from The Century Dictionary.
- noun In metallurgy, the low wall of fire-brick, at the end opposite the fire-bridge, separating the hearth of the furnace from the flue.
Sorry, no etymologies found.
The balls are rolled up into three resting places, one in the fire-bridge corner, one in the flue-bridge corner, and one in the jam, all ready for the puddler to draw them.
The Iron Puddler Davis, James J 1922