The Iron Age 1932-10-20: Vol 130 Iss 16

..THE IRON AGE.. a a —EEE — ——<——$_$$—$—$ ESTABLISHED oN Industry's Excess Capacity Problem Dissected By ROSS H. McMASTER ’ ‘ MA FS ( SING on the stee industt 1 irti i rut laKI | tions applicable to industry broadly, Mr. McMaster here into their chief elements the causes and res of the problem of « capacity. His discussion touches on bot urrent and tuture ondl ind comes as a response to the content I im arth le in the f in the issue of Sept. 15 that the rate of increase in the use of 1 tapering tendency In the first place, the author ne eve that ecurring peaks I F H. McMaster duction afford the most reliable measure of the growth of co tion. Also, he holds that the greater permanence é ; construction alters the relation of demand to population per capita consumption is not so de pe nd ibl. in indicator of « as was outlined in the Sept. 15th article. Refinements in design alloys, better engineering practice—these, he adds, will have { ultimate effect a broadening of demand establishing we costs. He urges national ind nternationa cooperation te i! hitherto unknown as the hope for the el nation of profitle ( oncerted attempts should be made, he l ippralise the of the market to which contending elements are entitled. based supported by past performance, cali nd other permissibl erations. The steel industry, he asserts eve lad the ourage t italize profits reinvested and it has never had yurage t the protection it has built up against port rrespect through achieving high quality oa Midd uutting Tools wwii" FoR machining and other cutting operations industry has now available in commercial use a wide range of materials. What they are and where they belong in the industrial scheme is told in the iccompanying survey, which was presented at a recent meeting in Buffalo of the machine shop divi ion of the American Society of Mechanical Engineers. Both fer rous and non-ferrous tools are covered and the importance of hardness, strength and toughness liscussed. Mr. Emmons, the author believes the trend is toward greater number of tools but that no single material will dominate instead each will carve out a niche which it is best adapted to fill The fron “Better Times — ‘Sixth in a series of “Performance Pages” as L selected from actual practice by The Iron Age Editors : Elevator Mechanism Pinion: 0.30 carbon steel forging Auto Transmission Spur Gear chromium-manganese steel Met o Roughing and finishing; | hl a Production time: 4 hours. Previous Method: Production time: 7 hours. Replacement Spur Gear cast tron Method S vn Roug ind finishing; one ple etting ingle thread | Production time: hours. VM! Previous Method: Production time: 7 hours. 610 The fron ive. October 20, 1932 PRODUCTS: Gears and Other Thread Parts OPERATIONS: Hobbing and Finishing PRODUCTION EQUIPMENT: Gould & Eberhardt Manufacturing Hobbers UDGING from some other machining operations accurate hobbing may appear relatively slow, yet recent developments in this field have increased production by as much as 350 per cent in some cases The examples shown here are taken from actual present-day operating | practice and the rate comparison is with good practice immediately preceding the introduction of the new method. This is the sixth of the new IRON AGE ‘Better Times’ series. Succeeding issues will give further practical examples in other fields, to aid plant managers in checking their production with recent obtainable rates Auto Transmission Gear :chrome-nickel molybdenum steel ing prepara ? ishing setting Production time 75 pieces an hour Airplane Propeller Crank a shaft; chrome-nickel steel i Production time: Met ’ | pieces in Production time l hour Previous Method Production time 4 hours Traction Motor Gear 0.50 carbon steel , ,O Ths Production time: 1'4 hours. Previous Method: Production time: > hours. The Iron Age. October 20, 1932 6ll to Repair Dies omic Hydrogen Welding Used ‘ i t Or lt ( we ! ichine ff. 4 i ne l me < tnat < ( il : W ¢ t ectre Holde Are Ac ible Erasing Letters in a Mold Various applicatior n ng p! ce I }” ir ar¢ n I y At the i ol ow { i} on ma ( ] ng ard rubbet Che ink-ir e! hat rm the a, vord it ( eT dina T l wn ene . l irface hu effectin ar f the word from the pi : . ' * ; : na \\ nereattet! é 1a