Roussel's reading machine
Roussel's reading machine is a mechanical reading machine that Raymond Roussel developed in the 1930s as a reading aid for his nested texts.
With his reading machine , the text is applied to different pieces of paper like a circular register , whereby the upper edge is marked with a certain color depending on the degree of nesting. The reader switches between the slips of paper with a crank so that he can read the text parts marked as coherent in color separately.
Roussel presented such a reading machine to his publisher in 1932, but he refused to have it mass-produced. The Roussel reading machine was first presented to the public in an exhibition in 1937.