"PROJECTOR OF IMAGES, WITH INTERMITTENT CHANGE AND TIME CONTROL OF PROJECTION TIME", essentially characterized by the fact of understanding, on a central frame, mounted on the base of the apparatus, the corresponding luminous and objective focus, which collaborate in the obtaining of the desired projections, which integrate an endless loop, which passes through a series of drag rollers and receives, in its lateral bands, the action of the teeth of a drum, moved by a device that is responsible for achieving an intermittence of passage of the images and the sudden jump from one to the other, there being a motor and transmitter assembly for this device, as well as a second timer device regulating the projection time. (Machine-translation by Google Translate, not legally binding)
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