Betty lamp

noun1

1. •
   (historical) A lamp consisting of a shallow lidded metal vessel with a small spout for a coarse wick, fueled by tallow, grease, or oil, usually hung by a hook and chain, and used especially in the American colonies.

   • Taking the long candlestick from the windowsill, she hurries to the betty lamp, pulls its wick out with the chain pick, and lights her candle from the bear fat flame. — 1999