Smokejack definitions

Smokejack

1) Chimneywheel 2) Draftmill
Found on https://www.crosswordclues.com/clue/smokejack

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Smokejack

• (n.) A contrivance for turning a spit by means of a fly or wheel moved by the current of ascending air in a chimney.
Found on http://thinkexist.com/dictionary/meaning/smokejack/

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smokejack

(from the article `gas-turbine engine`) The earliest device for extracting rotary mechanical energy from a flowing gas stream was the windmill (see above). It was followed by the smokejack, ...
Found on http://www.britannica.com/eb/a-z/s/113

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Smokejack

Smoke'jack` noun A contrivance for turning a spit by means of a fly or wheel moved by the current of ascending air in a chimney.
Found on http://www.encyclo.co.uk/webster/S/129

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