Mechanical Puffers for a Fire
Puzzle 18 of Jane Austen Hard Pack
Question is: Mechanical Puffers for a Fire
and the answer is: BELLOWS
Word Meaning:
BELLOWS — A device for delivering pressurized air in a controlled quantity to a controlled location. At its most simple terms a bellows is a container which is deformable in such a way as to alter its volume which has an outlet or outlets where one wishes to blow air.
Definitions from Wiktionary.