In article , John Rowland
writes
Was there any device to prevent broad gauge trains attempting to go the
wrong way?

No broad gauge rail. The track would be something like this:

\ \ \
\ \ C\
\ \ \\------------
\ \ \--C
-------X-------\--------------
\
\
\
------------------------------

Irrespective of the setting of the points, the check rail C would pull a
broad-gauge axle around the curve. If the common rail is on the other
side it's harder; one approach is to slew the standard-gauge track
across before the points:

\ \ \
\ \ C\
\ \ \\---------O------
\ \ \--C /C
-------X-------\---------//
\ C--/ /--C
\ //----
\ C/
---------------------------O------

Note that the locations marked O do *not* have a point blade; the
diverging rail ends short of the stock rail. Broad-gauge trains stay on
the stock rail, while standard gauge ones are pulled across by the check
rails.

--
Clive D.W. Feather | Home:
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