DESC:FIELD OF THE INVENTION

The present disclosure relates to rail track fastenings and more particularly relates to rail fastening assembly to mount a rail on a rail seat and transfer load from the rail to the rail seat.

BACKGROUND

Generally, railway routes majorly comprise rails, rail seats, fasteners, and ballasts. Traditionally, rails are coupled to the rail sleepers and/or underlying foundations using the fasteners. Moreover, rails include a horizontal flat top, a vertical flat component, and a horizontal base component. The rails are mounted on the rail sleepers and/or underlying foundations using the fasteners and/or fastening assemblies. Furthermore, the fasteners and/or fastening assemblies include rail clips, rail bolts, rail tie plates, rail pads, washers, and the like.

Fasteners and/or fastening assemblies play a vital role in holding rails and maintaining a stable position and transfer real time loads of running trains to the rail seats, rail sleepers, underlying foundations, bearers, tie plates and/or track slabs. Conventionally, the fasteners and/or fastening assemblies are coupled to the rails using the rails rail clips and mounted with rail bolts and washers assembled therewith. Furthermore, rail pads are stacked underneath of the rails to compensate noise and vibrations transferred from real time loads of running trains to rails. Additionally, fasteners and/or fastening assemblies also absorbs uneven forces from the running trains and transition of real time loads at curves, joints, diversions, and the like.

However, the conventional fasteners and/or fastening assemblies are susceptible to failures due to breakage of heating of conventional rail pads and rail clips. Advancements have been made to overcome the failure of conventional fasteners and/or fastening assemblies. Conventional fasteners and/or fastening assemblies have been engineered with elastomeric rail pads to sustain heat generated due to real time loads of running trains. Several rail clips have been designed and developed to overcome the failures and fractures of rail clips. However, the conventional fasteners and/or fastening assemblies are inefficient and ineffective in overcoming the failure of rail pads and rail clips due to inefficient structure of the rail pads and rail clips.

Therefore, in light of foregoing discussions, there is a need to overcome the limitations/drawbacks of the conventional fasteners and/or fastening assemblies.

SUMMARY
This summary is provided to introduce a selection of concepts, in a simplified format, that are further described in the detailed description of the invention. This summary is neither intended to identify key or essential inventive concepts of the invention and nor is it intended for determining the scope of the invention.

The present disclosure relates to a rail fastening assembly that provides a resilient and robust support to rails mounted on rail sleepers and/or underlying foundations. The provided rail fastening assembly include efficient clips and rail pads to sustain and/or maintain a stable position and transfer real time loads of running trains to the rail seats, rail sleepers, underlying foundations, bearers, tie plates and/or track slabs.

In aspect embodiments of the present disclosure provide rail fastening assembly to mount a rail on a rail seat and transfer load from the rail to the rail seat. The rail fastening assembly includes a composite rail pad assembly placed underneath of the rail to accommodate and transfer load from the rail to the rail seat. The composite rail pad assembly includes rail pads stacked together and adapted to mount the rail on the rail seat and transfer the load from the rail to the rail seat.

The rail fastening assembly includes a pair of angle plates disposed on each rail foot of both sides of the rail. Furthermore, each angle plate includes a first portion abutting the rail foot, a second portion opposite to the first end, and a longitudinal groove on a top surface of the angle plate.

The rail fastening assembly includes a pair of clips mounted on the pair of angle plates using threaded fasteners and adapted to secure the rail and transmit loads from the rail to the rail seat through the rail pads. Furthermore, each clip of the pair of the clips includes an attachment portion adapted to receive a threaded fastener and adapted to receive a preload or reaction from the threaded fastener.

The pair of clips include a pair of oppositely facing first portion seated on a rail foot on the rail and adapted to apply a pre-load or reaction from the threaded fastener to the rail foot. The pair of clips include a pair of bend portion extending from the pair of the first portion and adapted to undergo bending and torsion to transmit the load from the rail. The pair of clips include a pair of third portion extending from the pair of bend portion and adapted to experience bending and torsion to transmit the second portion of the load there through in response to the bending of the bend portion. The pair of clips include a fourth portion installed in the longitudinal groove extending from pair of the third portion. The fourth portion is adapted to transfer the load to the angle plate from the pair of third portion and transmit pre-load and rail lift loads from the attachment portion.

