By withdrawing all four pins, the kettle can be completely detached from the base.
"Presentation Pieces in the Museum of History and Technology" by Margaret Brown Klapthor
It can best be likened to a huge iron kettle with a big spout at the top and with two projecting pins, one on each side.
"The Romance of War Inventions" by Thomas W. Corbin
A small axe and an old kettle, a few books, a picket-pin and a rope completed the outfit.
"The Warden of the Plains" by John Maclean
Fibulae, often of the "kettle-drum" form, take the place of the Bronze age pin.
"Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 7" by Various