I. «ULE Lae ‘ : , nm a _— mold. If desired a ne word may eto ; be substituted by nking new letters he rhe) eit in he die. The 1 common prac- tice in making a change of this char- icter in a mold is to cut it the let ters and fill in the ace With an in- ert. The welding roce it iS aimed, has resulte na saving in he expense and a great saving in the n making ing‘ 1 the Filling Up Cracks in Dies At the right of the two hard rubb molds and settir directly in fror Concluded on Advertisin ‘age 18 ric TH r Ww ie 'T 3 t aus eh >% y welded by } hyd roce in n > ; ‘ n fl ther . + r 1G. 3—A die in which a crack has been er filled in by atomic hydrogen welding ‘ hed, ed ro? ‘ tT e ares n of fused i A ‘ y a\ ‘ LT cy y r +) r IG. 2 ing machine The Iron Age. October 20. 612 repaired by building lled up, edges by atomic hydrogen weldin —Core used in a permanent mold up y & VO H Low-Temperature LLOW] Liquid Baths for Heat Treating— Low-Temperature Salt Baths NG Salt Bath By W N this, the of article for heat treating PAUL EDDY, |r 31 Motors T fourth in a s on liquid bath the auth r u é 40 / cusses low-temperature salt baths He divides into three ind high salt baths in gene > classes—low, me >dium rai temperature mixtures In subsequent articles he will take up the medium and high temper ture classes the series include those on lead baths i Ser t. |, on of Sept 15 general | Previous articles n THE IRON cyanides in the AGE and on salt bath n that of Sept J u A > J wh sit wh th af . rT A bh ; n w + - ‘ that we T he Iron w ige ‘ October 20. tr exampte } ta It happens mn th ntaining ner ' the mixtfur will meit f any other propor sdually—that is. there ch part of the mixtur advantage, then r r heat treating i that ssible with any tw th th widest ¢c ; > nar ai? , ” fr , 1932 \‘\ oi4 The iy ‘ (ve ob | " R ‘ h , }? vi hie ei and che obtainah r if check pense t hes ‘ vt nd ee er 2O. T9383? ui with many other manufacturers cant. Can vou recommend either a ve taken advantage of the recent better lubricant or a better washing rders by making extensive re processé ur buildings and equipment In 5. S we have kept uppermost in mind rie] ty of having our manufacturins \ t meet the keen com : ; h we feel sure will develop in I ‘ ely t Our self-analysis has cov etal NIU a 501 f our products, the mat ! atl k emul “ J and all of the labor of ! L) read ylub ) f juce the finished ha : NV ev [ ible we have er io - ha + 4¢ gn . ; ‘s f t Havin assure . 4 nm. we th L. E. M. ttent t th product t [ nel W t f betw ai Flame Curtains for Furnaces DeBRULIN wral superi l have difficulty from oxidization ifr Wie. Co Columbus of parts in a small heat-treating fur race Can vou suggest any way to void this? ee a Vi : ’ 1 Lit T l irtall la y ; 1 , i mr. . ee Wy nal mat 1| should we use f naking ntin us Picklin gas turbine blades t perate at a tem rm perature f 800 deg. F. and at a speed which j would develop a entrifugal stre t & j WW er sq. in. at the blade root? This is typical of the many questions which constantly being received and answer ur Question Mark Department. If y have an answer for this question or have juestion of your own which you would lik inswered, please address the Forum Edit Prue Iron A 239 West 39th Street. New W eriai£. led. dra thoroughl drawing, expensive Y ork Drawing Lubricant w steel tubing, which is later He find it is necessary y to wash the tubing after and we find it difficult and to remove the drawing lubri ark to Work Lubrication in Drawing Sheet Steel—Annealing Strip Steel iy tn hr New Canadian Tariffs on Steel Place American Industry at Disadvantage Compared with Old Differential in Favor of Great Britain As Compared With United States nadian Customs Tariff—New Rates Effective Oct. 13, 1932, Compared with Old Differential in Favor of Great Britain Rates—lIron and Steel and Automobile Schedules As Compared With United States A ¢ i t 4 i V\. Schwab Asks Ban on Foreign Steel in New York Bar and Rod Heating Closely Controlled by “Electric Eye” F.C. CHESTON £ . “7 < The fron Age, October 20. 