Business screen magazine (1938)

Send for this FREE New Cine Bass Bargaingram #234 Fifty-two pages filled with cine news and bargains to delight the movie ian. Tyro, advanced amateur and professional alike will marvel at the completeness of this catalogue. Special sections for sound cameras and projectors — 8mm. and 16mm. Lists all popular makes of cameras, projectors, projection equipment — hundreds of accessories, in fact a real cine encyclopedia. Write Dept. BU. 179 West Madison Street CHICAGO, ILLINOIS FIVE TIPS FOR BETTER SHOWS CONTINUOUS MOTION PICTURES FOR EXHIBITS and DISPLAYS Action in Advertising Al TdMOTION Continuous 16 mm Motion Picture Projectors show clear, brilliant pictures in day or electric light. AUTOMOTION is the pioneer and leader in this field; designed and built to meet the heavy duty requirements of continuous motion picture projection. WORLD'S FAIR and other weU planned exhibits will use AUTOMOTION Projectors tor a low-cost sales message to thousands. Write for lull details, ADVERTISING PROJECTORS, INC. 10 West 33rd St., New York, N. Y. Telephone PEnruylvania 6-8567 1. DON'T USE INEXPERIENCED OPERATORS Here is a Number One don't. We have personally seen many otherwise excellent shows ruined by poor projection, due to the bungling efforts of "I know-all-about-it" operators. If your salesmen or dealers put on shows, make sure they know how to handle equipment, and that they are properly supplied with spare accessories — proper size screens, lenses, extra Mazdas, exciter lamps, proper take-up reels, etc. 2. GIVE THE AUDIENCE A BREAK Dont present uninteresting filins I i. e.. supplementary ones ) . nor films that have not been properly inspected before the show. Their condition should be carefully checked . . . torn, poorlypatched films should be avoided. Brittle, "raw" I untreated ) film should also be asiduously avoided. Check condition of sound track. Also avoid films that are too long, planning your show carefully in advance. Make sure speakers are on hand, and on time. Don't make your audience stand; seating should be adequate, and comfortable. 3. WATCH FILM "LOOPS" A generous upper loop should be left. Lower loop I between aperture and sound-head I must be correct, or sound will be seriously affected. Too much loop will cause sound to be "out of sink", as will also too little loop. The number of frames between center of film aperture and center of sound drum (i. e., sound slit! should be twenty frames on 35mm. projectors, 25 frames on 16mm. projectors. 4. REPAIRING FILMS Use a good splicer for repairing broken film or torn splices. Use also a good brand of film cement, one that will hold. It is a good idea to rub a cloth moistened with processing fluid over new splices to prevent possible catching or binding of film during projection. After splicing, the portion of sound track which has been exposed (from scraping off of emulsion) should be painted over with india ink to avoid issuance of an undesirable noise from speaker, which will otherwise be caused as splice passes over sound slit. 5. THREADING THE PROJECTOR It is highly important, both from the standpuint of better shows, and from that of protecting the film against harm, that the projector be correctly threaded. Film must be properly engaged in all sprocket teeth, and in aperture; take-up belt or spring in place of take-up reel pulley ; film placed properly on upper spindle and take up spindle; emulsion side of film toward projection-lamp. iVeic ill the lonimercial film industry is the I isOPhone slide [dm projector illustrated here. I right I a product of Sound Projects Company. Chicago. Introduced about six months ago. I isO-Phone is available in several models to producers and users oj industrial films. Light weight, small size, and improved sound tone are new features. The Da-Lite Challenger, one oj the most popular styles oj portable screens for industrial, educational and amateur use, is now made in 12 sizes. Three of the new sizes are square screens especially suited for the projection oj slidefilms. They can be adjusted to rectangular proportions for showing motion pictures. All sizes are roller-mounted. In the Automotion Projector, shoum above, the film revolves in a circle composed of rollers and is driven by a leather belt with perforated holes in the center, which is in turn motivated by a patented pulley sprocket with pins which engage the holes in the belt. These holes are spaced to synchronize with the sprockets on the machine. There are only two sprockets used, and they merely act as guides to lead the film to and from the projector head.