Embodiments of the present disclosure substantially eliminate or at least partially address the aforementioned problems in the prior art and enables to provide a rail fastening assembly that securely mounts the rail in a stable position withstanding the forces from the live loads and/or real time loads running trains. The rail fastening assembly includes the robust composite rail pad assembly that accommodates the live loads and/or real time loads of running trains. Furthermore, the rail fastening assembly also includes the pair of angle plates that facilitates a stable positioning of the pair of clips 118 to provide conversion and diversion at actuation and removal of loads.

To further clarify advantages and features of the present invention, a more particular description of the invention will be rendered by reference to specific embodiments thereof, which is illustrated in the appended drawings. It is appreciated that these drawings depict only typical embodiments of the invention and are therefore not to be considered limiting of its scope. The invention will be described and explained with additional specificity and detail with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

These and other features, aspects, and advantages of the present invention will become better understood when the following detailed description is read with reference to the accompanying drawings in which like characters represent like parts throughout the drawings, wherein:
Figure 1A illustrates an assembled view of the rail fastening assembly to mount the rail on the rail seat, according to an embodiment of the present disclosure;
Figure 1B illustrates a disassembled view of the rail fastening assembly to mount the rail on the rail seat, according to an embodiment of the present disclosure;
Figure 2A illustrates the composite rail pad, according to an embodiment of the present disclosure;
Figure 2B illustrates the hard rail pad, according to an embodiment of the present disclosure;
Figure 3 illustrates a corrugated steel plate, according to an embodiment of the present disclosure;
Figure 4 illustrates the pair of angle plates, according to an embodiment of the present disclosure;
Figure 5A illustrates a perspective view of the clip including a bending end, according to an embodiment of the present disclosure;
Figure 5B illustrates a top view of the clip, according to an embodiment of the present disclosure;
Figure 5C illustrates a side view of the clip, according to an embodiment of the present disclosure;
Figure 6A illustrates a perspective view of the clip including bush coupling ends, according to an embodiment of the present disclosure;
Figure 6B illustrates a top view of the clip, according to an embodiment of the present disclosure;
Figure 6C illustrates a side view of the clip, according to an embodiment of the present disclosure;
Figure 7A illustrates the pair of clips without a liner cum bush, according to an embodiment of the present disclosure;
Figure 7B illustrates the pair of clips without a liner cum bush, according to an embodiment of the present disclosure;
Figure 8 illustrates the clip depicting the bush coupling ends, according to an embodiment of the present disclosure;
Figure 9 illustrates the pair of clips coupled to the rail, according to an embodiment of the present disclosure;
Figure 10A illustrates an assembled view of the pair of clips coupled to the rail, according to an embodiment of the present disclosure; and
Figure 10B illustrates an exploded view of the pair of clips coupled to the rail, according to an embodiment of the present disclosure.

Further, skilled artisans will appreciate that elements in the drawings are illustrated for simplicity and may not have necessarily been drawn to scale. Furthermore, in terms of the construction of the device, one or more components of the device may have been represented in the drawings by conventional symbols, and the drawings may show only those specific details that are pertinent to understanding the embodiments of the present invention so as not to obscure the drawings with details that will be readily apparent to those of ordinary skill in the art having benefit of the description herein.

DETAILED DESCRIPTION OF FIGURES

For the purpose of promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended, such alterations and further modifications in the illustrated system, and such further applications of the principles of the invention as illustrated therein being contemplated as would normally occur to one skilled in the art to which the invention relates. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skilled in the art to which invention belongs. The system and examples provided herein are illustrative only and not intended to be limiting.
For example, the term “some” as used herein may be understood as “none” or “one” or “more than one” or “all.” Therefore, the terms “none,” “one,” “more than one,” “more than one, but not all” or “all” would fall under the definition of “some.” It should be appreciated by a person skilled in the art that the terminology and structure employed herein is for describing, teaching, and illuminating some embodiments and their specific features and elements and therefore, should not be construed to limit, restrict or reduce the spirit and scope of the present disclosure in any way.
For example, any terms used herein such as, “includes,” “comprises,” “has,” “consists,” and similar grammatical variants do not specify an exact limitation or restriction, and certainly do not exclude the possible addition of one or more features or elements, unless otherwise stated. Further, such terms must not be taken to exclude the possible removal of one or more of the listed features and elements, unless otherwise stated, for example, by using the limiting language including, but not limited to, “must comprise” or “needs to include.”

