- A machine for turning a roasting-spit by means of a fly-wheel or -wheels, set in motion by the current of ascending air in a chimney.
- On railways, a hood or covering for the end of a stove-pipe, on the outside of a car. Also called <internalXref urlencoded="stove-jack">stove-jack</internalXref>.
- A contrivance for turning a spit by means of a fly or wheel moved by the current of ascending air in a chimney.
- A <xref>device</xref> for <xref>turning</xref> a <xref>spit</xref> by means of a <xref>fly</xref> or <xref>wheel</xref> moved by the <xref>current</xref> of <xref>ascending</xref> <xref>air</xref> in a <xref>chimney</xref>.