Some improvements in the apparatus for visioning impressive cinematographic films (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in the apparatuses for viewing impressed cinematographic films, which are characterized by resolving their optical system, according to a vertical axis that, starting from the light source, impinges on a rotating prismatic capacitor, of square section and horizontal axis, coinciding with that of its rotation; presenting the edges parallel to said axis covered with respective barrones with their mechanical support attached to said axis of rotation; the same support and its turning mechanism are activated by the advance of the film to be projected on the translucent screen used for the revision of the possible tares of such film. (Machine-translation by Google Translate, not legally binding)