Railroad

Railroad

A railroad is a means of wheeled transportation for moving people and goods. Railroads are tracks on which trains can tow cars behind an engine.

Industry: Railways

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Railroad

A frog with a guard member for guiding the flange of a wheel past the point of frog by engaging the tread rim of the wheel in a horizontal plane above the top of the running surface of the frog. This ...

Canted tie plate

Railways; Railroad

A tie plate tapered in thickness usually on a slope of 1 in 20, for the purpose of inclining the rail toward the centre of track for easier maintenance of gage, more uniform wear of head, and central ...

Semaphore signal

Railways; Railroad

A signal that uses a moving arm to indicate the state of the line ahead. Having the signal arm point straight out usually indicates that the next section contains a train. A raised or lowered arm ...

Capacitor discharge unit (CDU)

Railways; Railroad

Used to store power so that several point motors may be fired simultaneously.

Sheave

Railways; Railroad

A wheel having a groove or grooves in its face surface for the passage of cable. This term may be applied collectively to include both sheave and its housing block.