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“Mechanical interlocking and signaling” article series

The device protects train movement on a model railroad just like on the prototype
Interlockingmachine
Interlocking machine
The intricacies of interlocking plants have fascinated me since I read Model Railroader’s “Mechanical interlocking and signaling” series in 1961. In that series, MR’s Gordon Odegard and Paul Larson explained how they scratchbuilt a miniature interlocking machine that included operating finger-size levers for Paul’s HO layout.

It took me almost 50 years to get a model railroad suitable for an interlocking, but I finally built and installed an interlocking plant that serves my 1895-era Stockton & Copperopolis RR. It’s typical of prototype interlockings that controlled traffic at junctions, a crossing of another railroad, or at a drawbridge.

Click on the links below to download each article in the series.
Downloadable File(s)

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