Examples from the Web for life buoy
The life-buoy lies unnoticed on the shelf above the berth as long as the sea is calm and everything goes well.Expositions of Holy Scripture|Alexander Maclaren
The last words seemed to present themselves to him as a sort of life-buoy.Bella Donna|Robert Hichens
If he was clinging to the life-buoy he might be all right, but where that was, was the question.Sunshine Bill|W H G Kingston
But one had thrown him a life-buoy, and on this he floated until daylight, when an outbound tug picked him up.The Boy Scouts Book of Stories|Various
I realized that if this continued my life-buoy would be destroyed; but I was helpless.