Puddler

noun

1. One that puddles iron or clay.
2. A device or machine for stirring the fused metal in a puddling-furnace.
3. One who or that which puddles; specifically, one who is employed in the process of converting cast-iron into wrought-iron.
4. One who converts cast iron into wrought iron by the process of puddling.
5. One who converts cast iron into wrought iron by the process of puddling.