Apparatus and method for repairing worn rail shoulders

a shoulder and shoulder technology, applied in the direction of tracks, roads, constructions, etc., can solve the problems of increased erosion, too wide gauges, and increased wear and tear on the sides of plastic insulators

Inactive Publication Date: 2009-04-09
PANDROL LTD
View PDF2 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Over time, this action is repeated sufficiently to cause wear and te3836-018final.docar of the shoulder face.
This erosion is increased when sand and other abrasive particles are lodged between the sides of the plastic insulator and the shoulder face.
The same action also produces a wear and tear effect on the sides of the plastic insulators as well.
This lateral shift can be, in some instances, sufficiently large to cause the gauge to be too wide to meet the standard railroad specs.
However, the iron shoulders are embedded into the concrete ties and cannot be removed therefrom.
Needlessly to say, replacing concrete ties is very expensive, and time consuming.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Apparatus and method for repairing worn rail shoulders
  • Apparatus and method for repairing worn rail shoulders
  • Apparatus and method for repairing worn rail shoulders

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013]Referring first to FIG. 1, a typical railroad track 10 consists of a several ties 12 disposed on the grade along the track bed. Each tie holds two rail support assemblies 14, for supporting two parallel rails 16, 18. The rails 16, 18 are shown only in outline. Detail of the rails and many additional components such as clips securing the rails 16, 18 to the support assemblies 14, and other well known components have been omitted for the sake of clarity. The ties can be made of concrete. Moreover, in some instances, rather then providing a single tie extending under both rails 16, 18, individual tie segments may be used, with one tie segment being disposed under each rail.

[0014]As shown in more detail in FIG. 2, each support assembly 14 includes two shoulders 20. The shoulders 20 are made typically of iron and have one or two mounting legs (not shown) imbedded in the ties.

[0015]The two shoulders 20 are carefully placed with respect to each other to define an exact space L betwee...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

In a railroad system a track is formed of ties positioned at predetermined intervals along the right of way, and supporting a pair of rails. Shoulders are disposed in pairs adjacent to the sides of each rail and are partially imbedded in the ties to limit the lateral movement of the rails and define the track gauge. Between each pair of shoulders there is provided a pad disposed under the respective rail. Insulators are provided between the sides of the pad and a respective shoulder. Over time, friction between the insulators and the shoulders may cause excessive wear. This wear is compensated by one or more shims attached to the shoulders by a strong adhesive.

Description

RELATED APPLICATIONS[0001]NoneBACKGROUND OF THE INVENTION[0002]1. Field of Invention[0003]This invention pertains to a method and apparatus for repairing shoulders attached to railroad ties and used to hold rails in place, and more particularly, to a method in which a clip is attached to a face of the shoulder to compensate for material worn away by extended wear and tear.[0004]2. Description of the Prior Art[0005]Railroad systems are still used in many parts of the world as a primary means of transporting freight and people. In a typical modern railroad system, the rails are supported on concrete ties by a pad positioned between two iron shoulders. More specifically, a resilient pad is disposed between the shoulders on the ties, with plastic insulators being coupled to the pads and abutting each of the shoulders. The pads are resilient to protect the ties and to provide a smoother ride for the train and to compensate for slight size and position variations of the ties. As each of t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): E01B9/60E01B3/00E01B9/46
CPCE01B31/02
InventorCOATS, FRANK HOWARD
OwnerPANDROL LTD