The lock broke open, and he quickly pulled the chain through the iron loops holding it against the bar.

The iron loop sheared and the lock fell from the hasp.

In the center of their cell was a large iron loop, to which their shackles were padlocked.

He went over the side, treading on the iron loop he had found.

Barney found it easier to feel the iron loops after a time.

He felt for the iron loops and put his arms through them, supporting himself there as one was obviously meant to.

An iron loop had been welded at its top.

Then the rope was run through an iron loop and tied again.

'Let's get back to the iron loops and put our hands behind us so that he thinks we're still bound.'