Ohio, and Huntington, W. Va., district offices of the Engineer Corpe. The Ohio River Pollution Survey is not a research study. Its purpose *s to prepare a comprehensive plan and recommenda tions, based on the practical application of known principles of stream sanitation, for the abatement of existing pollution and control of future pollution. This will be the first extensive prepara tion of general plans and specifications for stream pollution control on a large water shed—where nearly one seventh of the population of the United States resides and works. The final report will indicate pollution loadings from sewage and indus trial wastes on each subdrainage basin, specify needed remedial works and the cost thereof, and show how major water uses can best be correlated to serve all persons living in the Ohio drainage basin. 0^0
.
American Coordinating Committee on Corrosion ' T ' H E second annual meeting of the A American Coordinating Committee on Corrosion was held on June 27, at Haddon-Hall Hotel, Atlantic City, N. J. F. N. Speller, of Pittsburgh, consultant on corrosion, was formally named chairman for the coming year, R. M. Burns, Bell Telephone laboratories, vice chairman, and G. H. Young, Mellon Institute of Industrial Research, secretary-treasurer. Committee headquarters are located at 4400 Fifth Ave., Pittsburgh, Penna. The committee was organized two years ago to coordinate research activities in this important field, and is patterned after similar organizations in England, Holland, Belgium, and other countries abroad. Cooperation has been promised by all the major companies and independent labora tories which are actively engaged in corro sion investigations. The committee is at present composed of official delegates from the AMERICAN
Gas Conditioning for Paint and Varnish Plant C. H. S. Tupholme 65 Kinnerton St., Knightbride, London, S. W. 1, England THE use of chemical atmospheres is spreading, and one of the largest British planta for the manufacture of paint and varnish has recently instahVd equipment which is giving excellent results. In this plant the inert gas produced is a complete substitute for carbon dioxide at a small fraction of the cost. The mixing and agitation of synthetic var nishes are accomplished with increased ef ficiency and superior color control; the gas supplied to varnish kettles is inert; the gas is applied to storage tanks with prevention of oxidation and skinning; the inert gas is a protection against fire hazards; and the operating costs, includ ing maintenance, depreciation, and nil other items, are extremely low. In Britain liquid or frozen carbon dioxide is 20s. to 25s. per 1000 cubic feet against 6d. per 1000 cubic feet for the new gas which is made from standard city gas. The base gas is fed into the system and controlled by an electrically operated proportioner which maintains the correct air-gas ratio. The gas is then burned in a refractory-lined chamber and passes from there for primary and secondary dehydra tion. Primary dehydration is of the ordinary surface condenser type, and the secondary and final dehydration is done by the regenerative silica gel system. Finally, remaining traces of sulfur are re moved by a desulfurizing unit. From the desulfuriser the gas is passed to a compressor and is then ready for storage, resin kettles, or other ο Deration v.
CHEMICAL SOCIETY, American Electro-
platers Society, American Foundryman's Association, American Gas Association, American Institute of Chemical Engineers, American Institute of Electrical Engineers, American Institute of Mining and Metal lurgical Engineers, American Society of Heating and Ventilating Engineers, Ameri can Society of Mechanical Engineers, American Society of Refrigerating Engi neers, American Society for Metals, Ameri can Society for Testing Materials, Ameri can Water Works Association, Battelle Memorial Institute, Electrochemical So ciety, Mellon Institute of Industrial Re search, National Bureau of Standards, National District Heating Association. Society of Automotive Engineers, and Technical Association of the Pulp and Paper Industry. At the June meeting, the American Welding 8odety, Chemical Foundation, Engineering Foundation, and National Research Council were also elected to membership.
621
The equipment is completely automatic The amount of gas produced is coordinated with the demand for inert gas at the point where it is taken from the line. The compressor is controlled automatically to idle when demand ceases. Governors are installed to maintain pressure on the storage tank at constant value and to operate the compressor so as to achieve this result. A continuous sample of the gas is taken at the point of manufacture and any variation in consumption is recorded on a chart. The gas produced can be regulated to give a wide range of varying composition, and a typical analysis is: nitrogen, 88 |M»r cent; carbon dioxit'e, 10 per cent; carbon monoxide, 1.9 per cent ; and water vapor, 0.1 per cent, with traces of nitro gen oxides and no oxygen or sulfur. The silica gel plant keeps the water vapor down to 0.1 per cent, and the temperature of cooling water on primary condensers, which varies considerably during sum mer and winter, has no appreciable effect. A plant to supply approximately 1250 cubic feet of conditioned gas per hour at 35 pounds' pressure is shown in the illus tration. The operating costs vary with conditions, but in the case mentioned the requirements are 1.5 horsepower for the gas and air mixer motor; 0.75 horse power for the fan; 4 horsepower for the compressor; 300 to 400 gallons of cooling water per hour for the condensers; and about 250 cubic feet of city gas per hour.
