John Matthews (soda water manufacturer)
John Matthews (1808–1870) was an English-born American inventor and soda water manufacturer. He is known as "The Soda Fountain King".
Matthews manufactured carbonating machinery and distributed his product through retail stores. The equipment was a lead-lined cast-iron box where carbonic acid gas was formed by mixing sulphuric acid with marble dust. The gas was then purified by passing it through water, and then into a tank partially filled with cool water. The tank was rocked for a quarter to a half hour, until the water was impregnated and bubbly.
Matthews created a fountain apparatus that could be positioned on a pharmacist’s counter to dispense carbonated drinks, leading to its popularisation and rapid growth.
See also 
- John Matthews - Father of the Soda Fountain by Donald Yates, published in Bottles and Extras, Summer 2006
- The Soda Fountain by Joseph L Morrison
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