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190 Air System Equipment nM Tns>< s*rf# The G & O Manufacturing Company 140 Winchester Avenue New Haven 8, Connecticut INDIVIDUAL AND STRIP FIN TUBING We manufacture a complete line of high efficiency heat transfer surfaces in a wide range of standard sizes with individual square, round and oblong fins.

241 April Showers Sprayed Roof Cooling Systems Advantages of April Showers System Reduces roof temperatures as much as 50 Usually lowers indoor temperatures 10 to 15 Extends roof life 2 to 3 times Reduces air conditioning needs 15% to 25% Costs very little to install and operate Acts as an effective lightning arrestor Reduces fire hazard to the roof Can be used to wash away nuclear fallout COMPARATIVE EFFECTIVENESS OF ROOF COOLING SYSTEMS- Figures derived from tests on large plant near Boston, Mass, in September April Showers alone can effectively reduce indoor temperatures.

254 .Heating Synem, AMERICAN AIR FILTER COMPANY, INC.

Refrigerant.Tablesand.

THE WILDEST DREAMS HAVE A WAY OF COMING TRUE.

34 ASHRAE Guide And Data Book Automatic Cooling Tower Bleed-off Control frith DEADY SOLID-TROL TRANSISTORIZED WITH PRINTED CIRCUITS Continuously Analyzes Cooling Water Concentrations Automatically Regulates Bleedoff According to Analysis Priced to Be Practical for Any Size Cooling Unit SOLID-TROL@gives you these advantages: 1.

204 ASHRAE Guide And Data Book IIMI=RyAVI-UX GAS INFRA-RED COMFORT HEATERS The C.

MULTI8ESTOS : HA H OB.O O K-; .F OR B R A K E SERVICE MULTIBESTOS HANDBOOK FOR BRAKE SERVICE Basic Fundamenfals of Brake Service {Continued) come* with each TAILORED Set.

STANDARD OIL COMPANY (Incorporated in New Jersey) 30 Rockefeller Plaza New York, N.

Preliminary Dust Survey for Aole3 too Textile Institute June, 19**7 it, repic/j.

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. ram frch page 258.

TROUBLE SHOOTING CHART (Hydraulic Brakes) CONDITION CAUSE REMEDY Lining Wear.

National Safety Council | Mrs.