Piston
Piston Rod
A rod which is secured concentrically to a piston and then passes through one end of a hollow cylinder.
Piston
The head which moves inside the cylinders of a steam locomotive when pressured by steam.
Piston Rod ...
Piston Travel (Air Brake)
The amount of piston movement when forced outward as the brakes are applied.
Pivot Pin (Coupler) ...
Detailed piston gear is evident. Germans paint the underside of their trains red.
Note the red underside. Germans claim that on real trains, red makes inspection easier. More likely, they don't want to waste left over red paint.
The third piston stroke in a 4-cycle diesel engine. As the rising piston nears the top of the cylinder, and just before passing top dead center, fuel is admitted and burned, because of the high compression temperature, forcing the piston downward.
- Electric pistons can be used for any action requiring a quick movement of 2 cm in one direction, then a slow return to normal.
In a reciprocating piston design the pressurized steam is sent into expansion cylinders, which were usually mounted on the outside front end of the frame.
Brake Cylinder A cast metal cylinder with a piston that is forced outward by compressed air in applying the brakes and returned by a release spring in releasing the brakes.
If the total was too high, the boiler would "foam"and allow water into the cylinders,causing lubrication to be washed off pistons and valves.
Crosshead: The pivot between the piston rod and the main rod on a steam locomotive.[17]
Cross-tie (U.S): sleeper (UK): See Railroad tie.
It was very possible we had broken a crankshaft or connecting rod which could (and does) push a piston or pistons out through the side of the engine block. No signs of physical damage so it wasn’t likely the case.
The large steel arm that transmits motion from the piston to the driving wheels of a steam locomotive.
Usually quoted as a percentage, this is the point in a piston stroke at which the supply of steam to the cylinder is cut off by the closing of the valves.
A device on freight cars that maintains brake cylinder piston travel at a predetermined length to compensate for wear of brake shoes, wheels, and brake rigging.
Automatic Train Control (ATC) ...
The arrangement of rods and cranks that are used to transfer piston energy to the driving wheels.
Driving Wheels
The powered wheels of a locomotive.
FM
Fairbanks-Morse. Manufacturer of diesel-electric locomotives, especially opposed-piston types.
Foreign Car
A car belonging to a railroad (or shipper thereon) other than the one it is presently on.
Driving wheels
The powered wheels on a steam engine, coupled through to the pistons and whatnot. As opposed to the usually smaller pony wheels, which just roll along.
A crank and slider is a common, simple mechanism used to convert rotational motion into reciprocating linear motion, or motion that goes back and forth along a straight line. Familiar examples are the piston and crankshaft on a locomotive or in a car ...
The middle number or pair of numbers is the number of driving wheels, that is, the wheels actually powered by the action of the pistons; these are connected by side rods so they work together.
(The same steam pushed two pistons before it whooshed up the stack) The Sante Fe had miles of track thru deserts. They ran a varied fleet of interesting compound locomotives.
 See also: Locomotive, Engine, Track, Diesel, Train
  
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