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Railways

The means of conveyance of passengers and goods by way of wheeled vehicles running on rail tracks.

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dating nail

Railways; Railroad

A galvanized or copper nail with a large head in which the last two numerals of the year are stamped; used when a tie is laid or treated to indicate its service life.

stock rail

Railways; Railroad

A running rail against which a switch point operates.

dead frog

Railways; Railroad

A model turnout where the crossing vee is moulded of plastic so as to keep the two track circuits through the turnout entirely separate.

stock rail bend

Railways; Railroad

The bend or set which must be given the stock rail at the vertex of a switch to allow it to follow the gage line on the turnout. Usually, only one stock rail of a switch is bent. ...

deenergized-apparently dead

Railways; Railroad

Electric apparatus, such as overhead wires, third rail, transformers, switches, motors, etc., is deenergized when disconnected from the normal power source, but such apparatus is ...

stock rails

Railways; Railroad

The outside running rails through a turnout.

degree of curvature

Railways; Railroad

A measure of the sharpness of a simple curve in which a 1deg. curve is taken as the central angle subtended by a chord or arc of 100 feet and for which the radius is taken as ...