A descriptive and historical account of hydraulic and other machines for raising water (1842)
Ewbank, Thomas · Tilt & Bogue · leaf 508
488 Draft of Chimneys — Ventilation of Skips . [ Book V . chapter . 2 . Increasing the draft of chimneys , as well as preventing them from Smoking . Instead of the old fashioned caps of clay or the moveable ones of iron , let them be made in the form of … a vacuum in the chimney , as in the blowing No . 215 . tubes already described . A device of this kind might be made to act in windy weather as a per - petual bellows to blast or refining furnaces , and also to those of steam - boats and locomotive carriages . When used on chimneys of the latter ,…
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