The Moving picture world (October 1922)

514 MOVING PICTURE WORLD October 7, 1922 TWO VIEWS OF THE MILLER'S MECHANICAL EQUIPMENT At left—The battery of three Baird projector*; at right—The giant iwitchboard* and control systems SPECIAL ROLL TICKETS T«ar own fpeoUl Ticket, uur eolar*. uetmtalj num- lared: 0*07 r«ll vTuruitaed. Gmvm Tlflketi tm Prtsp DmlA^: I6.««. 16.00 Prompt fthlpmeota. Cash frith the order. G«t the nmples. Send dlafraffl tm Beearred ' Beat Coupon Tlekete, serial ar dated. All tloketa must confam ta Oorem- meDt regulation and bear eatabUafaed I of admlaaloD and tax p&ld. SPECIAL TICKET PRICES Five Thousand $3M Ten Thousand 5.M Fifteen Thousand (J9 Twenty-five Thousand f.M Fifty Thousand 12^ One Hundred Thousand U,M National Ticket Co. shamoina, Pa. MAILING LISTS MOVING PICTURE AND LEGITIMATE THEATRES Z216S Moving Picture by States p«r M.. $5.M 1219 Film Exchanges, for List IM IM Manufacturers and Studios SJ# 419 Machine and Supply Dealors AM 3674 Legitimate Theatres U. S. & Can. 2SM 810 Vaudeville Theatres 7.S* A. F. WILLIAMS 16« W. ADAMS ST. CHICAGO MACHINES THEATRE EQUIPMENT AND 8UFPLIKS WRITS P0« C ATALOG ESKER BROS. OFTTCAL CO. ST. LOUIS, MO. TITLES FOR ALL PURPOSES—ANY LANGUAGE II Vssn SpMlsllzIng Is This Product AuurM Y«s vf tbs BEST HttinU PriNt Qiritk PREMIER TITLE COMPANY S5(-35t EAST 33D STREET CHICAGO Wichita, will be the Miller Theatre. This claim is based on the installation of two systems, either of which is capable of providing proper ventilation. In the hottest weather of summer, the tem- perature can be lowered to almost any desired degree by the Mushroom cooled air system and Monsoon overhead system. If necessary, the air in the auditorium can be changed every two minutes by a combination of the two. Ready for Summer or Winter The Mushroom system provides for the washing of air that comes into the building and either cools or heats it, as desired. A» the air enters the building, it first passes through a radiator room, used only in winter to temper the air. Then it is sent through a solid wall of water where all dirt is washed out. Then through the heating and cooling rooms, it goes to the trunk line ducts of the building. These ducts run the whole length of the theatre under the main and balcony floors. The air is then sent into the theatre through hundreds of registers placed under the seats. It is necessary that a special room be pro- vided in the basement for this plant. There, in addition to the usual boilers, are motors that run the fans and pumps of the system. The Monsoon overhead ventilating system will be utilized in hot weather. Five big fans in the roof of the building remove the air. Three of the fans are nine feet in diameter and the other four are twelve feet in diameter. Another fan back stage removes the air from that portion of the building. The office and store portion of the building is heated with a separate system, not con- nected with that of the theatre proper. Fine Projection Room Located in the rear of the topmost scats of the balcony, and suspended from the roof with its floor on a level with the ceiling of the theatre, are the projection quarters, consisting of three large, well ventilated rooms. At the rear of the balcony, one ascends a short flight of stairs and passes through a corridor which leads into the rewinding room, which has a floor space measuring six by ten feet. Next to the rewinding room is the projec- tion room proper, with a floor space of ten and one-quarter by twenty-four feet and with a nine-foot ceiling. The line-up consists of three Baird projectors, finished in battleship grey with nickel trimmings, one special com- bination stereopticon and effect machine and two spot-flood lamps. Each of the projectors is equipped with Peer- less automatic arc controls. To the right of each projector, set flush with the front wall of the projection room, is a control panel, con- taining volt meter, atiuneter and rheostat con- trol switch. There is also a push button switch on each panel board that is used to signal the stage electrician. Set flush with the wall on the right side of the projection room is the switchboard which controls all the arc lamp circuits in the projec- tion room. There is also a volt and ammeter on this board which registers the combined load of all the machines. The current comes into this switchboard through two 210,000 circular mill cables from a 15 KW General Electric constant voltage, multiple type motor generator set. This generator is normally driven by a 220 volt, 3 phase, A. C. motor of 25 horse power, but there is also a multiple cylinder gasoline motor direct connected to same, which can be started immediately should the city electric service be cut off accidentally, thereby enabling the projectionist to continue the pictures Vkrith- out any delay. There is a large enclosed motor-driven re- wind and film storage cabinet in the projec- tion room. The rewind being equipped with an automatic cutoff switch which stops the motor when the film is entirely rewound. The lighting system of the projection room consists of three indirect fixtures for general illumination of the room and an individual drof light at each machine. Well Ventilated There are three large ventilators in the pro- jection room ceiling, to which are piped the lamphouses of each projector. These carry oflf all heat and gases from the arc lamps. There are two large windows in the projec- tion room and one in each of two other rooms comprising the projection suite. Also a door leading to a private fire escape which leads to the main balcony fire escape. From the projection room, we step into the electrical room, with a floor space of six by ten feet, which contains the rheostats for each of the machines in the projection room. The current comes into the projection room at seventy volts and the rheostats are used to cut this voltage down to the arc voltage, which ia thirty-five. Absolute Fire Protection Two screens are used at the Miller. One being located down at the front of the stage for use when the stage is being set for enter- tainers and the main screen at the rear of the stage. The distance from the front screen to the projector is one hundred and twenty feet and the size of the picture is thirteen by seven- teen feet, while the distance to the main screen is one hundred thirty-five feet. All observation and projection ports are pro- tected by an automatic fire shutter system.