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MAKE THE DIFFERENCE Kewanee Boilers have led their field for more than 85 years because Architects, Engineers, Contractors and owners know they get more from them . . . and that is true because Kewanee puts more into them. Chock the measurements and specification! shown fn every Kewanee catalog. You'll find more of oil the features which moke a boiler efficient and dependable . . . lorge, high fireboxes; generous hooting surfocesrunfmpeded water ways; unobstructed steam release areas; plenty of space for reserve steam. That's why one finds Kewanee toilers "on the fob" providing heat or power or process steom in America's finest buildings and Industrial plants. KEWANEE.ROSS CORPORATION ut More TECHNICAL I "1 LikcwlM, ,,,, , 24(u, plan to maintain from gw,1 ; pbaio lo neutral. Thl.- olU|ie lor mote, 433 to 430h j, ; * <W mannilude |JS ? Ihe ilondpoinl ot bod, penr and the cuuont,, ,.' . voltage, which .or. Iron, aTM S A/EE Paper No. 5.J.7; Elaclrlcol Innovntlont I. ,, Bolldlno. fi, tool,Ale*, "3 Co o/ erica, PilnboroA. ( Flvo (eatureo In the elecuij lotion of the 30-nonr Altai in.PiUeburgh ere oew |q ofluitj construction. These *re* minor exception, axdiuivi q mlnum conductors, (2) exehij rigid aluminum conduit, (J) a* Wreoctlon riser buses, (4) qi? alJ.aluminum lighting fixitim* os in Integral end efficient j ceiling panel healing and tern, (3) design of a lighting^ that can be readily modified % changing office arrangements ^ vldo a lighting level of 55 to S candles. To provide these f. requires imagineering in order d come the natural human resists^, the use of new materfsbend neWoi ods, and to moke possible todsE creaUon of the building of tong Electrical load ol tbs boHdinf? iisu of about 3600 hp motor efld{[ kva lighting load. Power ti n from four 11,000-kv lines from tl not'* Island Station ol the Doqo Light Co aerving downtown I Each line connects to a 1,00 phase subway-type network tnMwjj the 208-v secondary of which eat through a 3000-amp network prej and 4,000-amp circuit breaker tt a portion of (he building, and si common bus. All floors abort tln are {towered from a specially d*j low-reaetance aluminum bus. Its three conductors are sector * has 8546 sq In. crospsectloo o minimum spaced % in. betweeni tor. AtEE eon/erencc 9*9**- ^ obtained from the author. Okntkmt 1# w4*hg m" M 9 . A million dolisr "House ol is being built by The Trane Co. U WUoonsin, manofseturers ol Ing, besting and venlfl*l,Bl ^ The new research end will Include facilities for dupNf*1^ peralure, humidity, pressurs n", ' menl from condition* anywhere ofl equatorial mfnes to srctlo flilkS POWEB Masonellan No. U Reducing Valve tor Steam Pilot operation assure] Iasi response, accurate control. Superlinished parts eliminate sticking snd corrosion. Stainless steel Integral pilot, hardened main valve, chroma-nickel steel seat ring provide long life. Maintenance, with valve in Ihe line, consists ol little more than keeping parts clean. Available in brorue, iron or steel. Masonellan No. 71 Reducing Valve for Air Dependable, high capacity, compact and rugged reducing valve provides stable control. Requires little maintenance during long life. Forged brass bodies -- sizes Vi*, Ft', tt*. Masonellan No. 227 Reducing Valve for Water Holds water pressure where you want il Stabilizes control without culling down flow. Has tight shutoff. Requires minimum attention. Bronze bodies -- sizes V4'-2"- :olution TO A SHAKY RESSURE PROBLEM 50NEILAN REGULATORS to mfliMc through your reliibfe Industrial Dixtrtouter. Or write Mrnn-MtDrt Ragulxter Co*tit* *448a tUnt, fiaitoe 24, MlllMtnuttt *AT 1033 *U4*i