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,210 Air System Equipment WATERLOO REGISTER COMPANY, INC. "Since 1902" P. O. Box 147 Waterloo, Iowa IjriAf WATERLOO FACILITIES TO NEW EXPEDITE ANY AIR DIFFUSION JOB a complete line of air diffusion equipment, a complete capability to handle special projects. Illustrated here are a few standard, job-proved Waterloo grilles and registers. But remember: Sixty years of experience enable Waterloo to produce high quality special equipment with unique speed and precision. The complete Waterloo catalog-containing illustrations and engineering data on all products--is available upon request. 2V SUPPLY GRILLE: Two sets of ex truded aluminum louvers, each individ ually adjustable for jour-way deflection at-degree desired. DT AIR VOLUME EXTRACTOR: Volume controller and extractor adjusts from full open to full closed, to provide even distri bution to entire grille surface. Completely assembled at the factory--ready to install on job. 08 DAMPER: Opposed Blade Volume Controller may be purchased as a separate unit or can be in corporated as integral part of all Waterloo supply and return units. DO DROP COLLAR FRAME: Waterloo Extruded Alumi num Diffusers are emailable in 5 frame styles. In addition, to DD 'and DF illustrated, toe offer DM (bevelled), DE (snap-in), and DL (lay-on). 3H RETURN AIR GRILLE: Fixed fins at 45 degrees or 0 degree deflection, in heavy gauge frame, strengthened with adequately spaced support bars. DF-FLANGE FRAME: 14 different core patterns mil provide 1-2-3-4 or 2-waycorner air flow depending on job re quirements. DOB (Opposed Blade Damper) and DED (Equalising Deflec tor) available for all types. AIRLINE GRILLE: This product of all-extruded aluminum construction features solid *4 in. face bars on Vs in. spacing. Available with or without dampers. Ideal for wall, sill or floor applications. System Equipment >211 WESTERN ENGINEERING & MFG. CO. P.0. Box 66455, Los Angeles 66, California Factory: 4114 Glencoe Avenue, Venice, California Representstires in Principal Clti^, LOW SILHOUETTE FOR MODERN ARCHITECTURE CENTRIFUGAL The Western Centridyne is a loir silhouette high per formance centrifugal roof exhauster engineered to harmonize with the new linear design concept of modern architecture. The new straight-line styling features aerodynamically de signed extruded aluminum discharge vanes. Hie Centridyne features quietness of operation, non-overloading horsepower and a stable pressure curve. Exhaust is horizontally directed rather than downwardly directed as in the case of the conven. tional spun types. Horizontal discharge prevents roof damage or deterioration. Low silhouette is achieved by mounting the motor in the wheel plane. All construction is of aluminum except the rigid, tubular steel, vibration insulated, motorwheel support structure. All wheels are statically and dy namically balanced. Complete range of sizes. Western Engi neering & Mfg. Co. certifies that these products bearing the AMCA Certified Rating Seal have been tested and rated in accordance with AMCA Bulletin 210, Figure 3, and licensed to bear the AMCA Certified Rating Seal. ; Western Continuous Ridge Ventilator Western Thermoflow OTHER TYPES INCLUDE: Syphonairc Matt II Advanced de sign, seamless top plate, certi fied exhaust Meets Corps, of Engineer Guide Specifications. Westers Lotary U4. Patent No. 2,153.07V. High, level ex haust capacity. Lifetime Bear- Western Airout Directional ven tilator move* with airstream. Certified capa cities. Patented bearing suspension. I Western Trantatre Basie Roof ven tilator designed for gravity, power^supply applications. AXIAL The Westernaire Hooded Exhaust Ventilator is a high efficiency exhaust fan engineered into a low, weatherproof, streamlined housing compatible with modern architecture. Unusually high flow efficiency is achieved in an extremely low silhouette through the use of an aerodynamically correct spun deflection ring. Exhaust is comparable to that of the Westemaire Vertical Exhaust Ventilator. Designed for both com mercial and industrial applications, a 360-degree near hori zontal discharge pattern provides maximum efficiency regard less of wind direction or velocity. The Westernaire Vertical Exhaust Ventilator is a highcapacity power unit designed specifically for industrial usage. A high velocity discharge projects fumes, smoke, dust-laden and foul air high above the roof to prevent damage to the roof or re-entry to the -building. When the fan is operating, the butterfly dampers blow open to permit free exhaust of the contaminated air. When the fan is shat off, the dampers im mediately dose. If required, a safety device will open dampers automatically in case of Are to vent smoke and reduce heat. GRAVITY High volume exhaust capacity is obtained with the West ern Continuous Ridge Ventilator without sacrificing archi tectural beauty. Fabricated in any desired length to fit any type of roof, this ventilator is available in throat sizes from 4" to 120". Western Continuous Ridge Ventilators are heavily constructed to withstand any normally encountered wind velocity. The Western Thermoflow unit ventilator is a gravity roof ventilator designed to exhaust tremendous air masses by the convection current principle. Friction loss through the ventila--tor has been practically eliminated by the short, unrestricted travel distance. Engineered for heavy industrial applications, the Western Thermoflow is relatively inconspicuous and may be installed on schools, warehouses and factories. The units are designed to mount on a curb and rise only 21%" above the curb. Each standard unit is 7' 6" wide and 10' long and con sists, of three operating cells. Units may be installed singly, multiples side by side, multiples end to end, or multiples of double units. Other sizes are also available. (See Sweet't Plant Engineering Catalog File.) \' k- i'll \\\ Ii ! ! j