Memorandum for the the Motion Picture Patents Company and the General Film Company concerning the investigation of their business by the Department of Justice / submitted by M.B. Philip and Francis T. Homer. (1913)

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doing this was the sprocket wheel, like th^it of the Kdiaon reissue (or Its equivalent), the teeth of which entered the holes in the edges of the riotion picture film. If Ihe device of the i^dison reissue for advancing, the filiri were employed, it would £3 it was organited, require the teeth to pull the film against the devices from which it was unrolled, ahd it wsa liable to be torn at the hole3 near the edges, particularly after bein^ used in the projecting machine a number of times, as is customary, and the pictures would not be -advanced with regularity or to proper position, which caused them to blurr when projected on the screen, where they appear increased i'site as large as one hundred und fifty times thnt of the pictures on the film, thus exaggerating any slight difference in position to which tli?) film was moved each time due to the more or less tearing of the film at th^ holes by the sprocket pins or equivalent devices. The gist of the invention made by Latham consisted in providinj^ a device for feeding the film regulad y so that a loop or slack was formed before it reached the sprocket feeding device, :-nd so that the latter had to act only against such slack film ';t the aperture ^fjiere It was exposed, and there was no liability of the pins on the sprocket wheel tearing the film ne-'.r the hole^ at the edges of thv film. -14