Downton pump
The Downton pump is type of positive displacement pump patented in 1825 by Jonathan Downton, a British shipwright. It was typically used on ships.
The Downton pump is type of positive displacement pump patented in 1825 by Jonathan Downton, a British shipwright. It was typically used on ships.
The Downton pump is type of positive displacement pump patented in 1825 by Jonathan Downton, a British shipwright. It was typically used on ships.
Source: Wikipedia "Downton pump" · CC BY-SA 4.0
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