Topic summary
Sarabet
Extracted from the Wikipedia article Mary Hallock-Greenewalt.
'Color organ'
Her color organ, which she named "Sarabet" after her mother, required her to invent a number of new technologies. She received nine patents from the US Patent office for them. Among these devices was a non-linear variety of rheostat, a patent that was infringed by General Electric and other companies. She sued them for infringement and won in 1934. The Sarabet went through a series of refinements between 1916 and 1934. In 1946 she published a book on her invented art of "light-color playing" called Nourathar: The Fine Art of Light-Color Playing.