Codd-neck bottle
type of bottle
A Codd-neck bottle (more commonly known as a ramune bottle or a marble bottle) is a type of bottle used for carbonated drinks. It has a closing design based on a glass marble which is held against a rubber seal, which sits within a recess in the lip.
Design
In 1872, soft-drink maker Hiram Codd of Camberwell, London, designed and patented a bottle designed specifically for carbonated drinks. The bottle was designed and manufactured with thick glass to withstand internal pressure, and a chamber to enclose a marble and a rubber washer in the neck. The bottles are filled upside down, and pressure of the gas in the bottle forces the marble against the washer, sealing in the carbonation. This use of pressure to aid in containment can be seen in other types of check valve.
The bottle is pinched into a special shape to provide a chamber into which the marble is pushed to open the bottle. This prevents the marble from blocking the neck as the drink is poured. Some older examples had the bullet shape of soda bottles.
Popularity
Soon after its introduction, the bottle became extremely popular with the soft-drink and brewing industries mainly in Europe, India and Australasia, though some alcohol drinkers disdained the use of the bottle.
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