Whether or not a certain feature or element was limited to being used only once, it may still be referred to as “one or more features” or “one or more elements” or “at least one feature” or “at least one element.” Furthermore, the use of the terms “one or more” or “at least one” feature or element do not preclude there being none of that feature or element, unless otherwise specified by limiting language including, but not limited to, “there needs to be one or more...” or “one or more elements is required.”
Unless otherwise defined, all terms and especially any technical and/or scientific terms, used herein may be taken to have the same meaning as commonly understood by a person ordinarily skilled in the art.
Reference is made herein to some “embodiments.” It should be understood that an embodiment is an example of a possible implementation of any features and/or elements of the present disclosure. Some embodiments have been described for the purpose of explaining one or more of the potential ways in which the specific features and/or elements of the proposed disclosure fulfil the requirements of uniqueness, utility, and non-obviousness.
Use of the phrases and/or terms including, but not limited to, “a first embodiment,” “a further embodiment,” “an alternate embodiment,” “one embodiment,” “an embodiment,” “multiple embodiments,” “some embodiments,” “other embodiments,” “further embodiment”, “furthermore embodiment”, “additional embodiment” or other variants thereof do not necessarily refer to the same embodiments. Unless otherwise specified, one or more particular features and/or elements described in connection with one or more embodiments may be found in one embodiment, or may be found in more than one embodiment, or may be found in all embodiments, or may be found in no embodiments. Although one or more features and/or elements may be described herein in the context of only a single embodiment, or in the context of more than one embodiment, or in the context of all embodiments, the features and/or elements may instead be provided separately or in any appropriate combination or not at all. Conversely, any features and/or elements described in the context of separate embodiments may alternatively be realized as existing together in the context of a single embodiment.
Any particular and all details set forth herein are used in the context of some embodiments and therefore should not necessarily be taken as limiting factors to the proposed disclosure.
In an embodiment of the present disclosure, a rail fastening assembly to mount a rail on a rail seat and transfer load from the rail to the rail seat. The rail fastening assembly provides a resilient and robust support to rails mounted on rail sleepers and/or underlying foundations. Furthermore, the rail fastening assembly includes a composite rail pad assembly, a pair of angle plates and a pair of clips.

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

For the sake of clarity, the first digit of a reference numeral of each component of the present disclosure is indicative of the Figure number, in which the corresponding component is shown. For example, reference numerals starting with digit “1” are shown at least in Figure 1. Similarly, reference numerals starting with digit “2” are shown at least in Figure 2.

Figures 1A and 1B illustrate a rail fastening assembly 100 to mount a rail 102 on a rail seat 104, according to an embodiment of the present disclosure. Figure 1A depicts an assembled view of the rail fastening assembly 100 to mount the rail 102 on the rail seat 104. Figure 1A depicts a disassembled view of the rail fastening assembly 100 to mount the rail 102 on the rail seat 104.

The rail fastening assembly 100 includes a composite rail pad assembly 106 including rail pads stacked together and adapted to mount the rail 102 on the rail seat 104 and transfer the load from the rail 102 to the rail seat 104. Furthermore, the composite rail pad assembly 106 includes a composite rail pad 122 and a hard rail pad 123. The rail fastening assembly 100 also includes a pair of angle plates 108 disposed on each rail foot 110 of both sides of the rail 102. The rail fastening assembly 100 also includes a pair of clips 118 mounted on the pair of angle plates 108 using threaded fasteners 120 and adapted to secure the rail 102 and transmit loads from the rail 102 to the rail seat 104 through the rail pads 106. Furthermore, the threaded fasteners 120 include a cap washer 158 to couple the pair of clips 118 to the rail seat 104. The pair of angle plates 108 are supported with rail humps 1000 provides with the rail seat 104.

Throughout the present disclosure, the term “rail fastening assembly” as used herein refers to securing mechanisms, securing means, and the like used for holding rails on rail seats to withstand live loads such as running trains and transferring the loads from rails to rail seats. Furthermore, the rail fastening assembly 100 stated herein includes, but not limited to, clips, rail pads, screws, bolts, plates, washers, and the like. With respect to formation of railway tracks and routes, the rail fastening assembly 100 are provided on rail seat at linear tracks, joints, curves, diversions, junctions of railway tracks.

As depicted in Figures 1A, the composite rail pad 122 is disposed over the rail seat 104. The composite rail pad 122 includes a width equivalent to the rail seat 104 to cover the rail seat 104. Furthermore, the hard rail pad 123 is placed over the composite rail pad 122. Subsequently, the rail 102 in mounted on the hard rail pad 123 and the pair of angle plates 108 is disposed on each rail foot 110. The rail 102 includes the rail foot 110 that rests on the hard rail pad 123. The pair of angle plates 108 and the hard rail pad 123 are closely coupled using the pair of clips 118 mounted on the pair of angle plates 108 using threaded fasteners 120 and adapted to securely mount the rail 102 on the hard rail pad 123.

