I have uploaded 4 new files of the rail lock system I used for a drop
leaf section on my previous layout.
The original idea for this concept goes to the Cuyahoga S Gauge group
who used it for a portable layout.
However, they made perpendicular cuts in the rails, and trains still
"bumped" over them. I went one step further and cut the rails at an
angle as shown in the file photos, which made for smooth, quiet operation.
The lock pins hold the rails in alignment, and also conduct track
power from the bridge to the approach sections on each side. When they
are pulled to open the bridge, the track circuit to the approach
sections is broken, and trains will automatically stop before reaching
the open section (if you make your approaches long enough!)
Bob Nicholson
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