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1954-55 Theatre Catalog, 12th Edition, Page 377 (339)

1954-55 Theatre Catalog, 12th Edition
1954-55 Theatre Catalog
1954-55 Theatre Catalog, 12th Edition, Page 377
Page 377

1954-55 Theatre Catalog, 12th Edition, Page 377

Keep Theatre Air Clean

Electronic Cleaning of Air in a Theatre, Can Mean Increased Patronage and Reduced Maintenance Costs

It. is fairly safe to say that at the present time the average person is more conscious of air conditioning and air cleaning than at any other time in history. With more and more private homes and apartments being equipped with home air conditioning units Mr. and Mrs. Average Citizen is learning to enjoy and expect an atmosphere that is free of annoying heat or humidity, and also free of dirt and foreign particles.

One of the ways of providing a theas tre with clean, pure air, with dust, dirt, smoke, lint, pollen and other irritants removed, is the electronic air cleaner manufactured by Trion, Inc.

The air cleaner can be easily installed into the return air duct of a warm air heating, air conditioning, or ventilating system. The principle involved is that of electrostatic precipitation. All particles, even of sub-microscopic size, are electrically charged as they pass through the high voltage ionizing screen. These particles are then attracted and adhere to the collecting plates as a piece of metal is attracted by a magnet. Periodically, depending on the dirt content of the air in. the particular locality, the dirt is washed from the plates by the integrally constructed water wash system, and is fiushed into the sewer. With the removal of foreign particles only pure, clean air is left to be circus lated through the building.

Equuipment There are three major component parts to the electronic air cleaner; the ioniz



ing-collecting cell, the power pack and the water wash spray system.

i. The Ionizing-Collecting Cell consists of fine tungsten wires which are suspended in front of and between a series of parallel aluminum plates on which the foreign particles from the air are collected.

2. A Power Packy with transformers and rectifier tubes for supplying high Voltage direct current to the IonizingCollecting Cell.

3. A Water Wash Spray System for automatically washing the dirt from the aluminum collecting plates.

The framework and cabinets are sturdily constructed of corrosion-resistant heavy sheet steel, The cell-construction is aluminum. Since there are no moving parts, there is nothing to wear out. The power pack, which supplies the necessary current to the unit, contains two rectifier tubes which have the life span of any ordinary radio or television tube. The power pack on the Trion filter is so designed that it can be easily replaced with a factory rebuilt unit if necessary.

The detailed type and size of an electrostatic filter for any given application depends entirely upon the efiiciency requirements. For ordinary ventilating purposes the removal of 90 per cent of all air-borne dust is con LARGE GRILLES TO THE RIGHT OF THE stage of the Gateway. in Fort Lauderdale, Florida. carry the stale and dirty air to the Trion unit where it is purified and returned mountain lresh through circular ceiling diffusers in the theatre.

4 A? re

sidered practical. When installed ii' accordance with specifications, and not in excess of nominal rating, the electronic air cleaner is guaranteed to remove more than 90 per cent of particulate matter from air streams e as determined by the National Bureau of Standards Dust-Spot Test under normal atmospheric com ditions.

Operation and Maintenance

Trion equipment of a size capable of cleaning the air of a theatre may be floor mounted or suspended, depending

BRIEF: The. operation of a theatre today" requires more than just getting good product . . . and presenting it on a good screen with good projection and sound equipment . . . The public has come to expect this from their theatres . . . They have also come to expect extra services and benefits that make going to the movies a pleasing and pleasant experience . . . One of the things which comes under this heading is properly cooled and cleaned air.

This article discusses a method of electronically ridding the air of (HIV and pollen . . . and smoke particles in a simple inexpensire manner . . . This system will also cut down cleaning ("SIS

. and wall fabrics and draperies will last much longer . . . There is also a section devoted to an actual theatre installation of this air cleaning method

. and the interesting results.
1954-55 Theatre Catalog, 12th Edition, Page 377