UnderMiner
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Found this strange looking seltzer dispenser at the dump today, it has patent dates on it from July 20th 1897 and 1898.
Research indicates it is called a 'Gasogene'. It should have a small glass bottle, but that has been lost to time. According to Wikipedia it was not uncommon for the glass bottle on the bottom to explode due to being over-pressurized, a fate that may have befallen this example:



A gasogene is mentioned as a residential fixture at 221B Baker Street in Arthur Conan Doyle's Sherlock Holmes. "A Scandal in Bohemia": "With hardly a word spoken, but with a kindly eye, he waved me to an armchair, threw across his case of cigars, and indicated a spirit case and a gasogene in the corner."
What it should look like:

"A Gasogene is a late Victorian device for producing carbonated water. It consists of two linked globes: the lower contained water or other drink to be made sparkling, the upper a mixture of tartaric acid and sodium bicarbonate that reacts to produce carbon dioxide. The produced gas pushes the liquid in the lower container up a tube and out of the device. The glass globe is surrounded by a wicker or wire protective mesh, as they have a tendency to explode." -Wikipedia
Research indicates it is called a 'Gasogene'. It should have a small glass bottle, but that has been lost to time. According to Wikipedia it was not uncommon for the glass bottle on the bottom to explode due to being over-pressurized, a fate that may have befallen this example:



A gasogene is mentioned as a residential fixture at 221B Baker Street in Arthur Conan Doyle's Sherlock Holmes. "A Scandal in Bohemia": "With hardly a word spoken, but with a kindly eye, he waved me to an armchair, threw across his case of cigars, and indicated a spirit case and a gasogene in the corner."
What it should look like:

"A Gasogene is a late Victorian device for producing carbonated water. It consists of two linked globes: the lower contained water or other drink to be made sparkling, the upper a mixture of tartaric acid and sodium bicarbonate that reacts to produce carbon dioxide. The produced gas pushes the liquid in the lower container up a tube and out of the device. The glass globe is surrounded by a wicker or wire protective mesh, as they have a tendency to explode." -Wikipedia
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