622
NEWS
EDITION
Vol. 18. No. 14 MASSACHUSETTS TECHNOLOGY
OTHER MILITARY PERSONNEL
FLYING PERSONNEL
INSTITUTE
William Montgomery Hearon Henry G. Ingersoll NORTHWESTERN UNIVERSITY
John A. S war tout OHIO STATE UNIVERSITY
John H. MiUer Emil G. Wiest PENNSYLVANIA STATE COLLEGE
Warren S. Forster Allen S. Russell
AIRCRAFT. ACCESSORlES INDUSTRY
PRINCETON UNIVERSITY
Walter R. F. Guyer Harrison H. Yo»mg, Jr. PURDUE UNIVERSITY
AUXILIARY INDUSTRY
David Read Burtsfield Harvey D . Wilmeth RENSSELAER POLYTECHNIC INSTITUTE
Ralph Ernst Albright Robert C. Snyder SYRACUSE UNIVERSITY
Frank A. Hands Harry Sykee UNIVERSITY OF CALIFORNIA
Wayne K. Wilmarth UNIVERSITY OF CHICAGO
Nicholas J. Letang UNIVERSITY OF ILLINOIS
Williaru John Shannon Lynwood N. Whitehall
Airplane Personnel T ^ H I S chart illustrates the personnel re* quired to build, maintain, and fly a wartime air force with permanent basic strength of 26,000 airplanes—13,000 combat planes and 13,000 noncombat craft of all-metal construction, having 10,000 pounds' average gross weight. Those unfamiliar with the extent of such a program are reminded that yearly wartime replacements would require a t least 117,000 planes and 221,000 engine units to maintain such basic strength. The chart involves only man power— part used in the aircraft and accessories industry for research, production of fuselages, engines, propellers, and instruments, the remainder employed in auxiliary industries for production of fuel, lubricants, and uniforms with their transport and distribution. I t does not stress materials beyond estimated fuel requirements. Details on construction and operation requirements would emphasise the great extent t o which products of chemical and related industries are involved in structural materials. These include light metals and alloys, plastics, and many special materials required for numerous parte which make and maintain modern aircraft. From such charts ono gains a clearer understanding of why war forces enormous costs upon nations. This one appeared originally in the April 5, 1940, issue of Thê Aéroplane (London) and was reprinted in July b y Mechanical Bniftneerinc. W e are indebted t o the latter for the privilege of reproduction here.
Chemists' Club Awards Junior Memberships A s THE plan worked out so well last year, The Chemists' Club, 52 East l i s t St., New York, X. Y., has again awarded one-yeai junior memberships t young men who received degrees in chemical engineering or in pure chemistry in June, 1940. These awards were based on scholarship and were open to candidates from 52 colleges and universities throughout the country. The recipients are : BROWN UNIVERSITY
Laurence Edward Strong Reade Yates Tompson
UNIVERSITY OF KANSAS
Eugene A. Ramsldll Leland M. White UNIVERSITY OF LOUISVILLE
John Leroy Ludlow John B. Tepe UNIVERSITY OF MICHIGAN
Richard E. Chaddock UNIVERSITY OF MINNESOTA
Albert Diesslin Blaine C. McKusick UNIVERSITY OF MISSOURI
Chester L. French UNIVERSITY OF NEBRASKA
George B. Arnold Chris P. Keim
CARNEGIE INSTITUTE OF TECHNOLOGY
Cecil Hamilton Chilton Michael Perch
UNIVERSITY OF NOTRE DAME
Willard F. Ansilotti Joseph Fcndall Froning
CASE SCHOOL OF APPLIED SCIENCE
Alexander Balharrie, Jr. Bernerd N. Schrauf COLUMBIA UNIVERSITY
Wilbur H. Miller J. Perry Morgan CORNELL UNIVERSITY
Joseph Coors Sidney Lee HARVARD UNIVERSITY
Glen W. Kilmer INDIANA UNIVERSITY
Ray C. Grills Frank H. Travis, Jr. IOWA STATE COLLEGE
Morton M. Rayman Meredith M. Stewart JOHNS HOPKINS UNIVERSITY
Jackson P. English LEHIGH UNIVERSITY
Norman L. Morse James F. Ryan, Jr.
UNIVERSITY OF PENNSYLVANIA
John H. Elliott Robert Scott Taylor UNIVERSITY OF PITTSBURGH
Frederick H. M. Nestler UNIVERSITY OF VIRGINIA
Lenard P. Gotsch Frederick Burns Hill, Jr. UNIVERSITY OF WISCONSIN
John M. Erickson Frank Zimar WESTERN RESERVE UNIVERSITY
Roy E. Heath Ernest A. Naragon
or
