Motion Picture Herald (Apr-Jun 1931)

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158 Seller Theatres Section April 11, 19 NiCW InVdltlOnS • • niustraled descriptions of devices related to motion pictures and allied crafts, recently published by the U. S. government and selected for Better Theatres by William N. Moore, patent specialist of Washington, D. C. 1,778.674. APPARATUS FOR TRANSMITTING PICTURES. Ray D. Kell, Scotia. N. Y.. assignor to General Electric Company, a Corporation of New York. Filed May 29. 1928. Serial No. 281,486. 3 Claims. (CI. 178—6.) 1. Picture receiving apparatus comprising a rotatable disk having a series of light openings therein, an alternating current power supply circuit, a driving motor for said disk connected with said circuit and a synchronizing and framing device for said disk comprising cooperating magnetic members, one of said members being rotatable with said disk and the other of said members being angularly adjustable and having a winding connected with said circuit. 1,775,630. INDICATOR FOR PHOTOGRAPHIC APPARATUS. Arthur W. Caps, Rochester, N. Y'., assignor to Photostat Corporation, Providence, R. I., a Corporation of Rhode Island. Filed July 2, 1928. Serial No. 289,760. 11 Claims. (CI. 95—90.) 1,776,123. SOUND RECORD. Jay Cleis Kroesen, Belleville, N. J. Filed Apr. 7, 1928. Serial No. 268,090. 6 Claims. (CI. 274—43.) 1. In a transparent light sensitive endless film, a narrow sound record thereon and disposed in helical relationship with respect thereto. 1,764,938. METHOD OF PRODUCING TAI^KING-MOTION-PICTURE FILMS. Lee De Forest, New York, N. Y., assignor to De Forest Phonofilm Corporation, New Y'ork, N. Y., a Corporation of Delaware. Filed Apr. 27, 1927. Serial No. 187,026. 2 Claims. (CI. 95—75.) 1. In a photograpliic apparatus, the combination with a chamber, of means for holding a sensitized sheet therein, a shaft within said chamber and having one end extending through a side wall thereof, an arm on said shaft, means tending to move said arm across the path occupied by a sheet held in said holding means and permitting displacement of said arm by a sheet, and an indicator connected to the end of said shaft outside of said chamber, said indicator being movable in accordance with movements of said arm and thereby registering the presence or absence of a sheet in said holding means. 1,778,6351. MOTION-PICTURE PBO-JECTOR. Charles L. Heisler, Schenectady, N. Y"., assignor to General Electric Company, a Corporation of New York. Filed Feb. 26, 1929. Serial No. 342,801. 9 Claims. (CI. 248 — 47.) 2. The method of producing a positive film having sound and picture records thereon from a negative having sound and picture records thereon comprising exposing the picture area of said positive to the picture record of said negative, longitudinally displacing the positive and negative films relatively to each other and exposing the sound area of said positive to the sound record of said negative to produce a positive having the sound and picture records separated a predetermined distance. 1,776,207. PROJECTING MACHINE. Emanuel E. Wagner, Lamar, Mo. Filed June 29. 1928. Serial No. 289.101. 8 Claims. (CI. 88 — 27.) 1. In a device of the class described, a plurality of rotary carriers for mounting picture slides, the axes of rotation being at an angle to each other, means for mounting the slides at an angle to the axes of their respective carriers, the slides of respective carriers being in approximate alignment when In display position, illuminating means positioned to throw parallel beams of light radially of the rotary carriers and outwardly through slides at corresponding portions of the circumference of the two carriers, single means for actuating the two carriers continuously, and mechanism effecting display of a slide on one carrier and the other, alternately. 1. A motion picture projector support comprising a tiltable I^ase having a pair of fixed front legs, a Ibearing socket at the rear portion, a member having a second pair of legs and a shank rotatably and slidably mounted in said socket, the axis of said socket being inclined with a floor upon which the projector support rests, such that the member adjusts itself rotatably to cause all four legs to engage the floor but is frictionally retained against sliding further into the socket.