save-all

n. [ Save + all. ] Anything which saves fragments, or prevents waste or loss. Specifically: (a) A device in a candlestick to hold the ends of candles, so that they be burned. (b) (Naut.) A small sail sometimes set under the foot of another sail, to catch the wind that would pass under it. Totten. [ 1913 Webster ]

(c) A trough to prevent waste in a paper-making machine. [ 1913 Webster ]