International projectionist (Jan-Dec 1947)

INTERNATIONAL HOECTH With Which Is Combined Projection Engineering HENRY B. SELLWOOD, Editor Volume 22 MARCH 1947 Number 3 Index and Monthly Chat 5 Studio Super H. I. Carbon Arc Lamps 7 Peter Mole Magnetic Recording Symposium by Academy 9 Prefab Theatre Projection Setup 10 R. H. McCullough Television. Films and the Human Eye 14 Dr. Albert Rose Trade Unions in America . 16 John P. Frey Elements of Projection Optics. VI 18 Dr. Angelo Montani In The Spotlight 20 Harry Sherman New Simplex Plant 22 Carbon Developments in Germany 23 Automatic Acoustic Compensator 24 Robert A. Haines At Your Service 25 Presenting: George W. Murphy 26 A New Paper Tape Magnetic Recorder 29 RCA's New 1 kw. Brenarc Lamp 30 Sound Reproducing System Amplification Definitions, II . 33 Personal Notes 34 News Notes Technical Hints Miscellaneous Items Published Monthly by INTERNATIONAL PROJECTIONIST PUBLISHING CO., INC. 19 West 44 Street, New York 18, N. Y. R. A. ENTRACHT, Publisher SUBSCRIPTION REPRESENTATIVES AUSTRALIA: McGills, 183 Elizabeth St., Melbourne NEW ZEALAND: Te Aro Book Depot, Ltd., 64 Courtenay Place, Wellington ENGLAND and DOMINIONS: Wm. Dawson & Sons, Ltd., Macklin St., London, W. C. 2 Yearly Subscription: United States and possessions, $2.50 (two years, $4>; Canada and foreign countries, $3; single copies, 30 cents. Changes of address should be submitted two weeks in advance of publication date to insure receipt of current7 i=sup. EntPred a? second-class matter February 8, 1932, at the Post Office at New Yoj*', N. Y., under the act of March 3, 1879. Entire contents copyrighted 1947 by International Projectionist Publishing Co., Inc. International Projf.ctionist is not responsible for personal opinions appearing in signed articles in its columns. 430 MONTHLY CHAT ANYBODY desiring to exhibit motion pictures for which an admission is charged in a public gathering place in the State of Iowa need consult nobody but may proceed to lease any old barn (literally) run-in a makeshift power line, install any type of outmoded and worn projection equipment, add as many seats as are desired in any pattern, and begin operations. Neither the close proximity of bales of hay to projection equipment utilizing nitrocellulose film nor the absence of even minimum lighting and exit adjuncts would prevent the opening of tich a "theatre," much less induce a visit of inspection by any State or local authority. Of course, if one's taste runs to innkeeping, one may use any hovel as a "hotel" on the same basis of official disinterest. Now incubating in the Iowa Legislature is a bill, sponsored by the State Association of the I. A., which aims to correct a few of these more flagrant regulatory shortcomings. This bill has not the faintest "Union" tint in that it does not mention manpower or working conditions. It provides for those elementary safety precautions which for many years have been commonplace in almost all other states: the pre-opening inspection of building and equipment, adequate ventilation, sufficient exits, proper interior lighting, restriction on standees in the aisles and at the rear of the auditorium (just imagine!) no exposed wiring, workable projectors, safeguards anent the handling and storing of film, fire-resistive doors in the projection room — all those things which stem from a decent regard for the safety of the theatregoing public. Word from Iowa is that the theatre bill, and a companion piece relating to hotels, are slated for defeat. After extensive public hearings and a bit of investigation? Like hell. Simply on the say-so of theatre owners ("It will put us out of business") and reflecting the attitude of a predominantly farmer Legislature with its senses dulled to the sound of any words but "pork" and "corn." The Legislature will expertly apply the ether to the bills by the simple expedient of ignoring them. This from the lawmakers of a State which last December was the scene, in Dubuque, of a frightful hotel fire. Not to mention that Iowa has one of the worst theatre-fire records in the United States. One wonders if the exhibitor-farmer battlecry of "profits" will indemnify the victims of the next theatre fire; and did the same battlecry serve to restore life to the dead or salve the horrible burns of the injured in the Dubuque hotel fire? Why talk about theatres and hotels which accommodate many hundreds, even thousands, of persons at one time? For years past every restaurant, irrespective of size, in "money-mad" New York City (Continued on page 36) INTERNATIONAL PROJECTIONIST • March 1947