Condensing Pump

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“The condensing pump is an instrument for compressing a gas into a closed vessel, as in pumping air into a pneumatic tire of a bicycle, or oxygen or hydrogen into the cylinders commonly used for stereopticon purposes, or charging water with carbon dioxide for sale as ‘soda water’.” -Avery 1895


Elroy M. Avery School Physics (New York: Sheldon and Company, 1895) 196


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