ES219399U - Simplified cinematographic projector (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Simplified cinematographic projector, which is essentially characterized by being a containment box, inside which is a smooth intake roller, with its corresponding presser for entry of the film, as well as a gear wheel equipped with the appropriate drag roller said film, whose wheel cooperates with an oscillating lever, integral with a rotating mirror which is located at the intersection point at right angles of the theoretical axes passing through a lighting chamber and the objective lens, existing in the front of the chamber a light passage opening of said chamber, carrier of the focus and of the condenser lens, opening in which there exists a concave curved cylindrical guide of revolution for circulation of that film, whose frames in this area appear in number of two complete by an opening and are kept at a constant distance from the axis of rotation of the aforementioned mirror, the assembly is completed with a second fixed mirror aligned with the objective and intended to direct the light rays towards the corresponding projection screen, as well as the delivery and collection drums of the film, of which the second is linked with the cogwheel through a suitable transmission to provide a convenient turning speed. (Machine-translation by Google Translate, not legally binding)