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Guard rail

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Guard Rail
A longitudinal rail running alongside a railway track and raised in height above the running rails. Guard rails are sometimes found on bridges and are intended to restrain the lateral movement of vehicles which might become derailed.
Guard's Periscope ...

Guard rails
Most bridges have guardrails extending through the bridge on the inside of the regular rails to keep the wheels in line and prevent derailments on the bridge. They usually extend any where from 20 to 60 feet on each side of the bridge.
Curved bridges ...

Guard rail clamp. A device consisting of a yoke and fastening devices engaging the running rail and guard rail. Not all guard rails have clamps.
- H - ...

Test the guard rail.
Then do the other one and test it as well. After it is all glued and tested, add solder to the whole thing to tie it all together.
This time you will only have to wire the one rail as the solder in the frog connects it all together. File the openings back open again.

I. Install guard rails
1. Use standards gauge to make sure the wheels do not pick the point of the frog. This is done with the flange ways end of the standards gauge.
2. Make sure the flange ways are the right size ...

Guard rail (US) Check rail (UK): A double rail section of track, sometimes found in train yards and on bridges to prevent derailments or limit damage caused by derailments , by having rail on both sides of the wheel flange. Also found on curves with a tight radius and switches and crossings ...

Flair A tapered widening of the flangeway at the end of the guard line of a track structure, as at the end of a guard rail or at the end of a frog or crossing wing rail. Flangeway The open way through a track structure, which provides a passageway for wheel flanges.

A metal block of two or more parts, acting as a filler between running rail and guard rail and providing a means of maintaining the proper width of flangeway.
Shake (timber). A lengthwise separation of wood, following annular rings.

If rail "B" is the favored rail (move guard rail "G" to side "B") then all left to right traffic will go to "Y". The key to success is to make certain that wheels always bear against the desired rail. Centrifugal force or gravity provide bias toward one rail.

Run a set of wheels back and forth through both legs to be sure they don't pick at the frog. I do this before putting in the guard rails. The guard rails will make it even better. The wheels on the trucks should not drop into the frog and should pass through without binding.

Dogcock A device used in unison with a clawbar to pull spikes from the wing rails of a frog and also from the guard rail. Dollyflopper A brakeman or switch-tender - someone who throws switches. Doorslammer Slang for a passenger trainman.

See also: See also: What is the meaning of Train, Track, Engine, Layout, Rail?

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