"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

Condensing Pump

"The condensing pump is an instrument for compressing a gas into a closed vessel, as in pumping air…