Smokejack

Origin

smoke + jack

Full definition of smokejack

Noun

1. A device for turning a spit by means of a fly or wheel moved by the current of ascending air in a chimney.
• 1871 Thomas Hardy "Desperate Remedies"Minute recurrent sounds prevailed -- the click of the smoke-jack, the flap of the flames, and the light touches of the women's slippers upon the floor.

Alternative forms

• smoke-jack