1 Tender — Container holding both water for the boiler and combustible fuel such as wood, coal or oil for the fire box.
2 Cab — Compartment from which the engineer and fireman can control the engine and tend the firebox.
3 Whistle — Steam powered whistle, located on top of the boiler and used as a signalling and warning device.
4 Reach rod — Rod linking the reversing actuator in the cab (often a johnson bar)) to the valve gear.
5 Safety valve — Pressure relief valve to stop the boiler exceeding the operating limit.
6 Generator — small steam turbine directly coupled with electrical generator to headlights etc.