Figures 2A and 2B illustrate the composite rail pad assembly 106, according to an embodiment of the present disclosure. Figure 2A depicts the composite rail pad 122 and Figure 2B depicts the hard rail pad 123. The term “composite rail pad assembly” as used herein refers to a pair of pads configured to sustain live loads and/or real time loads of running trains. Furthermore, the composite rail pad assembly 106 is placed underneath of the rail 104 to transfer the loads from rail 102 to the rail seat 104.

Referring to Figure 2A, the composite rail pad assembly 106 includes a composite rail pad 122 adapted to mount the rail 102 on the rail seat 104 such that load is distributed uniformly from the rail 102 to the rail seat 104. The composite rail pad 122 as used herein refers to combination of pad layers stacked together to increase durability, ensure insulation that reduces heat flow and stability of the rail 102 on the rail seat 104.

The composite rail pad 122 includes a pair of rubber pads 138 having longitudinal slots 140 and holes 142 extending through a width of the composite rail pad 122 for the threaded fastener 120. The pair of rubber pads 138 as used herein refer pad layers composed of elastomers, polymers, and the like to provide flexible stability to the rail 102 mounted on the rail seat 104 through the composite rail pad 122. Furthermore, the pair of rubber pads 138 include identically similar pair of rubber pads 138 that includes longitudinal slots 140 formed in between the surface of the composite rail pad 122, and holes adapted to receive threaded fasteners 120 to couple the composite rail pad 122 using the pair of clips 118 mounted on the pair of angle plates 108. The fasteners used herein refers to threaded screws and/or nails used to secure the pair of angle plates 108 and the hard rail pad 123 are closely coupled using the pair of clips 118 mounted on the composite rail pad 122.

Figure 3 illustrates a corrugated steel plate 144, according to an embodiment of the present disclosure. The composite rail pad 122 includes a corrugated steel plate 144 sandwiched between the interconnected pair rubber pads 138 through holes in the wavy spring steel plate 144. The corrugated steel plate 144 as used herein refers to a metal strip made of corrugated steel sandwiched between the interconnected pair rubber pads 138 and include holes in the wavy spring steel plate 144 to secure the composite rail pad 122 connecting each other. In an embodiment, the composite rail pad 122 comprises a wavy plate made of spring steel 144 sandwiched between the pair rubber pads 138. Furthermore, the corrugated steel plate 144 provides robust support to the composite rail pad assembly 106 and securely hold the pair rubber pads 138 thereon.

Now, referring to Figure 2B, the composite rail pad assembly 106 includes a hard rail pad 123 sandwiched between the composite rail pad 122 and the rail 102 and adapted to attenuate higher rail frequencies. The hard rail pad 123 as used herein refers to rubber pads composed of hard polymers and/or hard elastic materials adapted to attenuate higher rail frequencies. As a matter of fact, the hard rail pad 123 is directly in contact with the rail 102 and therefore sustains high number of live loads and/or real time loads of the running trains. Therefore, the hard rail pad 123 are configured to attenuate higher rail frequencies, when in operation.

The hard rail pad 123 includes a pair of down projections 134 adapted to secure, the hard rail pad 123 to the composite rail pad 122, from the longitudinal movements. The pair of down projections 134 are provided at extreme ends to secure the hard rail pad 123 to the composite rail pad 122. The pair of down projections 134 are rectangular slots including a height equivalent to thickness of the hard rail pad 123 that extends downwards and rests on the composite rail pad 122, when in operation.

The hard rail pad 123 includes a pair of flanges 136 having upward projections adapted to allow lateral movement of the rail 102 with respect to the rail seat 104 and lock the pair of rail foot 110 on the hard rail pad 123. The pair of flanges 136 as used herein refers to rectangular slits provided at edges of the hard rail pad 123 that accommodates a width of the rail 102 with respect to the rail seat 104 and lock the pair of rail foot 110 on the hard rail pad 123. In an embodiment, the hard rail pad 123 is made of an elastic material.

