Blow George

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A Blow George is an iron or steel plate with either a rectangular opening or holes drilled into the lower half. It is held against the surround of an open fire and accelerates the chimney draw, significantly increasing the efficiency of fire lighting. It is an application of the venturi effect.

Named after George ("blow George blow") Atkinson of Askrigg.^{[citation needed]}

He applied similar principles to mine shaft ventilation [1][2][3] and later to steam engines and in each case referred to the device as a "Blow George".