Steam Sugar Apparatus
Steam Sugar Apparatus
By Norbert Rillieux
Patent granted 1843
Ink and watercolor on paper
18" x 25 1/4"
National Archives and Records Administration, Records of the Patent and Trademark Office

Rillieux's Steam Sugar Apparatus, Patent Drawing
Here are two of several patent drawings that Norbert Rillieux, an African American inventor from New Orleans, Louisiana, sent to the Patent Office. He invented an improved method for evaporating and concentrating juices and syrups during the manufacture of sugar. These are two of more than 100,000 utility or invention patent drawings held at College Park, Maryland, by the Special Media Services Division of the National Archives and Records Administration.

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