Exhibitors Herald World (Oct-Dec 1930)

62 Better Theatres Section November 22, 1930 INI^W InVCntlOnS • • illustrated descriptions of devices related to motion pictures and allied crafts, recently published by the LI. S. government and selected for Better Theatres by William N. Moore, patent specialist of Washington, D. C. 1,765,453. TELEVISION APPARATUS. Gilbert T. Schmidling, Chicago, 111., assignor to Alva J. Carter, Chicago, 111. Filed Mar. 1, 1929. Serial No. 343,644. 2 Claims. (CI. 178—6.) C=3L •&■* 1. In television apparatus, a device having means for directing a beam of light through a scanning disk and a lens, means associated with said lens for directing the light emanating therefrom in any one of several directions comprising an arm on said device having an extension projecting to a point adjacent the outer end of said lens, and a mirror adjustably mounted on said extension in the field of view of said lens. 1,766,103. APPARATUS FOR DEMONSTRATING SOUND-ABSORBING PROPERTIES. Charles F. Burgess, Bokeelia, Fla., assignor to C. F. Burgess Laboratories, Inc., Madison, Wis., a Corporation of Delaware. Filed June 19, 1929. Serial No. 372,013. 7 Claims. (CI. 181—0.5.) 1. Apparatus of the class described, comprising a vibration absorbing construction, a controllable sound generating device therein, a duct for conveying sound from said device and a member to be demonstrated having a passage therethrough in communication with said duct. 1,765,998. TITLE ATTACHMENT FOR SOUND CAMERAS. Freeman H. Owens, New York, N. Y. Filed July 13, 1927. Serial No. 205,448. 10 Claims. (CI. 88—16.2.) 9. In combination, means for recording a sound record on a film, a second film shiftable laterally and bearing a plurality of titles in parallel arrangement, means for synchronously moving said filmH, and means for titling said sound recording film simultaneously with the recording of a sound record thereon. 1,776,046. SOUND-REPRODUCING SYSTEM. John O. Prescott, Glenbrook, Conn., and Frederick A. Kolster, Palo Alto, Calif., assignors to Federal Telegraph Company, Newark, N. J., a Corporation of California. Filed Jan. 7, 1929. Serial No. 330,952. 2 Claims. (CI. 179—100.3.) 1. A sound reproducing system comprising a rotary mechanism, a casing arranged to be mounted downwardly upon said rotary mechanism, an annular raceway positioned round the interior periphery of said casing, a photographic sound record having its outer periphery terminating in an annular member rotatable with respect to said raceway, a photo-electric cell projecting through one side of said casing to a position adjacent said photographic sound record, a light beam projecting device extending through the opposite side of said casing to a position adjacent said photographic sound record, and means for simultaneously shifting said photo-electric cell and light beam projecting device at a speed proportioned to the rate of rotation of said photographic sound record. 1,771,590. MOTION-PICTURE CHANGE-OVER DEVICE. Lawrence D. Strong, Maywood, 111. Filed Aug. 2, 1926. Serial No. 126,699. 3 Claims. (CI. 88—17.) 3. The combination with a plurality of projecting machines, of electrically operated means for cutting off light from each machine, said means being placed between the projecting machines and the screen and being entirely independent in construction and operation from the projecting machine, circuits from a source of electricity to said means, and switches arranged in said circuit so that when any one of said means is opened all of the others will be closed. 1,774,382. VARIABLE LIGHT PRODUCING APPARATUS. Edward W. Kellogg, Schenectady, N. Y., assignor to General Electric Company, a Corporation of New York. Filed Mar. 25, 1927. Serial No. 178,478. 6 Claims. (CI. 179—100.3.) TO SOURCE Of SOUND CUfJffENTS. '-/wv\ 7 1 — mm 1. In apparatus for producing light variations in accordance with variations in a controlling current, the combination of a discharge lamp having means providing for a plurality of arcs therein in parallel, means supplying exciting current for said arcs, and means for causing the controlling current to vary the relative distribution of exciting current to said arcs. 1,771,029. MOTION-PICTURE FILM AND METHOD OF PRODUCING. Jakob Burkhardt, Detroit, Mich., assignor to Third Dimension Pictures, Inc., New York, N. Y., a Corporation of New York. Filed Jan. 2, 1929. Serial No. 329,693. 20 Claims. (CL — 88-16.) 13. The method of producing motion picture films from a negative consisting of a pair of background pictures and a negative consisting of foreground pictures, the foreground pictures being taken before a plain background so that the foreground appears as black on white, including making a dupe from the foreground negative and treating to eliminate the foreground detail so that the foreground becomes white on a black background, and printing the background and the foreground in alternating relation and the dupe in superimposed relation to the background. 1,761,745. SPEAKER. Roy J. Pomeroy, Hollywood, Cal., assignor of one-half to Paramount Famous Lasky Corporation, Los Angeles, Cal., a Corporation of New York. Filed Aug. 9, 1927. Serial No. 211,835. 9 Claims. (CI. 181—32.) 1. In sound producing apparatus, the combination of a primary vibratory diaphragm flexibly supported so that in vibration the diaphragm moves substantially bodily, and an auxiliary vibratory diaphragm enclosing a space at one side of the primary diaphragm.