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)

678,185 rotate the same, and a recessed disk or circular plate adapted to engage the depressions in the slotted wheel so as to intermittently hold the drum stationary, whereby a very 5 light and small drum may be employed and a gradual start-and-stop intermittent motion imparted to said drum so as to avoid racking and jolting of the mechanism and unnecessary wear and strain upon the film, substantially io as described ' 9. The combination with a film or strip, of a feed-drum engaging the film so as to impart movement thereto when rotated, a shaft to which said drum is secured, a tension device 15 for holding the film, a second drum engaging the film so as to draw or force said film past the tension device, a peripherally -slotted wheel rotating with said drum, a rotating element provided .with a lateral projection jo adapted to enter the slots and engage portions of the wheel so as to intermittently rotate the same, means for intermittently holding the slotted disk and drum stationary for intervals of time in excess of the intervals of 25 rotation, a shaft to which the rotating element is secured, together with a sprocketwheel and chain connection between this latter shaft and the feed -drum shaft so as to be simultaneously operated, whereby simple 30 operating mechanism and a very light and small drum may be employed and a gradual start-and-stop intermittent motion imparted' to said drum so as to avoid racking and jolting of the mechanism and unnecessary weai* 35 and strain upon the film, substantially as described. 10. The combination with a film or strip and means for intermittently moving the same so as to successively expose the pictures 40 thereon, of a tension device provided with three or more yielding parts or members for holding the film so as to insure prompt action of one or more of said members the instant the film has moved the desired distance, sub 45 stantially as described. 11. The combination with a film or strip and means for imparting movement to the same, of a tension device provided with three or more independent spring-pressed members 50 or parts for yieldingly holding the film so as to insure prompt action of one or more of said members the instant the film has moved the desired distance; the upper member exerting less pressure than the othe/s and serv 55 ing to act as a brush to clear the film of dust as well as to exert tensiou on said film, substantially as described. 12. The combination with a film or strip, of a tension device comprising a stationary mem 60 ber, three spring-pressed members arranged one above the other and adapted to yieldingly press the film against said stationary member, and guides arranged upon the upper and iower iiembers for alining the-film j said np 65 per member exerting less pressure upon the film than the other members and serving also as a brnsh to free the film from dust, substantially as described. 13. The combination with a film or strip, of a tension device, means for intermittently jc moving said film so as to impart a step-bystep movement thereto, and mechanism for feeding the film so as to provide slack therein between the same and said tension device; said tension device being provided with three 75 yielding parts or members for holding the film so as to insure prompt action of one or more of said members the instant the film has moved the desired distance, substantially as described, 80 14. The combination with a film and mea-sfor operating the same so as to successively expose a portion thereof, of two or more banks of spools or rollers around which the film passes, each comprising two series or rows of 85 rollers of varying diameters forming a series of pairs, the banks being opposed to each other, and the rollers of one bank opposed to the spaces between the rollers of the oppositebank, so that the film may pass around the 90 larger rollers of one bank to the smaller rollers of* the other bank successively, and then around the larger rollers of the latter bank to the smaller rollers of the first-mentioned bank in a similar manner, whereby a great 95 length of film may be arranged in a very compact space, substantially as described. 15. The combination with an endless film and means for operating the same so as to successively expose a portion thereof, of a 100 casing or closure provided with a cover or lid and guiding-slots through which the film may pass, and two banks of spools or rollers around which the film passes, each comprising two series or rows of rollers of varying 105 diameters forming a series of pairs, the banks being opposed to each other and the rollers of one bank opposed to the spaces between the rollers of the opposite bank, so that the film may pass around the larger rollers of one 1 10 bank to the smaller rollers of the other bank successively, and then around the larger rollers of the latter bank to the smaller rollers of the first-mentioned bank in a similar manne», whereby a great length of film may be ar 115 ranged and protected in a very small space, substantially as described. 16. The combination with an endless nlm. and means for operating the same so as to successively expose a portion thereof, of s no cas\ng or closure provided with a cover or lid, guiding-slots through which the film passes, a guide-roller for the film arranged adjacent to one of the guiding-slots, and two banks of spools or rollers around which the film passes, 1*5 each comprising two series or rows of rollers of varying diameters forming a series of pairs, the banks being opposed to each other and the rollers of one bank opposed to the spaces between the rollers of the opposite 130 bank, so that the film may pass around the larger rollers of one bank to the smaller roll