Exhibitors Herald and Moving Picture World (Apr-Jun 1930)

le 7, 1930 Exhibitors Herald-World 47 es to longer life and efficiency for lamp. he film travels over a curved aperj block in the sound film unit, there lg no tension pads or springs to pick emulsion, dirt or cause similar lbles. Ball bearing guide rollers con|t the film past the sound slit, i the forward compartment is housed photoelectric cell, and included here t device which eliminates what are [:n called “surface noises.” [ounted above the sound film unit is 1 projector mechanism. This median employs the horizontal-cylindrical tier mounted between the film and phouse. It eliminates 62 Vz per cent he heat from the film. It also profs air currents to cool the aperture gate and draw free dust and dirt In the film (heat and dust on the , of course, are enemies to good nd-on-film reproduction). The mech:m and sound-on-film unit are adiable to each other and are driven by arrangement which transmits power 1 ct from the motor, driving the ihanism, sound-on-film unit and turnte in unison. II electrical wiring for the sound des on the projector is concealed within projector units. Outlets to the ambers terminate in a junction box at 1 front of the projector base. Motor i lamp lines are in a fused terminal k within the base. A door provides [y access to the terminal block for inspection or renewal of fuses. What a far cry all this is from those days of really not-so-long-ago ! Yet long ago as time may be measured by change. Then, a projector which at first could only clumsily “throw on the screen” a relatively few feet of clumsy action. Today, a projector which smoothly translates every glance and subtle gesture, every shout and whisper of the world’s finest actors. This today. And tomorrow? Whatever it may bring in new demands in projection, the achievements of the past allow projection engineers to contemplate them with confidence. EJEYi/ln the Xi/arld of Sound Conducted by G. J. Reid ANEW photoelectric cell is the Arcturus “Photolytic” cell made by the Arcturus Radio Tube Company of Newark, N. J., which company stresses several points of special application to use in motion picture reproduction. It contends that in this cell the absence of ionization results in elimination of “rush” or background noises ; that the design permits the use of a transformer coupling to the first stage of the amplifier, which can be removed from the projector, thus eliminating the possibility of gear noises being picked up by the first stage and also eliminating the pick up of noises from stray currents ; that there is no continued noise from the speakers upon the breaking of the film, nor any damage therefrom to the cell from the sudden increase in light. New Speaker Series • The Oxford Radio Corporation of Chicago, has developed a series of speakers known as the “Auditorium line,” which have 12y2-inch diaphragms. That illustrated, designed to meet the demand for greater volume, is the Jumbo. This speaker measures 15V2 inches high overall and weighs, according to model, from 45 to 67 pounds. SEAT COMFORT is your BOX OFFICE ATTRACTION This is a chair renewed with a cushion seat and has one of our Velour upholstered Panels attached to the back. You’ve got the iron work and it represents the big part of your seat investment. Equip it with Cushions and Panel the backs. WHEN people find that you have replaced your hard wood or squab seats with our soft, springy, deep cushions, you will do a better business. They appreciate a cushion and here is your chance to win that appreciation from people who sit for two hours or more in your theatre, and it will attract others to become regular patrons. WHY throw away hundreds of dollars in the re-covering and re-upholstering of old hard squab seats when you can buy a new, modern, spring cushion seat to replace it for about the same amount. We can tailor these Spring Seats in any color of imitation leather to fit any make or size of theatre chair. The chair doctors’ final verdict for hard squab and wood seats is that the public have suffered long enough and they must be replaced with comfortable spring cushion seats. IT will surprise you to learn how reasonable this can be accomplished and without any inconvenience. Write us today giving complete information as to the quantity and style of seats now in use. Illinois Theatre Seat Exchange 1029 South Wabash Ave. Chicago, Illinois