In the District Court of the United States, for the Eastern District of Pennsylvania, the United States of America, petitioner, vs. Motion Picture Patents Company, et al., defendants (1914)

586,953 ism adapted to intermittingly quickly move said surface at short intervals for exposing or exhibiting the pictures in the ordei of their succession, and for holding the surface sta5 tionary during the intervafof illumination of each picture; the interval of illumination of the picture being made to exceed the interval of motion or change, substantially as described. ro S. The Combination, in an apparatus forexhibiting pictures so as to give the impression to the eye of objects in motion, of a movabla picture-carrying surface and means for intermittingly moving said surface at short inter 15 vals exceeding the interval required in effecting the movement, so that the interval of pause and illumination shall exceed the interval of motion, substantially as described. 3. The combination, in pictnre-exhibrling to apparatus for giving the impression to the eye of objects in motion, of a picture-carrying surface, means for supporting the same and means for feedingsuch surface intermittingly in such manner that the interval of illumina*5 tibn of the picture shall predominate the interval of motion, substantially as described. 4. The combination, in picture-exhibiting apparatus forgiving the impression to the eye of objects in motion, of a picture-carrying 30 surface, means for supportingand intermittingly quiokly moving the same, and means for illuminating the pictures successively between the intervals of motion in such manner thai) tne interval of pause and. illumination 35 of the picture shall predominate the interval of movement, substantially as described. 5. In a picture-exhibiting apparatus for giving the impression to the eye of objects in motion, the combination with a transparent 40 picture-carrying surface, of means for intermittingly moving the same step by step so as to present to view the pictures thereon in the order of their succession ; ' the interval of time between the exhibition of successive pictures 45 being instantaneous while the period of illumination is comparatively greatly prolonged, substantially as described; 6. In picture-exhibiting apparatus for giving the impression to the eye of objects in 50 motion, the combination with a picture-carrying surface, of meebaaism for intermittingly moving said surface at short intervals so as to expose the pictures thereon successively in an illuminated field for an interval of time ex 55 ceeding the interval of motion, comprising a peripherally -notched disk or wheel having semicircular or concave depressions between said notches, and a smaller gear having substantially a toothloss periphery except. at one 60 point where a tooth is provided to engage the notches of the disk or wheel, so as to impart an io'-ermittent step-by-step movement to the picture-carryingsurface, and to hold thesame immovable during the intervals of pause, sub 65 atantially as described. 7. In picture-exhibiting apparatus for giving the impression to the eye of objects in motion, the combination with the picture-carrying film and means for intermittingly moving said film so as to expose the pictures there 70 on successively in an illuminated field for an interval of. time exceeding the interval of mo tion, of the tension device comprising two members between which the film is adapted to pass, one member being adapted to yield i$ Jn.sLY press, the film toward the other so that it is held taut and prevented from flexing or puckering at the point of exposure of the picture, sul*stantiallyas described. 8. In a picture -exhibiting apparatus for 80 giving the impression to the eye of objects in motion, the combination with an illuminator and a projecting lens, of a transparent pic tu re-carrying surface arranged in the focus othe objective of the projecting lens, means for 85 intermittingly moving the said surface in such manner that the interval of illumination^hall exceed the Interval of change, and a tension device adapted to keep the picture taut and prevent flexingorpuckeringatthepointofex 90 posure, substantially as described. 9. An apparatus for exhibiting pictures so as to give the impression to the eye of objects in motion, comprising a picture-carrying film or surface adapted to be given an intermit 95 tent step-by-step movement for bringing the pictures or objects thereon successively into position for exposure in an illuminated field, means for illuminating pictures or objects exposed in said field, and mechanism for quickly 100 moving satd surface at intervals so as to successively expose the pictures or obje :ts thereon, the exposed picture or object being uninterruptedly illuminated during the period of exposure, the construction being such that 105 the impression made by the illuminated picture while stationary so greatly predominates any impression liable to be caused by the motion of the film as to render the latter imperceptible to the eye, owing to the persistence no of vision, substantially as described. 10. An apparatus for exhibiting pictures, comprising a movable picture-carrying surface or film adapted to be given an intermittent step-by-step movement, so as to bring a 115 series of pictures or objects thereon successively into an illuminated field, means for illuminating.the picture or object exposed in said field, and mechanism for intermittently moving said surface so as to quickly subati 120 tute one picture for another without interrupting the illumination; the construction being such that the motion of the film is rendered imperceptible to the eye by the predominating impression of the picture and the ias persistence of vision, substantially as described. In testimony whereof we affix our signatures in presence of two witnesses. CHAS. FRANCIS JENKINS. THOS. ARMAT. Witnesses: J. A. E. Criswell, Wm. B. Chowbll.