Figure 4 illustrates the pair of angle plates 108, according to an embodiment of the present disclosure. The rail fastening assembly 100 includes the pair of angle plates 108 disposed on each rail foot 110 of both sides of the rail 102. The pair of angle plates 108 refers to coupling planks and/or slabs that mounts the rail foot 110 by receiving the threaded fasteners 120 through the pair of clips 118 on the rail foot 110 and the pair of angle plates 108. The pair of angle plates 108 includes a first portion 112 abutting the rail foot 110, a second portion 114 opposite to the first portion 112, and a longitudinal groove 116 on a top surface of the angle plate 108. The first portion 112 of each pair of angle plates 108 is subjected to receive the pair of flanges 136 on each side and rests on the composite rail pad 122. The second portion 114 thereby rests on the rail humps 1000 to support the securing of the rail 102 on the rail seat 104.

In an embodiment, each angle plate 108 includes a mounting shoulder 146 extending from a bottom surface of the angle plate 108 adapted to install the angle plate 108 on the rail seat 104. The mounting shoulder 146 are rectangular projections provided at a base of each angle plate 108 that rests on the composite rail pad 122. Furthermore, each angle plate 108 also includes a hole 148 extending between the top surface and the bottom surface and adapted to receive the threaded fastener. The first hole and the second hole are coaxial. The hole 148 is a circular opening provided to receive a threaded fastener 120 that secures that pair of clips 118 therein.

Each angle plate 108 also includes a lip 149 extending from the first portion 112 and mounted on the rail foot 110 and a plurality of longitudinal projections 150 adapted to be inserted in the longitudinal slots 140 of the composite rail pad 122. The lip 149 is configured to receive the pair of flanges 136 of the hard rail pad 123 and the lip 149 rests on the composite rail pad 122. The lip 149 is a protrusion extending from the mounting shoulder 146 and the first portion 112 and disposed on the rail foot 110. Furthermore, the lip 149 also acts as a support to accommodate the flexing of the pair of flanges 136 of the hard rail pad 123, when subjected to loads of the running trains.

Figures 5A, 5B, and 5C illustrate various views of the clip 118, according to an embodiment of the present disclosure. Figure 5A illustrates a perspective view of the clip 118 including a bending end 152. Figure 5B illustrates a top view of the clip 118. Figure 5C illustrates a side view of the clip 118.

Figures 6A, 6B, and 6C illustrate various views of the clip 118, according to an embodiment of the present disclosure. Figure 6A illustrates a perspective view of the clip 118 including bush coupling ends 154. Figure 6B illustrates a top view of the clip 118. Figure 6C illustrates a side view of the clip 118.

The pair of clips 118 are mounted on the pair of angle plates 108 using threaded fasteners 120 and adapted to secure the rail 102 and transmit loads from the rail 102 to the rail seat 104 through the rail pads 106. The term “pair of clips” as used herein refers to securing elements, attachment means and the like configured to secure the rail 102 and transmit loads from the rail 102 to the rail seat 104 through the rail pads 106. The pair of clips 118 may include, but not limited to, metal holders, coils, and the like to hold the rail 102 on the rail seat 104. In an instance, a width and a cross section of pair of clips 118 is uniform throughout the length.

The pair of clips 118 include an attachment portion 124 adapted to receive a threaded fastener 120 and adapted to receive a preload or reaction from the threaded fastener 120. The attachment portion 124 is a curved segment of the pair of clips 118 that receives threaded fastener 120 to secure the pair of clips 118 on the pair of angle plates 108. The attachment portion 124 is formed as a loop at a curved segment of the pair of clips 118.

The pair of clips 118 also include a pair of oppositely facing first portion 126 seated on a rail foot 110 on the rail 102 and adapted to apply a pre-load or reaction from the threaded fastener 120 to the rail foot 110. The first portion 126 is coupled to the rail foot 110 that secures the mounting of the rail 102 on the rail seat 104. The first portion 126 is provided with open cross section that includes a disintegrable open loop therebetween.

The pair of clips 118 also include a pair of bend portion 128 extending from the pair of the first portion 126 and adapted to undergo bending and torsion to transmit the load from the rail 102. The pair of bend portion 128 rests on the pair of angle plates 108 and adapted to converge and diverge based on the load and undergo bending and torsion to transmit the load from the rail 102. The pair of bend portion 128 provides resilient support to the pair of clips 118 and thereby to the rail fastening assembly 100.

The pair of clips 118 also include a pair of third portion 130 extending from the pair of bend portion 128 and adapted to experience bending and torsion to transmit the second portion of the load there through in response to the bending of the bend portion 128. The third portion 130 assists the pair of bend portion 128 while compensating the conversion and diversion based on the bending and torsion to transmit the second portion of the load there through in response to the bending of the bend portion 128.

