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Railbound Manganese Steel Frog
A frog consisting essentially of a manganese steel body casting fitted into and between rolled rails and held together with bolts. Known as RBM.
Rail Brace
A metal shape designed to fit the contour of the side of the stock rail and extend over the switch plate with provision for fastening through the plate to the tie to restrain the movement of the stock rail. Available as rigid or adjustable.
Rail Saw
A power machine of either tooth or friction type used to cut steel rails.
Retarder
A braking device, usually power operated, built into a railway track to reduce the speed of cars by means of brake shoes which when set in position press against the sides of the lower portions of the wheels.
Retarder Inert
A braking device, without external power, built into a railway track to reduce the speed of cars by means of brake shoes against the sides of the lower portions of the wheels and sometimes provided with means for opening it to nullify its breaking affect.
Running Rail
The rail that carries a wheel as differentiated from a guard rail or flange rail which carry no weight.
Run Through
To pass wheels through a turnout from frog to switch in direction against the alignment of its switch points. Also known as trailing point.
Railbound Manganese Steel Frog
A frog consisting essentially of a manganese steel body casting fitted into and between rolled rails and held together with bolts. Known as RBM.
Rail Brace
A metal shape designed to fit the contour of the side of the stock rail and extend over the switch plate with provision for fastening through the plate to the tie to restrain the movement of the stock rail. Available as rigid or adjustable.
Rail Saw
A power machine of either tooth or friction type used to cut steel rails.
Retarder
A braking device, usually power operated, built into a railway track to reduce the speed of cars by means of brake shoes which when set in position press against the sides of the lower portions of the wheels.
Retarder Inert
A braking device, without external power, built into a railway track to reduce the speed of cars by means of brake shoes against the sides of the lower portions of the wheels and sometimes provided with means for opening it to nullify its breaking affect.
Running Rail
The rail that carries a wheel as differentiated from a guard rail or flange rail which carry no weight.
Run Through
To pass wheels through a turnout from frog to switch in direction against the alignment of its switch points. Also known as trailing point.
