitudinal axis of the bearing portion, is formed in the flat rail bearing surface, at a location spaced from a free end of the bearing portion of the clip, for engaging a corresponding abutment surface of the insulator to be retained on the rail bearing portion of the clip. | 07-19-2012 |
20120160924 | FASTENING RAILWAY RAILS - In a concrete railway rail foundation ( | 06-28-2012 |
20100181386 | COMPONENTS FOR RAIL FASTENING ASSEMBLY - A component for use in a rail fastening assembly, the assembly comprising a railway rail fastening clip having a first part for bearing on a railway rail and a railway rail clip anchoring device for retaining the railway rail clip, comprises a first portion adapted to receive a lateral load from the rail when located between a substantially upright face of the rail clip anchoring device and the side of the foot of an adjacent railway rail when the assembly is in use. The component further comprises a second portion for receiving a second bearing part of the railway rail clip. The first portion and the second portion of the component are spaced apart and interconnected by a connection portion. | 07-22-2010 |
20090218410 | ANCHORING DEVICES FOR RAIL FASTENING CLIPS - A shoulder for use in retaining a railway rail fastening clip, comprising two interconnected spaced-apart walls, between which a portion of the clip to be retained is held when the shoulder is in use, and clip-engaging means, supported by the walls, for engaging a portion of the clip to be retained, does not have any feature or surface which engages the surface of that clip portion which faces downwardly when the clip is in use. Alternatively, or in addition, none of the contact regions, at which the device engages the rail clip, can be seen when the anchoring device is viewed from above when in its operative orientation and all of the contact regions can be seen when the anchoring device is viewed from below when in the operative orientation. Alternatively, or in addition, all the contact regions lie substantially at the same horizontal distance from the edge of the rail foot when measured perpendicularly to the axis of the rail and in the plane of the rail foot. | 09-03-2009 |
20090065599 | RAILWAY RAIL FASTENING CLIP - A substantially M-shaped rail clip is disclosed in which the clip is substantially flat when in its non-operative configuration, and, when the clip is in an operative configuration, the toe of the clip lies substantially in a second plane and the legs of the clip lie substantially in a third plane, the second and third planes being non-parallel to one another. | 03-12-2009 |
20090045265 | SEALING PLATE FOR RAILWAY RAIL CLIP ANCHORING DEVICE AND SLEEPER MANUFACTURING METHOD - A sealing plate for use with a rail clip anchoring device having a head and a stem which extends from the head into a concrete sleeper when the anchoring device is in use, is adapted for extending over the underside of the head when the stem of the device is being set in a concrete sleeper, thereby to prevent ingress of concrete into the head of the device, and for being retained on the surface of the sleeper thereafter. A major face of the plate, which is uppermost when the sleeper is in use, is provided with at least one clip seat portion for receiving part of a rail clip. In a method of manufacturing a concrete sleeper with at least one embedded rail clip anchoring device, the floor of a mould, from which the sleeper is to be formed, is provided with an aperture through which the head of an anchoring device is inserted and before concrete is introduced into the mould the aperture is sealed off around its edges and around the underside of the head of the anchoring device by placing a sealing plate over the aperture on the floor of the mould, the plate overlapping and sealing around the edges of the aperture other than where the anchoring device is located and having a mating interface with the anchoring device such that a seal is formed therewith. | 02-19-2009 |