Motography (Jan-Jun 1915)

June 26, 1915. MOTOGRAPHY 1047 Recent Patents in Motography REVIEWED BY DAVID S. HULFISH 1,108,838. Color Camera. V. L. Duhem, assignor to Vim Motion Picture Co., Oakland, Calif. The camera has two lenses, one above the other. Each lens has its permanent color filter, the film passing both lenses and receiving the color images in alternate order. 1,109,917. Printer. A. F. Gall, assignor to New Jersey Patent Co., West Orange, N. J. A negative is moved in steps in one direction, another negative is moved in steps in the opposite direction, and by projected light a single composite print is made from both the negatives. 1,111,229. Projector. H. L. Momyer, Dallas, Tex. The film moves with a steady motion from feed to take-up and the whole projecting system moves downward at the speed of the film during projection, returning between the successive pictures. 1,111,767. Safety Device. D. O. Seaman, Des Moines, Iowa. The projector is stopped and the fire shutter operated in case the upper feed loop becomes taut. 1,114,730. Projector. J. Butcher, Brooklyn, N. Y. The projection is from an opaque picture strip. 1,115,196. Shutter. Lucien Hermand, Rouen, France. Two disk shutters rotate in opposite directions and are connected by an idler bevel gear. By adjusting the position of the bevel gear an adjustment of the shutters is attained. 1,115,538. Shutter. F. W. Hochstetter, assignor to H. P. Patents and Processes Co., New York, N. Y. The shutter is a vertical slide and is driven by a cam of irregular design. 1,115,586. Rewinding Device. W. R. Schwab, assignor to Cameragraph Co., Kansas City, Mo. The feed reel of a camera has a stop device which will operate to stop rewinding when the rewinding has equalled the amount just unwound. The film leader cannot be brought back into the feed box. 1,116,453. Synchronizing System. S. Lubin, Philadelphia, Pa. A disk and an indicator hand are driven by the talking machine and the projector at the same speed. They carry electric contacts which close an alarm circuit whenever the speed of the two parts is not the same. 1,116,580. Unwinder. E. B. Feaster, assignor to Byron Chandler, New York, N. Y. The film is unwound from the center of the feed reel. The novel feature of this device is that a sprocket wheel within the feed magazine engages the film inside the reel and unwinds it positively at the desired speed, the film being subsequently turned in direction and brought to the motion head. Reissue 13,824. Film Feed. W. J. Symons, R. J. Boyle and W. A. Blaind, Belleville, Ontario, Can., assignors of parts to H. O. Stewart and S. R. Burrows, Belleville, Can. (Original No. 987,506.) The film is fed from the center of the feed reel. The feed reel is horizontal and is positively driven by the motion head driving mechanism, the ratio of gear being automatically changed to give the feed reel the proper speed. 1,117,239 and 1,119,115. Treating Motion Picture Films. Nicholas Power, Brooklyn, N. Y. The method of treating motion picture films which consists in subjecting the marginal parts to a heat sufficient to melt all matter fusible at a temperature to which the film is subjected in a projecting machine, yet keeping the picture portion of the strip comparatively cool. 1,117,659. Fire Shutter Latch. A. F. Gall, assignor to New Jersey Patent Co., West Orange, N. J. The fire shutter may be latched out of the way while the film gate door is open, but the act of closing the door unlatches the fire shutter. 1,118,289. Screen. P. A. W. Jurschewitz, St. Petersburg, Russia. For producing plastic or stereo projection, the screen is a rapidly revolving wheel, the picture being seen upon the spokes and the background being seen beyond. The spokes are adjustable as to width. 1,118,512. Indicator. Nicholas Power, Brooklyn, N. Y. The door of a fireproof magazine has a revolving indicator hand which is driven by the reel within; the hand thus shows whether the reel is moving. 1,119,451. Safety Attachment. Nicholas Power, Brooklyn, N. Y. A closed guide extends from the lower steady feed sprocket to the take-up magazine, protecting from fire, and so restricting the film that the sprocket pushes the film into the magazine. 1,119,489. Take-Up. G. W. Bingham, Shelburne Falls, Mass., assignor to The Bingham Mfg. Co. The film is wound into the take-up magazine with its leading end outside, winding inwardly toward the center, the film being guided positively against the inner wall of the growing reel, and the Fig. 1,119 take-up magazine reel being turned by the push of the incoming film. 1,122,192. Screen. _ P. L. Clark, New York, N. Y. A screen for picture projection, comprised of plates, each plate containing a large number of small curved reflecting elements. 1,122,455. Color Motography. M. L. Wohl, New York, N. Y., and Max Mayer, Brooklyn, N. Y., assignors to Panchromotion Co., Inc. The pictures are taken upon a strip of film with four color screens in rotation and are projected Fig. 1,122,455. similarly with four color screens in rotation. The color screen has the four colors arranged in two dissimilar sets of two colors each, each set being composed of complementary colors, the colors of the one set overlapping those of the other set and extending over a different section of the spectrum. 1,123,185. Talking Pictures. W. B. Featherstone, Washington, D. C, assignor to Arthur Brown, trustee, Kansas City, Mo. The projector and the talking machine are located together in the projecting booth and the talking machine speaks to telephone transmitters which then transmit electrically to loud-speaking telephones located behind the picture screen. A number of loud-speaking telephones are used, located behind different parts of the screen, and a distributor for the electric telephone circuit' switches the current to that particular loud-speaking telephone^which is just behind that part of the screen from which the sound should emanate. The voice of an actor thus is made to follow the image of the actor, and different actors on the screen are made to speak from their different locations, adding to the illusion of the production. 1,123,664. For Improved Framing Mechanism. Issued to George W. Bingham, New York, N. Y. In a projecting machine where the film shift is of the "beater dog" or any similar type, the shift is attained by a device without sprockets which drags the film down by a distance along the film in the film window which is exactly equal to the amount of film which has been taken up by the lower, steady-feed, take-up sprocket. To ac