The given diagram depicts a process through which aromatic oil is extracted for the production of fragrance. Overall, there are two major stages involved, including the extraction of oil from aromatic herbs and processing the gathered oil.
The process starts with water in a cylinder container being heated to the point of vaporizing. Subsequently, through a tube connected to the next chamber, the collected steam is directed below a stack of various aromatic plants. As the steam flows upward, it gathers the fragrant oil vapor from the herbs.
The next stage of the process involves a third container filled with cold water at the bottom and warm water on top, and a spring-shaped tube inside, through which the steam and oil mixture gets condensed into a liquid. This concoction is then directed to the final chamber, where the bottleneck-shaped compartment separates the essential oil and hydrolat, resulting in the production of aromatic water.