One of the Oneida's iron boilers had been shut down for repairs leaving only one in operation.

It's an iron boiler, you know.

Hunching over, he passed through a large iron boiler from an old steam engine, and then through the round side door of Headquarters.

Wrought iron boilers to raise steam to power pumps, air compressors and haulage were originally sited near the bottom of No.2 shaft, the upcast shaft.

The Steam Tank is powered by a substantial iron boiler which feeds steam through a series of pipes and pistons to drive the wheels.

It was easier (and cheaper) to utilize the boilermaker's skills to construct the ship as they were already present in the shipyard constructing iron boilers for wooden steamships.

Now they were in an old iron boiler that bad come from some monster steam engine.

Three engines of this early design with wrought iron boilers were produced and exhibited at the RASE in the late 1840s.

Rival owners tried to lure passengers by racing their boats against each other - an incredibly dangerous endeavor in an age of iron boilers.

The station did not process whale blubber, which was done on the ships, but boiled down the carcasses in large iron boilers to extract additional whale oil, which was stored in iron tanks.