Re: types of dual gauge switches

dougvv Wrote:
=======================================================
> Hi,
>
> Although I can not find it, RMC showed something
> like 26 different types of switches back in the
> 1960s. It was what got me interested in handlaying
> switches.
>
> RMC mentioned that (as you have) the gauge
> separation "switch" as not being a true switch.
> The RMC article said that if it had a point or
> stub in it, it was generally considered a switch.
> So a draw would be a switch IF it had a moving
> point.
>
> The RMC article called the 3-to-4 (or 4-to-3) rail
> gauge change before a turntable a switch also.
>
> My personal opinion is that they are all dual
> gauge switches even though they do not have all
> gauges going all ways. Otherwise it gets too
> confusing as to proper names.
>
> Doug vV


One thing to keep in mind since the diagrams were in RMC we are talking about model trackwork. Normally models don't track like the prototype because of the obvious: lack of mass and gravitational attraction. Where the prototype can use a draw type of "non-point" to move in a different path most models cannot and will derail. Therefore it is a common model railroading practice to use a moveable point for positive direction control without derailments.

So what will work in the real 1:1 world has to be modified for the 1:87 or even 1:64/48 world.