The Moving picture world (October 1921)

954 MOVING PICTURE WORLD October 22, 1921 it won't work where the hght beam from the condenser is inclosed. Try it out, and let us hear what you think of it. They tell me it won't show on the screen at all, and I think while this may not be entirely true, still it won't show enough to be really noticeable. S. M. P. E. Meeting The Society of Motion Picture Engineers will meet in Buffalo, N. Y., in the front part of November. The program promises to be very interesting. N. N. Ott, of the Spencer Lens Company, Buffalo, N. Y., is preparing a paper dealing with optical glass. Dr. W. E. Story, Jr., has been making some tests comparing the relative efficiency of large and small condensers (presumably meanuig large and small diameters). He will give a talk on this subject and if you ask me, this talk ought to be both instructive and very interesting. Harry Levey, of the Harry Levey Corporation, is preparing a paper on Industrial Mechanigraphs, which will be accompanied by a film demonstrating his work. L. A. Jones, of the Eastman Kodak Company, will give a talk on studio lighting as it alTects the eyes of those working in studios. F. H. Richardson will read a paper dealing with the film reel, its present faults and giving suggestions for needed improvements. Charles P. Watson, of the Novograph Film Corporation, will read a paper on the Analysis of Motion. A. D. Cameron, of the General Electric Company, will give a talk on the commercial applications of the high intensity arc. C. A. B. Halvorson will give a demonstration of the "Point Source of Light." N. N. Ott of the Spencer Lens Company, will talk on the manufacture of lens glass and its conversion into lenses. C. F. Jenkins will give a demonstration of pictures he has taken with his high speed camera at the rate of 1,500 pictures per second. Dr. A. B. Hitchins, of the Ansco Company will read a paper on testing and maintaining photographic quality of cinematographic emulsions. In Charge of Projection L. W. Giger, Winston-Salem, N. C, inclosing $3.00 for renewal of subscription says: I am sendiriK you a photosrnph taken September 1, which was the last of the free summer shows given every Tuesday and Thursday during school vacation. The free show for children starts at 10 A. M. It consists of educational and scenic pictures, which usually last about one hour and thirty minutes. I am employed by the Piedmont Amusement Company, which operates four theatres in Winston-Salem. I am in charge of the pro YOU KNOW What it co(ts you to own a RICHARDSON HANDBOOK DO YOU KNOW What it it costing you not to own one? Remember it is always safer to deal with the known quantity than unknown. Send $4.00 today for this 700 page book of projection information, fully illustrated and interestingly written. More Richardson Handbooks sold in 1920 than in any previous year. MOVING PICTURE WORLD S16 FIFTH AVENUE NEW YORK Wc tried to give you something that was really worth while, and the fact that both have withstood the criticism of years is pretty conclusive evidence that they are good. jection end of things, and by the aid of the Handbook and lens charts I have the optical trains of the projectors lined up O. K. . I would not take any amount of money for the Handbook or lens charts if I were unable to get another copy of them. In the Auditorium we have a Hertner BO50 Transverter, two Simple.\es and a spot; in the Pilot a G. E. motor generator set and two Power's projectors; in the Broadway a Westinghouse motor generator set, and two Motiograph projectors; in the Elmont we tiike A. C. through a Ft. Wayne Compensarc and have two Power's projectors. Marred bv Wirinxj The free show stunt looks to me like a good one; also I might add that the front of your theatre is very pretty indeed, but its beauty is sadly marred by the wiring. If it were my house, I would not permit such a crude job of wiring as is shown. Make the light company run the wires concealed, or if not concealed, at least let them put them up at least half way decently. 1 am glad that you like the Handbook and lens charts. Both the book and the charts were the result of great and very trying labor. Machine and Projector More and more we are coming to understand the tremendous force that psychology wields in the affairs of men. I do not wish to preach a sermon this morning, but I am interrupting important business because a thought has occurred to me which I believe ought to be laid before )'ou. I have been endeavoring, with more or less success (sometimes I think less, rather than more), to induce the various manufacturers of projection apparatus to abandon the term "motion picture machine," and substitute therefor either motion picture projector, or just simply projector. In the mind of the average man this, at first glance, seems either foolish and entirely silly, but you may take it from me, gentle reader, that it is neither the one thing nor the other. It is, instead, a matter of very large importance. Speak to the average exhibitor or theatre manager of a motion picture machine, and he instantly and immediately, though unconsciously, visualizes projection as a more or less purely mechanical operation, and down in the bottom of his mind is the idea that "any fool can run a machine." This has the effect of cheapening the 7ihole proposition of projection in the mind of the exhibitor. On the Other Hand On the other hand, speak to the exhibitor of a projector, and instantly, though unconsciously, the mechanical idea is eliminated, and he visualizes not a machine, but the projection of pictures. Silly, do you say? Well, let us see a moment how those things work. Recently the whole country has been more or less torn up and excited over what we call the daylight saving law. And what is the daylight saving law? Answering my own question, it amounts to just this. We do not in the least degree mind getting up an hour earlier than has been our custom, provided the clock says it is the usual time. In other words, if we have been getting up at 8 o'clock, we are perfectly willing to, and do not even notice that we are getting up at seven if the clock has been changed and says it is eight. That is nothing in the world but an application of psychology. It is utterly idiotic, but a good many millions of us know that it is the FACT. Do not turn up your nose, my friend, at these psychological effects. Cut out the machine end of it and speak of the projector. Cut out the "operator" and speak of projectionist. Do not talk about "coops" and "booths," but of projection rooms, because these various things, while they may sound silly, the fact nevertheless remains that the substitution of the modern terms for the old ones will work vast benefit to the profession of projection. THE AUDITORIUM. WINSTON-SALEM. N. C. Showing the children who attended one of the free Tuesday and Thursday shows From Clearfield, Pa. Dorsey Davis, Clearfield, Pa., says : I am still a reader of the department from which I derive much valuable Information. Although I have been projecting for about nine years, there is still a lot for me to learn. I am employed as chief projectionist of the Globe and Driggs Theatres in this place. At the Driggs we get fine results using two Power's 6B projectors, and a Hallberg 50-70 ampere converter, pulling about 50 amperes at the arc. The optical line-up, two 6V4 inch condensers, spaced 1-16 of an Inch apart. The distance from center of the front condenser to aperture Is 17 '/4 Inches. Objective lines are 5V6 inch E. F., using 3% inch working distance. I have the revolving shutter set at aerial image, and trimmed down to actual requirements. This gives me a flickerless picture, even at 55 feet per minute. The distance of projection Is 86 feet, and the angle about fifteen degrees, with the screen tilted slightly. Have recently Installed a framing light inside of each mechanism. These light automatically when the gate Is open, and even a very dense film may be threaded In frame,