Exhibitors Herald World (Oct-Dec 1930)

84 Better Theatres Section October 25, 1930 SUPER-LITE LENSES WISELY CHOSEN BY AMERICA'S BEST THEATRES NEW BIFOCAL SUPER-LITE LENS F:2.0 A variable focus lens with a wide range of foci for both silent and sound film. SERIES III. SUPER-LITE LENS F:2.0 Standard full Half-Size lens furnished in short focus as low as 4" E. F. and up to 10" E. F. SERIES IV. SUPER-LITE LENS F:2.0 Full 3" diameter lens to meet the demand for more light for longer throws. 6" E. F. to 10" E. F. Quality Guaranteed PROJECTION OPTICS CO., INC. 330 Lyell Ave. ROCHESTER, N. Y. U. S. A. Mats, Runners A.S a protection to carpets and as a •'* means of keeping the theatre clean during bad weather mats and runners are used in theatre lobbies and aisles. Leather mats are most common in lobbies, having a mesh for dirt and slush to drop through. The irregular features of the leather mat surface prevent slipping. Runners for aisles and foyer are usually made of a hard material and are laid over carpets as a protection. Wear Proof Mat Company, 2156 Fulton Street, Chicago, 111. A Mazda Lamps Refer to LAMPS, MAZDA Mazda Regulators 'T'HIS is an electrical device for chang ing 110 volt or 220 volt current to 30 volt, 30 amperes current for use with 900 watt incandescent projection lamps. THE GARVER ELECTRIC CO., Union City, Ind. J. H. Hallberg, 29 W. 57th Street, New York City. A Miniature Golf Courses Refer to GOLF (MINIATURE), COURSES AND EQUIPMENT A Motion Picture Cable Refer to CABLE, MOTION PICTURE A Motor Generators Refer to GENERATORS, MOTOR A Motors, Electric TT is not a question of "whether the wheels go around" in the theatre of today but, rather, how they go around. Electric motor development has kept pace with the rapid strides made in other fields of the technical side of exhibition. With sound equipment the motor plays an increasingly important part in theatre operation. Baldor Electric Company, 4351-55 Duncan Street, St. Louis, Mo. General Electric Company, 1 River Road, Schenectady, N. Y. Continental Electric Company, 325 Ferry Street, Newark, N. J. The Ideal Electric & Manufacturing Company, Mansfield, O. Fidelity Electric Company, Lancaster, Pa. Hobart Brothers Company, 113 W. Water Street. Troy, O. Master Electric Company, Dayton, O. Robbins & Meyers Company, Springfield, O. The Wigginton Company. 436 N. Church Street, Kalamazoo, Mich. A Motors, Phonograph Refer to PHONOGRAPH MOTORS A Motors, Projector TVTOTORS for projection machines are 1 A usually 110 volts, 25 to 60 cycles and of 1/10, 1/8 or 1/6 horse power. They may be obtained with variable speed adjustments giving a range of speed of from 150 r.p.m. to 4,000 r.p.m. Bodine Electric Company, 2254 W. Ohio Street, Chicago, 111. Fidelity Electric Company, 331 N. Arch Street, Lancaster, Pa. A Music and Sound Reproducing Devices ]%/| USIC and sound reproducing devices are of two types, synchronous and non-synchronous. The latter use phonograph records, which are cued to the picture. The majority of these machines, which have from two to four discs for the records, are operated from the pit or other location in view of the screen. The synchronous type, however, is operated from the projection booth, employing disc records or film recordings made in conjunction with the picture. Non-synchronous instruments range in price from $275 up. The price range of synchronous equipment is quite wide, but may be said to be roughly from several hundred dollars to $10,000. Non-synchronous equipment, however, has importance among motion picture theatre apparatus primarily as an augmentation of the synchronous sound equipment. The non-synchronous device is commonly installed along with the synchronous apparatus, in the same manner that public address systems are added to the regular sound layout. Incidental music not provided for in the regular screen program, and entertainment for the standees in the foyers, may be supplied by the non-synchronous equipment. Among the developments in motion picture sound is the increase in the employment of the sound-on-film method of reproduction. Experiment has eradicated many of the disadvantages of this method and increased its advantages, and as a result one producer, long committed exclusively to the use of the sound-on-disc method of recording, has taken measures for the adoption of the film method also. Installation of both sound-on disc and sound-on-film reproducing equipment is thus recommended by authorities for theatres which in the early days of sound might have been advised to economize by installing disc equipment only. Amplion Radio Corporation, 133 W. 21st Street, New York City. Audio Products Corporation, 138 West Avenue, Long Island City, N. Y. Auditone Company, 23-27 S. Jefferson Street, Chicago, 111. Bestone, Incorporated, 1514 Davenport Street, Omaha, Neb. R. S. Burt Scientific Laboratories, 900-04 E. California Street, Pasadena, Cal. Clyne Enginering Company, 3500 Easton Avenue, St. Louis, Mo. Duofone, Inc., 2589 E. Jefferson Street, Detroit, Mich. ELEC-TRO-FONE CORPORATION, 2490 University Avenue, St. Paul, Minn. ELECTRICAL RESEARCH PRODUCTS, INC., 250 W. 57th Street, New York City. FOTO-VOICE COMPANY, 817-819 Granby Street, Norfolk, Va. Film Sound Corporation, 1825 E. 18th Street, Cleveland, O. The Film Speaker Company, 1305 N. Hudson Street, Oklahoma City, Okla. Gates Radio & Supply Company, Quincy, 111. GENERAL TALKING PICTURES CORPORATION, 218 W. 42nd Street, New York City. Good-All Electric Manufacturing Company, OgalltJa, Neb. The Link Company, Inc., Binghamton, N. Y. Gries Reproducer Corporation, 459-485 E. 133rd Street, New York City. The D. R. Kautz Company, 2115 Madison Avenue, Norwood, O. MELLAPHONE CORPORATION, Keith-Albee Theatre Building, Rochester, N. Y. The Multiphone Company, 1199 Delaware Avenue, Detroit, Mich. Mills Novelty Company, 4110 Fullerton Avenue, Chicago, Illinois. National Motion-Ad Company, 2448-59 Prairie Avenue, Chicago, 111. The Natural Voice Amplifying System, 1418 Walnut Street, Philadelphia, Pa. Oliver Manufacturing Company, 2209 Payne Avenue, Cleveland, O. The Orchestratone Company, 42 W. 18th Street, New York City. The Orchestraphone Company, 1134 W. Austin Avenue. Chicago, 111. The Oro-Tone Company, 1010 George Street, Chicago, 111. Pacent Reproducer Corporation, 250 W. 39th Street, New York City.