Document 6w8ay4aRm71XKR3dZ3bMYRj34

Push-button Muscle The tough little brute of a work-saver when you've got pipe to thread, cut or ream "400" Portable POWER-DRIVE It's light weight! # The last word in easily portable power to turn your pipe for threading, cutting, reaming with your hand tools --quickly pays back its cost in saved time and work. Capacity X " to 2" but scads of power even for geared tools to i2". accsMiD design 3-jaw chuck, 6 Portable Stand pinions, one always handy. Self-cen tering workholder in rear. Sealed-in lubrication--no oil to spill. Famous R0CE&0I& "guta" in it--scores of thousands in use. Try it, buy it--at your Supply House. THE RIDOE TOOL COMPANY ELYRIA, OHIO 3*4 More TECHNICAL BRIffsl,* - * ume a iho Moira load from a..-?*? The grawth 0| eleet,ic | however, been such thsi the ...J peek el one year i. ihe ..me following winter peak. th% In <hc p. 20 year., u,. IncrMKj ln-' electrical an hoi been much than the increase m **eam demond.' Slcm u.n hi. been doublln, ,bom every 15 year, nnd, during thll . period, the electrical uie h. been doubling about every 11 year.. ln eemi1 mon with the retl ol the country, tbi rmnuliclurlng plant hu been goto,' through a period ol rapid mechaolu: tioo. ln the past 30-year period, the operMing pressure of the boilers hni been raised successively from 135 psj to 250 psi to 800 psi., In order lo obtain in creasing amounts of power from the steam output. Tho sloom temperature of the newest, boilers was increased from 750 F to 825 F to obtain a 6%' increase in power. We ore currently studying the possibility of 1400 psi hnd 900 F for the neat addition to ctpteliy! Incidentally, our acceptance of higher pressure and temperature follows, geni. eratly speaking, by 10 years its use by the utilities. We are not in the power business as such and we do not fee] justified in pioneering in metallurgy or radically new boiler and turbine do-., signs. ln adding new capacity, available, space for expansion has been an lapor. torn consideration in design. Surround-* ed on all aides as wo are by a plant manufacturing sensitized products, We are forced to budget the space in order to reserve room for future installations. Consideration of the coat of steam dis tribution, operating labor and duplica tion of auxiliary equipment dictates thst we develop on present sites es long ** possible. This lack of space has caused us to build high power houses, and to place our fan and piping systems abort the boiler. Lack of space has been of a somewhat- deterrent to utilizing some of the out door end semi-outdoor features which many of the newer plants hare. In thu regard, it has been our feeling that high speed equipment in elevsicd location* should bo housed for ease of operation and maintenance. On the ground, thu ' equipment would be satisfactory in the open. To aave space as well as to reduce unit Installation and operating costs, we are currently studying ths possibility of larger-sized units. Them are a considerable amount of repUc*menls to be made over the next 10 to 1* years. With new food and with cor'd** m meet the man who P/dkWAEA of MAULEY COOLING TOWERS He la Donald R. Baker, who directs Morloy cooling tower performance-research and testing. Mr. Baker ond his staff of associate engineers hove changed the standard of measurement for cooling tower rating from n yardstick to a micrometer. Their achieve ments offer a very tangible benefit to every Marlcy customer: the assuronce that all Morloy eooling towers will meet or surpass specified design performance. Positive predetermination of cooling tower performance is the result of more than a decade of effort by this Mnrley research group. The project has required the cumulative knowledge of many specialised engineering skill* possessed by members of this department. Their approach has been both scientific ond practical Every theory developed has been proven in the Mnrley cooling tower test plant--in dustry's first and always the most complete installation of Us type. Services of independent research and lest organizations hove been used liberally to further prove the practicality of every effort. The published results of Mnrley test research are available through Mnrley engineering sales offices in 50 cities. Just ask for Technical Bulletin R-52-P10. I Other Mrtfty mianfi pra|tiu WOOD OTTIRIORA. TION AND MISHVAtlON. CORROSION O' MSIAt. I SROTtCTlVt COATIMOI, MITAILUROV, LUBRICATION ANO OTHIR OPtRAIIONAL PROtUMS. MA1IRIAU SMCItOM. I IlNralvr* r WtnMilM available on all w*l<u- I SOWER DECEMBER <'*. '<!pW(R - DECEMBER 1953