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)

673,992 posurewith Treat rapidity without unnecessary strain and wear upon the film, substantially as described. 6. In a picture -exhibiting apparatus, the 5 combination with a picture-carrying surface or film and means for intermittingly moving the same so as to successively expose the pictures thereon, a tension device for yieldingly holding the film, having two parts or mem to hers adapted to exert different pressures, so as to insure prompt action of one or the other of said parts the instant the film has moved the desired distance, substantially as described. 15 7. In a pictureexhibiting apparatus, the combination with an illuminator and a projecting lens, of R picturecarrying strip or film having a portion thereof arranged in the focus of the objective of the projecting lens, 20 a tension device having two members adapted to exert different pressures so as to keep said portion of the .film taut and prevent flexing or puckering at the point of exposure, means for intermittently moving said portion 25 so as to impart a step-by-step movement thereto and successively place the pictures in position for exposure, mechanism for taking up the film as it is ltftermittently moved, and mechanism for feeding the film so as to provide slack therein between the same and said tension device, whereby that portion of the film between the feeding and take-up mechanisms may be intermittently moved with great rapidity.without unnecessary strain and wear upon the film, substantially as described. S. In a picture -exhibiting apparatus, the combination with a pictrire-carrying film, of a tension device therefor having two members adapted to exert different pressures so 40 as to keep the film taut and prevent flexing or puckering at the point of exposure, mechanism for taking up the film after leaving the tension device, means located intermediate said, tension device and the take-up 45 mechanism for intermittently moving the film, together with'means for feeding the film so as to provide slack between the same and said tension device, whereby the pictures may be successively placed in position for exposure 5c with great rapidity without unnecessary strain and wear upon the film, substantially as described. 9. The combination with a film or strip and means for imparting movement thereto, of a 55 tension device provided with a yielding member adapted to hold and keep' the film taut and prevent flexing or puckeringat the point of exposure, arotatable element adapted to contact with a portion of the yielding mem 60 berso as to reliev^the pressure exerted thereby upon the film, together with means for intermittently moving the fiiin through the tension device, substantially as described. 10. The combination with a film or strip, of *)5 a pair of feed-drums adapted to be continuously rotated so as to give a continuous movement to the film, a tension device interposed |o $5 between the feed-drums nnd provided with a yielding member adapted 10 hold and keep the film taut, so as to provide slack on one 70 side thereof, a rotary disk or cam adapted to contact with a portion of the yielding member so as to release the pressure thereof on said -film, and having thereon a projecting portion adapted to engage the film and in 75 termittently move the same when the pressure of said yielding member is released", substantially as described. 11. Ineombiuation with the film and means for imparting movement thereto, the tensiou 80 device comprising three members between which the film is adapted to pass, one member being stationary and the others adapted to press the film against said stationary member with different pressures so that when the 85 pressure of one of the yielding -members is released the other may exert a pressure sufficient to prevent slipping of the film withoutpreventingits proper movement, whereby the film may be successively moved a uni 90 form distance, substantially as described. 12. The combination with a film orstrip, of a tension device comprisingastationary member, two spring -pressed yielding members adapted to press the film against said sta 95 tionary member with different pressures, guides for alining the film, and means whereby one of the yielding members may be actuated so as to release the pressure exerted thereby upou the film, substantially as de roc scribed. 13. The combination with a film orstrip, of a tension device comprising a stationary member, two yielding FTfcnibers hinged thereto adapted to press the film against said sta 105 tionary member with different pressures, guides for alining the film, means where1 ,y one of the yielding members may be actual ed so as to release the pressure thereof upon the film, and a plats or shield carried by one oft 10 the yielding members and separated there from sufficiently to provide space for the circulation of air, whereby the film may be protected from the heat of the illuminator and the parrs kept cool by the fanniug action of 115 said plate, substantially as described. 14. The combination with a film or strip and means for imparting movement thereto, of a support, banks or series of rollers separated from each other and adjustably held upou 120 said support so that the film may pass alternately from a roller of one series to the next succeeding roller of the other series, together with an arm pivotally held to the support and provided with a roller adapted to engage 125 the film and exert a tension thereou, substantially as described. In testimony whereof I affix my signature in presence of two witnesses. THOMAS ARMAT. Witnesses: J. A. E. Criswell, Charles E. Riordon.