The pair of clips 118 also include a fourth portion 132 installed in the longitudinal groove 116 extending from pair of the third portion 130. The fourth portion 132 is adapted to transfer the load to the angle plate from the pair of third portion 130 and transmit pre-load and rail lift loads from the attachment portion 124. The fourth portion 132 exerts pressure on the pair of angle plates 108 when loads transferred from the pair of third portion 130. Furthermore, the fourth portion 132 also includes a bend to rest on the pair of angle plates 108 and adapted to compensate the loads of the running trains on the rail 102. In one embodiment, pair of clips 118 also include a sixth portion 156 adapted to couple the fourth portion 132 to the attachment portion 124.

In an embodiment, the pair of clips 118 is made of a single piece steel rod of a resilient material, and a width of the clip 118 at the first portion 126 is equal to a width of the clip 118 at the fourth portion 132. Throughout the present disclosure, the pair of clips 118 are manufactured using resilient materials such as forged spring steel, corrugated steel and the like. In another embodiment, a width of the clip 118 between pair of third portion 130 is greater than a width of the clip 118 at the fourth portion 132 and greater than the width of the clip 118 at the first portion 126. The width of the clip 118 between pair of third portion 130 is relatively larger than the width of the clip 118 at the fourth portion 132 and relatively larger than the width of the clip 118 at the first portion 126.

In an embodiment, each clip 118 is adapted to assume a mounted position in which the clip 118 is mounted to the rail 102, and a parked position in which the clip 118 is dismounted from the rail 102. The pair of clips 118 facilitates an orientation of the clip 118 in the parked position is orthogonal to the orientation of the clip 118 in the mounted position. The pair of clips 118 deforms and regains the shape instantaneously on application and removal of loads and thereby increase a life span of each clip 118.

In an embodiment, each of the first portion 126 comprising bush coupling ends 154 having a male-female mating projections therein to rigidly couple the bush coupling ends 154. The bush coupling ends 154 include projections that couples the bush coupling ends 154 therein to securely mount the pair of clips 118 on the rail foot 110.

In another embodiment, each first portion 126 includes a bending end 152 forming a gap there between. As shown, the bending end 152 forms the gap that assists the conversion and diversion of the pair of pair of oppositely facing first portion 126.

In accordance with an embodiment, the clips 118 in Figures 5A-C and Figure 6A-C are similar with difference in closing ends. The clip 118 shown in Figure 5A includes bush coupling ends 154 having a male-female mating projections therein to rigidly couple the bush coupling ends 154. However, the clip 118 shown in Figure 6A includes the bending end 152 at each of the first portion 126 forming a gap there between.

Figure 7A illustrates the pair of clips 118 without a liner cum bush 300, according to an embodiment of the present disclosure. Figure 7B illustrates the pair of clips 118 without a liner cum bush 300, according to an embodiment of the present disclosure. As shown in Figures 6A-C, the clip 118 including bush coupling ends 154 includes the liner cum bush 300 in Figure 7B. The pair of clips 118 includes a liner cum bush 300 to provide insulated coupling to the pair of clips 118. The liner cum bush 300 is manufactured using elastic and insulation material to provide insulation at pair of clips 118 in contact with rail 102 to reduce heat accumulation therein. The pair of clips 118 including the liner cum bush 300 is coupled to the pair of angle plates 108 using the threaded fastener 120 to securely place the liner cum bush 300 at the rail foot 110 and the rest portion on the pair of angle plates 108.

Figure 8 illustrates the clip 118 depicting the bush coupling ends 154, according to an embodiment of the present disclosure. Furthermore, each of the first portion 126 includes the bush coupling ends 154 having a male-female mating projections therein to rigidly couple the bush coupling ends 154. The bush coupling ends 154 include projections that couples the bush coupling ends 154 therein to securely mount the pair of clips 118 on the rail foot 110. As shown in the Figure 7, the bush coupling ends 154 couple to each other by engaging male-female mating projections from the first portion 126 to the other first portion 126. In such a scenario the clip 118 forms a complete loop and provides resilient support to the rail fastening assembly 100.

Figure 9 illustrates the pair of clips 118 coupled to the rail 102, according to an embodiment of the present disclosure. As shown in Figure 5A-C, the clip 118 is coupled on the rail 102 to securely mount the rail 102 to the rail seat 104 using threaded fastener 120. The pair of clips 118 rests on the pair of angle plates 108 supported by the rail humps 1000.

