Thursday, September 3, 2020

Air Brakes

We just learned about the Sand Dome.

Another part of steam locomotives is the Air Brakes.

When the engineer wants to stop the train, he pulls a lever to use the brakes.
The lever opens up something called an air reservoir which is a place where high pressured air is stored.
It is kind of like a really tight balloon filled with air, and opening it up causes the air to come blowing out.

The air goes through some tubes to get to a piece of metal called the brake shoe, and the air pressure pushes the metal brake shoe up against the wheel to stop the train.

(from: wikipedia - railway air brake)

Kid Facts - Blast from the past: Rotor