The motion picture projectionist (Nov 1929-Oct 1930)

Feb ruary, 1930 The Motion Picture Projectionist 41 allowing a screen to remain dark in order to allow dialogue to run to its completion. While as I realize that this angle is entirely irrelevant to the main points developed by Mr. Broadbent, it might be wise to publish this for the benefit of those who may be laboring under a misapprehension as a result of the statement quoted. — Walter Silver, Brooklyn, N. Y. Sir: — I, like the great majority, agree that the continued splicing of film impairs synchronization to a large extent. I feel that a vast improvement over present practices could be effected by the use of double reels. In changing over from the outgoing to the incoming projector it is very difficult to cut the former on the last frame of the reel and at the same time catch the incoming projector on the first frame. It can be done, of course, but many times the sequence leader shows on the screen. Even if such an accurate changeover could be made, the sound track registers 14%" below the aperture, so there would be no sound for that fractional time used in changing over, particularly when the ending and beginning of both reels are synchronized, as often happens. I suggest thac all exchanges send film out in double reels. — S. Santorelli, Morristown, N. J. New Protective Film Process Essem Laboratories, Washington. D. C, has closed with M-G-M and Universal whereby these companies will use Perfexit, protective film process. The two companies will process about 6,000,000 feet a week under this system. Deals for the process are pending with a number of other major companies. The coating does not increase the thickness of the film, the company points out. Instead the solution is entirely absorbed by the film and makes the film more pliable, retards shrinkage and buckling, extends its life and is humidity-proof and scratchproof. One result of the process is that it holds the gelatine in status quo. The solution is fireproof and will extinguish a lighted match thrown into it, according to company tests. The solution is applied by an automatic machine capable of processing at any rate of speed up to 10,000 feet an hour. In other words a machine occupying a space of six inches by four feet of floor space will process at the mentioned rate. This process can be applied in combination with, or independent of, the drying cabinet in laboratories. The process is especially of value in connection with color and wide film, according to the company, and broad and valuable claims have been granted on the process. Dr. L. L. Steele, formerly of the Bureau of Standards, and inventor of the process, is consulting chemist. Do you want a ~ motor generator for your projection machines that is MORE Ruggedly Constructed, Vibrationless, Noiseless, Compact and Trouble-free? One that will maintain perfect alignment throughout years of service, and give a more constant voltage due to the uperior design and perfect construction of the motor anc ROTH BROTHERS & CO. Division of Century Electric Company, St. Louis, Mo. 1400 W. Adams St., Chicago, HI. New York Office: CENTURY ELECTRIC CO., 50 Church St. Offices in all principal cities of the world Manufacturers of Emergency Light and Power Plants. Installing Super-Lite Lens Instructions for installing the bifocal Super-Lite projection lens recently introduced by Projection Optics Co. of Rochester, N. Y., as supplied by that company are as follows : For Silent Film 1st — Turn ring on mount until the optical system is fully extended. This is the correct E. F. for silent film. 2nd — Install lens in machine and revolve entire mount until picture moves over to the extreme right. Then focus sharp on screen and clamp tight in machine. For Sound Film 3rd — Now reverse the turn with the ring and the system will increase the size of picture and at the same time move the picture over to the left, while the right side of the picture practically remains stationary. Focusing Picture 4th — A little practice by the projectionist with the shifting movement of picture will enable him to get the picture to fit in the screen for both silent and sound film, as it will require a little experience with this system to get the eccentric movement to work perfectly. If picture is focused sharp on one extreme and not on the other, a slight turn of the focus movement on machine will correct it instantly.