In an embodiment, the threaded fasteners 120 are coupled to the pair of clips 118 through a cap washer 158 (as shown in Figure 1B) that provides insulation between threaded fastener 120 and pair of clips 118. The cap washer 158 as used herein refers to disc caps, hat washers and the like to secure the threaded fasteners 120 are coupled to the pair of clips 118 mounted on the pair of angle plates 108 and resting on the rail foot 110. The cap washer 158 may include rings, washer discs, and the like to secure the threaded fastener 120 and pair of clips 118 to composite rail pad assembly 106. In an instance, the cap washer 158 restricts a movement of the threaded fastener 120 in case of higher fluctuation of loads on the rail 102. Moreover, the cap washer 158 provides an interference fit of the threaded fasteners 120 to the pair of clips 118.

Figure 10A illustrates an assembled view of the pair of clips 118 coupled to the rail 102, according to an embodiment of the present disclosure. Figure 10B illustrates an exploded view of the pair of clips 118 coupled to the rail 102, according to an embodiment of the present disclosure. The pair of clips 118 shown herein refers to the clip 118 shown in Figures 6A-C. The rail fastening assembly 100 includes the composite rail pad assembly 106 including rail pads stacked together. Furthermore, the composite rail pad assembly 106 includes the composite rail pad 122 and the hard rail pad 123. The rail fastening assembly 100 also includes the pair of angle plates 108 disposed on of both sides of the rail 102. The rail fastening assembly 100 also includes a pair of clips 118 mounted on the pair of angle plates 108 using threaded fasteners 120 and adapted to secure the rail 102 and transmit loads from the rail 102 to the rail seat 104 through the rail pads 106.

Figure 11 illustrates a parking position of a clip 118 of the pair of clips 118, according to an embodiment of the present disclosure. As shown in Figure 11, the clip 118 with 90-degree rotation of clip for the parking and the assembly positions in a single action. In an instance the clip 118 may be transported from factory in parked position resulting in amenable for mechanized operation and save traffic block time for installation and renewal of rail tracks. The pair of angle plates 108 includes grooves 116 to guide the clip 118 for parking and operation position by just rotating clip by 90 degrees. Furthermore, the 90 degrees rotated clip 118 may include the liner cum bush 300 (as shown in Figure 7B) disposed on the bush coupling ends 154. The pair of clips 118 includes a liner cum bush 300 to provide insulation at pair of clips 118 in contact with rail 102 to reduce heat accumulation therein. The pair of clips 118 including the liner cum bush 300 is coupled to the pair of angle plates 108 using the threaded fastener 120 to securely place the liner cum bush 300 at the rail foot 110.

From the above embodiments, the present disclosure provides a rail fastening assembly 100 that securely mounts the rail 102 in a stable position withstanding the forces from the live loads and/or real time loads running trains. The rail fastening assembly 100 includes the robust composite rail pad assembly 106 that accommodates the live loads and/or real time loads of running trains. Furthermore, the rail fastening assembly 100 also includes the pair of angle plates 108 that facilitates a stable positioning of the pair of clips 118 manufactured from resilient materials to provide conversion and diversion at actuation and removal of loads. The liner cum bush 300 to provide insulated coupling to the pair of clips 118.

