A descriptive and historical account of hydraulic and other machines for raising water (1850)
Ewbank, Thomas, 1792-1870 · New York, Bangs, Platt, & Co. · leaf 262
ludes in the following line: One stirs the fire and one the bellows blows. En. viii.Every modern bellows maker would be convinced from an inspectionof the last figures, that valves were employed, since the instruments couldnot possibly have acted without them; but all doubts respecting an… … No. 104. Egyptian Bellows in use before the Exodus. perhaps intended to show another variety of the instrument as made inthose times. Their upper surfaces seem to have been of wood, in thecentre of which, the orifices of the valves are distinctly shown; the valvesor clacks were therefore inverted,…
Pumping machinery
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