What do you mean by rail fastening?

A rail fastening system is a means of fixing rails to railroad ties (North America) or sleepers (British Isles, Australasia, and Africa). The terms rail anchors, tie plates, chairs and track fasteners are used to refer to parts or all of a rail fastening system.

What are the functions of fastening?

A fastener (US English) or fastening (UK English) is a hardware device that mechanically joins or affixes two or more objects together. In general, fasteners are used to create non-permanent joints; that is, joints that can be removed or dismantled without damaging the joining components.

What is rail free fastening?

RDSO has developed a new design of RAIL FREE FASTENING to restrict the toe-load of normal fastening from being transmitted to the rail. The new design of RAIL FREE FASTENING facilitates for doing online de-stressing of LWR without taking traffic block on Indian Railways.

How are rails attached to sleepers?

Normally, the rail rests on a cast steel plate which is screwed or bolted to the sleeper. The rail is attached to the plate by a system of clips or clamps, depending on the design. The older UK standard design was an elastic spike with a sprung, curved top which secures the rail.

What is a rail anchor?

: a device to help maintain the proper line and gage of track by resisting the longitudinal movement of rails under traffic and maintaining proper expansion allowance at joint gaps for temperature changes.

What are 4 types of fasteners?

Different Types of Fasteners

• Screws. For many people, when they think of fasteners, screws are the first thing to come to mind.
• Nails. Nails have been used since ancient times, and they are still an everyday household item.
• Bolts, Nuts and Washers. Nuts and bolts are another common type of fastener.
• Anchors.
• Rivets.

What type of steel is rail anchors?

Rail anchor, also called railway anticreeper or railroad spring steel clip, is made of one-piece spring steel or equal, heat-treated and designed to eliminate creepage of track.

How are railroad rails connected?

The rails are connected by railroad ties, usually bolted to them. The ties are set into the loose gravel or ballast, which typically consists of loose stones to help transfer the load to the underlying foundation.

What are the parts of rail?

Common components of rail fastening system include rail clip, railroad spike, rail bolt, rail tie plate, rail pad, washer, plastic dowel, rail insulator and rail shoulder, etc. The main function of rail fastening system is preventing steel rail from lateral and horizontal movement.