While specific language has been used to describe the present disclosure, any limitations arising on account thereto, are not intended. As would be apparent to a person in the art, various working modifications may be made to the method in order to implement the inventive concept as taught herein. The drawings and the foregoing description give examples of embodiments. Those skilled in the art will appreciate that one or more of the described elements may well be combined into a single functional element. Alternatively, certain elements may be split into multiple functional elements. Elements from one embodiment may be added to another embodiment.
,CLAIMS:We Claim:
1. A rail fastening assembly (100) to mount a rail (102) on a rail seat (104) and transfer load from the rail (102) to the rail seat (104), the assembly comprising:
a composite rail pad assembly (106) including rail pads stacked together and adapted to mount the rail (102) on the rail seat (104) and transfer the load from the rail (102) to the rail seat (104);
a pair of angle plates (108) disposed on each rail foot (110) of both sides of the rail (102), each angle plate (108) including:
a first portion (112) abutting the rail foot (110);
a second portion (114) opposite to the first portion (112); and
a longitudinal groove (116) on a top surface of the angle plate (108); and
a pair of clips (118) mounted on the pair of angle plates (108) using threaded fasteners (120) and adapted to secure the rail (102) and transmit loads from the rail (102) to the rail seat (104) through the rail pads (106), each clip (118) of the pair of the clips (118) comprising:
an attachment portion (124) adapted to receive a threaded fastener (120) and adapted to receive a preload or reaction from the threaded fastener (120);
a pair of oppositely facing first portion (126) seated on a rail foot (110) on the rail (102) and adapted to apply a pre-load or reaction from the threaded fastener (120) to the rail foot (110);
a pair of bend portion (128) extending from the pair of the first portion (126) and adapted to undergo bending and torsion to transmit the load from the rail (102);
a pair of third portion (130) extending from the pair of bend portion (128) and adapted to experience bending and torsion to transmit the second portion of the load there through in response to the bending of the bend portion (128); and
a fourth portion (132) installed in the longitudinal groove (116) extending from pair of the third portion (130), wherein the fourth portion (132) is adapted to transfer the load to the angle plate from the pair of third portion (130) and transmit pre-load and rail lift loads from the attachment portion (124);
2. The assembly (100) as claimed in claim 1, wherein the pair of clips (118) comprising a liner cum bush (300) to provide insulated coupling to the pair of clips (118).
3. The assembly (100) as claimed in claim 1, wherein:
one of the rail pads is a composite rail pad (122) adapted to mount the rail (102) on the rail seat (104) such that load is distributed uniformly from the rail (102) to the rail seat (104); and
the other rail pads is a hard rail pad (123) sandwiched between the composite rail pad (122) and the rail (102) and adapted to attenuate higher rail frequencies.
4. The assembly (100) as claimed in claim 1, wherein the hard rail pad (123) includes:
a pair of down projections (134) adapted to secure, the hard rail pad (123) to the composite rail pad (122), from the longitudinal movements; and
a pair of flanges (136) having upward projections adapted to allow lateral movement of the rail (102) with respect to the rail seat (104) and lock the pair of rail foot (110) on the hard rail pad (123).

5. The assembly (100) as claimed in claim 1, wherein the hard rail pad (123) is made of an elastic material.

6. The assembly (100) as claimed in claim 1, wherein the composite rail pad (122) comprises:
a pair of rubber pads (138) having longitudinal slots (140) and holes (142) extending through a width of the composite rail pad (122) for the threaded fastener (120); and
a corrugated steel plate (144) sandwiched between the interconnected pair rubber pads (138) through holes in the wavy spring steel plate (144).

7. The assembly (100) as claimed in claim 6, wherein the composite rail pad (122) comprises a wavy plate made of spring steel (144) sandwiched between the pair rubber pads (138).

8. The assembly (100) as claimed in claim 1, wherein each angle plate (108) includes:
a mounting shoulder (146) extending from a bottom surface of the angle plate (108) adapted to install the angle plate (108) on the rail seat (104);
a hole (148) extending between the top surface and the bottom surface and adapted to receive the threaded fastener, wherein the first hole and the second hole are coaxial;
a lip (149) extending from the first portion (112) and mounted on the rail foot (110) and
a plurality of longitudinal projections (150) adapted to be inserted in the longitudinal slots (140).

9. The assembly (100) as claimed in claim 1, wherein each first portion (126) includes a bending end (152) forming a gap there between.

10. The assembly (100) as claimed in claim 1, wherein a width of the clip (118) between pair of third portion (130) is greater than a width of the clip (118) at the fourth portion (132) and greater than the width of the clip (118) at the first portion (126).

11. The assembly (100) as claimed in claim 1, wherein the clip (118) is made of a single piece steel rod of a resilient material, and a width of the clip (118) at the first portion (126) is equal to a width of the clip (118) at the fourth portion (132).

12. The assembly (100) as claimed in claim 1, wherein each of the first portion (126) comprising bush coupling ends (154) having a male-female mating projections therein to rigidly couple the bush coupling ends (154).

13. The assembly (100) as claimed in claim 1, comprising a sixth portion (156) adapted to couple the fourth portion (132) to the attachment portion (124).

14. The assembly (100) as claimed in claim 1, wherein the threaded fasteners (120) are coupled to the pair of clips (118) through a cap washer (158) that provides insulation between threaded fastener (120) and clip (118).

15. The assembly (100) as claimed in claim 1, wherein each clip (118) is adapted to assume:
a mounted position in which the clip (118) is mounted to the rail (102), and
a parked position in which the clip (118) is dismounted from the rail (102), wherein an orientation of the clip (118) in the parked position is orthogonal to the orientation of the clip (118) in the mounted position.