Document O1Z6KbmyyV51x3bKwmnV2b94j

Sheets (Copper-Steel) Camegie-Illinois Steel Corporation General Offices: Pittsburgh and Chicago District Offices Birmingham Boston Chicago Cincinnati Cleveland Denver Detroit Houston Indianapolis Milwaukee New York Philadelphia Pittsburgh St. Louis St. Paul Washington COLUMBIA STEEL COMPANY, San Francisco, Pacific Coast Distributors UNITED STATES STEEL PRODUCTS COMPANY, New York, Export Distributors U S S CORROSION-RESISTING, COPPER-STEEL SHEETS The practical, low cost way to fight rust in ducts and air conditioning equipment is to use copper steel. Numerous tests and installations prove that a small amount of copper added to steel more than doubles its resistance to atmospheric corrosion. The cost of this double protection is so small in comparison to the value of the increased life that U* S* S Copper-Steel should be definitely considered for all your jobs. Even when the base metal is galvanized or painted, copper-steel is worthwhile because surface coatings may become damaged. When copper-steel is used, the exposed metal still has excellent resistance to corrosion. v U S S Copper-Steel Black and Galvanized Sheets are saving thousands of dollars yearly in the ceaseless fight against rust. They give maximum protection per dollar of cost and are being used in ever-increasing volume by heating, ventilating and aircon ditioning engineers, architects and contractors. Gauges of Steel Sheets Used for Duct Construction HEATING AND VENTILATING Round Ducts Rectangular Ducts Dt&m., Inches 6 to 19 20 to 29 30 to 39 40 to 49 50 and above Gauge 26 24 22 20 18 Width. Inches 4 to 18 19 to 30 31 to 60 61 to 118 118 and above Gauge 26 24 22 20 18 | Other Exhaust Systems Diam., Inches Up to 8 9 to 14 15 to 20 21 to 30 Gauge 24 22 20 18 In the above table rectangular ducts are to have cross breaks for the gauges shown, otherwise two gauges heavier should be used. One inch standing seams should be used on widths up to 48 in., in. seams on widths over 48 irL, and for widths over 60 in., the seams should in addition be provided with reinforcing bars or angles. (This material is reprinted by permission from "Fan Engineering," Buffalo Forge Co.). U'S'S Black and Galvanized Sheets Two principal types of black sheets are used by air conditioning engineers. They are U*S*S Hot Rolled and U*S#S Hot Rolled Annealed. These steel sheets may be had in a number of different finishes, suitable for all sorts of forming operations and for painting. Remember that every kind of U S S Black Sheet is available in Copper-Steel Black Sheets for blowers, refrigerator cabinets, dust collectors, tube collectors, fans, ducts and a thousand other specialty products. Five types of galvanized sheets made by U*S*S Subsidiaries are used extensively in heating and ventilating work. The best types for your particular products or installa tions may be ascertained by consulting U S S engineers. Write the nearest branch office. 1100 International Heating & Ventilating Exposition THE AIR CONDITIONING EXPOSITION Permanent Address--Grand Central Palace, New York, N. Y. EXPOSITIONS HELD The first in Philadelphia, 1930. The second in Cleveland, 1932. The third in New York, 1934. The fourth in Chicago, 1936. The fifth in New York, 1938. Subsequent Expositions will be held on alternate, even numbered years. These are held coincident with the Annual Meeting of the American Society of Heating and Ventilating Engineers and are directed by the International Exposition Company, under the auspices of the A.S.H.V.E. EXHIBITORS Comprise leading firms in each phase of the industry: number has varied from 160 to 327 exhibitors. EXHIBITS These range from and comprise all the types of articles discussed or advertised in this copy of The A.S.H.V.E. Guide. 1. The Combustion Group: Furnaces, burners (coal, oil and gas), grates, stokers, boilers, radiators (vari ous types), refractories and auxiliaries. 2. The Oil Burner Group. 3. The Hydraulic Group: Water feeders, water heaters, pumps, traps, valves, piping, fittings, expan sion joints, pipe hangers, etc. 4. The Steam Heating Group: Vapor heating and steam specialties. 5. The Hot Water Heating Group. . 6. The Air Group: Warm Air furnaces and stoves, regis ters and grilles, cooling towers, air filters, motors, fans, blowers, condi tioning equipment, ventilators (room and industrial types), unit heaters, etc. 7. The Air Conditioning Group: - Equipment which circulates and filters the air, in summer dehumidifies and cools; in winter heats and humidifies, and does all these in proper season for complete, all year round air condi tioning. 8. The Control Group: Instruments of precision for indicating, controlling or recording temperature, pressure, volume, time, flow, draft or any other function to be measured. 9. The Refrigerating Group: Compressors, condensers, cooling ap paratus, contingent apparatus and refrigerants. 10. The Central Heating Group: Apparatus and materials especially designed or adapted to the uses of central heating and central heating station supplies. 11. The Insulating Group: Structural insulators (refractory and cellulose materials), asbestos, mag nesia clays and combinations thereof, pipe and conduit covering, etc., weather-stripping, etc. 12. The Miscellaneous Group: Electric Heaters, boiler and pipe re pair alloys, liquids and compounds, and equipment not specifically includ ed in the above groups, but related thereto. 13. The Machinery and General Equipment Group. 14. Books and Publications. VISITOR ATTENDANCE Comprises a registered attendance in vited to the exposition and includes: (Figures are 1936 analysis) Industries Governmental________ Distributional Channels Contractors, Dealers, Jobbers, Supply Houses. 32 classifications. 7701 Home Owners_______________________ ____ Industrial Users, 49 classifications10,791 Professional and Service Organisations, 23 classifications. 2095 Public Utilities.__ _________ Real Estate Management and Operation, 10 classifications^ 1418 Educational Institutions_______________ ___ Miscellaneous............. 404 474 1459 1935 1460 Total27,743 Occupations Executive (44 titles)12,437 Construction (16 titles and trades)________ Operation (44 titles and trades)______ Technical (64 titles).... .......... Not Classified including Educators, Pub lishers, Home Owners, etc__ ____________ 2606 4316 4477 3907 Totai27.743 The registered attendance at the 1938 Exposition in New York was over 30,000, but the analysis of industries and occupa tions has not been completed at the time this goes to press. Industrial Expositions in America lead the expositions of the world in style, business effectiveness, industrial influence and educational value. This Exposition stands among the leaders in Industrial Expositions in America. It is an edu cational institution which biennially brings together the research developments and improvements in equipment and materials for use in heating, ventilating and air conditioning all types of buildings. 1101