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A derail or derailer is a device used to prevent fouling (blocking or compromising) of a rail track (or collision with anything present on the track, such as a person, or a train) by unauthorized movements of trains or unattended rolling stock. The device works by derailing the equipment as it rolls over or through it.
Applications, Design & Failures
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rail used track equipment type derailer derails train unauthorized device portable derailing line common railroad stop prevent rolling stock although
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Derail | is a | portable derail | 0.90 | text |
| Derail | has application | Derails | 0.60 | section |
| Derail | has application | Where | 0.60 | section |
| Derail | related to Design | There | 0.60 | section |
| Derail | related to Failures | Derails | 0.60 | section |
| Derail | related to Failures | Examples | 0.60 | section |
| Derail | related to Failures | Newark Bay | 0.60 | section |
| Derail | related to Failures | On September | 0.60 | section |
| Derail | related to Failures | New Jersey | 0.60 | section |
| Derail | related to Failures | United States | 0.60 | section |
| Derail | related to Failures | Central Railroad | 0.60 | section |
| Derail | related to Failures | CNJ | 0.60 | section |
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