safety chain

British  

noun

1. Also called: guard.  a chain on the fastening of a bracelet, watch, etc, to ensure that it cannot open enough to fall off accidentally

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Example Sentences

In time, though, words and images begin syncing up — we hear “the security chain was locked” over a shot of a safety chain lock — creating a seamless correspondence between what we hear and see.

From New York Times

Two anchors failed, three others dragged and another was torn apart, with parts broken to pieces, including a snapped safety chain.

From Seattle Times

For the John S. McCain to collide with the Alnic MC, a handful of separate functions in the safety chain must have failed, the officer said.

From New York Times

A trailer safety chain sparked after it came into contact with a rock.

From Washington Times

Last year, an opponent of climbing on the rock - which the parks service already bans when it is too wet, windy or hot - cut the safety chain which runs along the ascent.

From BBC