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Pastimes : Don't Ask Rambi -- Ignore unavailable to you. Want to Upgrade?

To: Jacques Chitte who wrote (51569)5/31/2000 11:39:00 PM
From: JF Quinnelly  Read Replies (1) | Respond to of 71178
 
There is a y-shaped union of rails where two rail lines come together in a switch.... the 'outside rail' of the mainline is straight, the 'outside rail' of the diverging line is bent... the "inside rails" where the two lines join form a y-shaped, or v-shaped, piece of rail which is known as the "frog". The frog usually has some minor rail pieces associated with it that serve to keep the wheels from jumping the switch as they pass over.



To: Jacques Chitte who wrote (51569)6/1/2000 12:04:00 AM
From: JF Quinnelly  Read Replies (3) | Respond to of 71178
 
Here's your frog:

ccs.neu.edu



To: Jacques Chitte who wrote (51569)6/1/2000 7:26:00 AM
From: Ish  Respond to of 71178
 
<<What is a frog? >>

It's some part of the device that moves the rails so the train changes tracks.

<<Can you link a pic? >>

No. I'm not sure which part they are. They probably have a technical name and there's not many close ups of rail switches on the net. When I first heard they were using explosives to harden frogs I had a bad mental picture until it was explained they were part of the rail.

My guess would be they are a hinge or pivot device.


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