The first fire alarm was sounded by clanging a big iron bell.

We'll have no need to build an iron bell to keep our air in place.

An old iron bell, used during the early period of the college, is a part of the sculpture.

And later still: "If you hear the iron bells, you come to me."

If you hear the iron bells, you come to me.

Dinner was announced by an iron bell, which Alex rang long and loud.

At ten o'clock an iron bell rang through the Castle.

It spoke only four words, but they echoed in Lois's head like iron bells.

And then everything stopped as there came the sound of an awful iron bell, tolling far away.

The standard pattern is often sounded on an iron bell.