If he has to dive for the drowning one, he merely unbuckles the life belt and when he comes to the surface the buoy is right there for him to seize hold of, or, if he chose to, he could strap it fast to the one he is trying to save.
"The Boy Scout Fire Fighters"
Irving Crump
It unbuckles our tight-wads and gives our ingenious young loafers something to do.
"Homeburg Memories"
George Helgesen Fitch