Built by engineer Adrian Stephens at the Dowlais Ironworks in Merthyr Tydfil. It was a simple ... It was added to every boiler, railway locomotive and steam ship around the world.

The UK is in the grips of financial stagnation. Economic growth and productivity across the country as a whole have slowed ...

the ironworks of Merthyr Tydfil rapidly adopted the new invention; the first experiment in locomotion was made in Wales and the country contributed enormously to the supply of fuel for steam ...