> Date: 22 Jan 1996 05:04:36 GMT
> >I'm using sheet brass soldered between the rails and want to
> >know how long I should make the strip.
> When the points are against one rail the distance between the other point and
> other rail must be at least equal to a flange way.
AS A MAXIMUM DISTANCE --- Even then you may have problems. Consider,if
you use the 'flangeway' distance, then any correctly gauged wheel set can
rub the back of the point that it is passing, IF it is a metal wheel, and
you are using a piece of brass soldered between the points, and the other
point is snugged up to the other rail, you have what is commonly
referred to as a SHORT CIRCUIT. That is why commercial turnouts that
have electricly bonded points, use a much WIDER than 'flangeway' spacing.
If you desire to use the 'flangeway' distance as your controlling figure
(It WILL look better), you then need to go to the trouble to solder an
'ear'/'tab' to the bottom of each point, through which you can run a
screw/rivet into an insulated throw bar.
Failing to go this route, means that you need to use a brass piece
SHORTER than what would give you a 'flangeway' width gap.
> If you make it any wider you
> will probably require excessive point throw.
> ernie fisch
Most switch machines are capable of throws of 1 1/2 to 2 'flangeways'.