International projectionist (Oct 1931-Sept 1933)

July-August 1933 INTERNATIONAL PROJECTIONIST 25 much better than the other lines; and furthermore, until such time as means are developed that will make it unnecessary for the projectionist to use spy glasses or to go within 20 feet of the screen, we shall have to do the best we can with the system that we have. Mr. Kurlander: The reason, I think, why titles were so effective in showing up travel-ghost was simply that the titles approximate horizontal lines and were small in comparison with the travel-ghost. Not much travelghost is needed to show in a title. But in the proposed test target, the figure is large, and one can not see much travel-ghost in a figure of that size. With respect to the alignment tool, it is very difficult to induce projectionists to use tools of any kind in aligning their equipment. A similar tool was tried years ago and a few conscientious projectionists used it. But the larger number of projectionists didn't care and they did not use it; that is why the tool went out of use. I doubt whether such a tool will find extensive use. ' Member: Has anyone looked into the possibi)ity of designing some device for adjusting the optical system? Mr. Rubin : This Committee has been endeavoring to obtain the cooperation of the manufacturers in designing such tools, but up to the present we have had no such cooperation. The Committee would be very happy to have the cooperation of every manufacturer. With the help of the RCA Victor Co. we were able to prepare the test reel that you saw today. We have in mind a number of other tools and have invited many manufacturers to cooperate in the work. I am sure from this discussion here today that something will be done. Member: Why should the device for testing equipment exist separately from the equipment itself? There is a possibility that the operator will pay no attention to a separate piece of equipment, whereas if the equipment is made part of the main apparatus he may be induced to look at it occasionally. Mr. Rubin: The lens manufacturer may have a little gadget for his lens, but what about the mechanism, and the sound head, and the condensers, and the lamp, and other elements that go with it? Member: Are there no graduations on those things to show when they are correctly aligned? Couldnt they be extended? Mr. Rubin: Probably they could. But this Committee is working with material already in the theaters; we must obtain the best results with the equipment that is in the field. Present Equipment Considered Dr. Goldsmith: The point that has just been brought out is well taken. There are two ways of determining the momentary condition of a piece of equipment. One is by means of some SUPER INTENSITY AUTOMATIC PROJECTION LAMP H. C. 10 Super Intensity Lamp The Lamp With Accurate Arc Regulation and Arc Focusing by Means of the Heat From the Arc Itself H. C. 10 Features: • Self-Starting • Self-Focusing • Independent Negative Feed Regulation • Magnetic Stabilization • Better Arc • Self-Lubricating Bearings • Standard Ammeter • Carbon Indicator • Forced Air Cooling • Correctly Shaped Hood • No Feed Rollers • Full 22-inch Trim Descriptive booklet on request. Write for it to HALL & CONNOLLY, Inc. 24 Vandam St. New York, N. Y.