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)

Record Details:

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089,068 across the field of the lens, fa the nOvol moans employed for rendering -the feeding of the film uniform, in the novel means employed for marking the film to permit exact registry 5 of prints mado therefrom, in the novel moans employed for reeling up the film after exposure and preventing the accumulation of unreeled fjlm in the camera, and in the novel combination, construction, and arrangement xo of the parts of the apparatus. Tho objects of my invention are, first, to provide a camera for taking a rapid succession of views of moving objects which shall be capable of taking larger views and of giv 15 ing longer exposures than the devices for similar purposes heretofore used; secoud, to provfde a film or strip feeding mechanism capable of the intermittent feeding of longer lengths of film than has been practicable with 20 the film-feeding mechanisms heretofore used and which shall be free from jar and vibration in its operation; third, to provide a film or strip feeding mechanism which shall not require previous perforation or other special 25 preparation of the film and which shall not be liable to failure in operation owing to the slipping of the film; fourth, to provide a film or strip feeding mechanism which shall not wear, tear, or otherwise injure the film ; fifth, 30 to provide meano for marking the film at the tim^and place of each exposure and to facilitate the bringing into registry of prints made from the film when the different views are to be mounted separately; sixth, to provide 35 means for reeling up the film which shallprevent accumulation of loose film within the camera, and, seventh, to make the camera simple in construction, compact, portable, and easy of operation. These objects are at 40 tained in the camera herein described and illustrated in the drawings which accompany and form a part of this application, in which the same reference -numerals indicate the same or corresponding parts, and to which — 45 Figure 1 \s a side view of the camera, the side of the inclosing case having beeu removed. Fig. 2 is a plan view of the camera, the top of the inclosing case having been removed; and Fig. 3 is a front view of the cam 50 era, the front of the inclosing ease having been removed and a portion of the shuttordisk having been broken away. In tho drawings, 1 is the inclosing case of the camera. 55 2 is the lerisj attached to the front of tho case 1, and 3 is a vertical frame-plate secured at the bottom to the bottom of the case 1, which supports the film carrying and feeding mechanism. 60 4 is the driving-shaft of the camera. It is mounted in bearings in the case 1, and one end projects outside of tho case and carries a pulley 5, by which it may be driven from a motor or other source of power. 65 Gisaspoolcarryingthostripof sensitive film upon which the photographs are to be taken. It is mounted to revolve upon a spindle 7, pro jecting from the frame-plate % and a spool from which the film has boon unwound may bo removed and a loaded spool placed on the, 70 spindle by removing the cotter-pin S. 9 is a spool upon which tho exposed film Is wound. It is mounted upon a shaft 10, which is revolubly mounted in a bearing within a boss 1 1 of the frame-plate 3 and is dri venrf rom 75 the driving-shaft 4 by bevel-gears 12 and 13. The spool 0 and shaft 10 are rotatably connected by a friction devico hereinafter described. 14 is the main film-feeding drum. It is se Sc cured to a shaft 15, having a bearing in a boss 16 of the frame-plate & and. is driven from the shaft 4 by a vormwheel 17 and worm IB Two small idle rolls 10 and 20 are mounted upon spindles 21 and 22 with their surfaces 85 in contact with or in close proximity to the surface of the dram 14. These rollers are loose upon their spindles and are driven only by friction with the drum 14 or the film-strip interposed between the rollers and the drum. 90 They serve to hold the film in contact with the surface of the drum. They are preferably composed of or have their surfaces covered with some .yielding and elastic substance, so that possible injury to the film may bo 95 avoided. 23 is a plate secured to and projecting at right angles to the frame-plate 3 and located in the focal plane of the lens, which forms a support for the film during exposure and 100 while the film is being punched, as heroinafter described. 24 and 25 are auxiliary film-feeding rolls, the function of which is to remove the exposed section of film and bring a fresh por 105 tion of the film into the field of the lens after each exposure. They, are geared to revolve together at the same rate of speed, and roller 24 is mounted upon a shaft 20, hav digits bearing in the frame-plate 3 and driven by bevel no gears from the driving-sSiaft 4. These rolls feed the film forward intermittently, the film being held and prevented from feeding across the plate 23 during about one-half of the revolution of the shutter-disk by the catch here 115 inafter mentioned, during which time the rolls slip idly over the film. Since they act only intermittently and must during the time of their action feed forward as much film as has been fed forward by the drum 1 1 and roller 120 10 during a complete revolution of the shutter-diskj they are arranged to revolve at twice or more than twice the peripheral speed of the disk 14. 27 is a flat spring secured at one end to the 125 framo-plate 3, tho other end being arranged to press the film-strip against the top of the backing plate 23. This spring forms tho catch by which tho film is held stationary in the field of the lens during exposure. Itsfree 13c end is upturned and is provided with a slot 28, in which works a pin 20, secured to a revolubly-raounted rock-shaft 30, having bearings in the frame-plate 3. The rock-shaft