manually operated switch![click to hear](/images/speaker.jpg)
Device operated by hand for opening and closing a pair of movable track rails (switch points) to guide a train from one track to another.
switch point ![click to hear](/images/speaker.jpg)
Movable rail that is machine-tapered at the end and connected to a parallel and similarly machined switch point.
slide chair ![click to hear](/images/speaker.jpg)
Type of seat on which the switch points slide.
pull rod ![click to hear](/images/speaker.jpg)
Metal part connected to the switch stand that opens and closes the switch points.
switch stand ![click to hear](/images/speaker.jpg)
Manually operated lever that opens and closes the switch.
check-rail ![click to hear](/images/speaker.jpg)
Metal part opposite the frog and inside the running rail that keeps the train on the tracks as the wheels pass over the frog.
switch signal ![click to hear](/images/speaker.jpg)
Device with an arm that is controlled by the switch stand; it is raised or lowered to indicate whether the switch is open or closed.
frog ![click to hear](/images/speaker.jpg)
Casting that makes it possible for wheels to roll smoothly over the point where two rails cross.
closure rail ![click to hear](/images/speaker.jpg)
Two fixed rails located between a switch point and a frog.