1932 y ee ——— Ad ) ra l re i } ne a ‘ his radio. ling to the manufac i lif f approximately I} a npanying illustrations ‘ temperature con- ! i! ectric eye \\ t ny sible for At left) Equipped with the “electric eye feeding 1d discharge chute, this Berwick electric heater needs 1 from the operator except for loading the hopper 1 given temperature, the heater need not be ad yny change in diameter of stock or length of heat f w! Equipped with electric definite time relay | lectrode heater is controlled by foot treadle and push button Stock up to 2-in. in diameter, | to may be heated for forging and other operations C@perating Timing Devices nin Fig. 1 Pieces Heated Uniformly New Rafter Press-Brake Has Welded Steel Bed and Ram The lron Age. October 20. 1932 619 Failure to Face Fundamental Problems Retards Improvement By DR. LIONEL D. EDIE rT in | not ni I 1 the popu The Problem of Debts and Deficits rrinat ate epot rto , nrof ny Back to Realities I onon i olation er 20. 1932 ——— ....-OFF THE ASSEMBLY LINE..... Plymouth to Make New Low-Priced Six; Steel Releases Increase in Volume a te te p et ' . . \ } innounces < ! the lowe st price ¢ \ | na sler Motors A I (| er, Chevrolet, Pont Willys-Overland buy stes robably will purchase quartet steel require! ( reported t ? t » line ot Xx “iat oie ta ead of on vvy rit i I HH VM PERS ORAL i lat ‘ ] N« y “ } i o ( \ al UF Ur \ x | i i n I a \ ( a ! | ' we ti EN I \ C] R i | QO W Ma ( I ( Vi a { I CH L- ? , hom: es , A é V\ s¢ hw ab NCCECIVES velan here tl will » +} nera fice building A ' i f l iii BATES Melchett Medal | Corrigan, McKinney Steel | foe ROBINSON, vice-president it ( a n De ‘A yy 4 | e 4 | W 1 1 | PI « irtne? ( P} ad al I | , ( Metal Trades Show Employment Gains 622 The fron toe October 20. 193? H. S. BEAL VFHNHE slow f confidenes he | chine users gave a lertone to Ul! int n ting Machine Tool Builders’ A ind \ ited Ma T De el! nela Swami i \ t N 4 0 at nerea jure n r r ’ th Lily n L I I 1 I I I il 1 i al i I é ¢ T f Y é ] l } r 4 \\ r a tn tr New Officers and Directors of the N.M.T.B.A PRESIDENT, H. S. Beal, gen. mgr., Jones G Lamson Machine Co., Springfield, Vt IST VICE-PRESIDENT, E. A. Muller King Machine Tool Co., Cin president cinnati 2ND VICE-PRESIDENT, R. A. Heald treasurer, Heald Machine C Wor cester NEW DIRECTORS |. G. Benedict, president, Landis Machine Co., Waynesboro, Pa.: Charles |. Stillwell vice-president, Warner G& Swasey Co Cleveland: H. H. Pease, president, New Britain-Gridley Machine Co., New Britain Conn Tangible Improvement Seen By Tool Builders and Dealers A. W. ROBERTSON New Officer: W K. STAMETS and Directors of the A.M.T.D RESIDENT WwW ¥ wv Stamet Pits urgh VICE-PRESIDENT. H_ £ t { cr Ty 4 i ECRETARY-TREASURER. H s Q ney Machin C Pir u NEW MEMBERS OF EXEC COMMITTEE ER._M h. Sr... Motch & Merryw Cleveland: F. 6 tt . y ¢ Syracu N }R. V 4 . Chur bh Cc i we Re ecte vr~vyY The Iron Age, October 20, 1932 623 a tn Mr --- OBITUARY ; < ‘ : | ' yeneca Stockholders Ratify Sale tO Bethlehem > © EDITORIAL COMMENT « - lp-Grading Exposition I Attendance Quality pormear es \ Practical 1) dorsement UO} NModernization f > ZOD Automotive Engineers Favor Flexible The /Manutacturing Equipment lron Age Octoln r 20. 193? E. T. Weir Declares For Higher Wages Kernest | W Nat nal Stee { Steel Sheet Production Gained in September \ SUMMARY OF THE WEEK’S BUSINESS Major Industries Contributing Little To Current Steel Business Automobile Makers and Railroads Place a Few Small Orders—Building W ork Lags—Miscellaneous Consumers Supporting Demand—Scrap Weakens 4 Vat in Un Week, One Month and One Year Previous t Week Heavy Type, Declines in Italics St Material oi de ae Comparison of Prices «2 «2 [he Iron Age Composite Prices 2 «2 X Steel Scrap ou z Pittsburgh Steel Gains Hold But Have Not Been Extended Britain Expects la rge Increase in Steel Sales to Canada | Continental Makers Report Improved Overseas Business, but | England's Export Business Is Stagnant LL Boston Scrap Prices Have Weakened } rN C4 | y +} 13 | ) lefinit | ation ap for Penn | market for is now ge a ( nvras ‘ i [ rail ‘ ain f I ar ' ve + ¢ ' Q al ‘ rap f Pe i . ths bh W ar f, () ; } Y By, | ar 1) PLN ‘ Scrap Buying r ‘~ ee Strenethe wo Grade: 124 Ships To Be Scrapped; $1.51 a Ton Best Bid 630 The lron Age. October 20. 1932 Chicago Steel Business Maintained | At the Average of Recent Weeks C: Eastern Railroads Have Placed Small Orders at Philadelphia : | vania Specifies a Light ng Slacken Golden Gate Bridge Bids Taken; Steel Requirements 116,590 Tons S Butfalo Pig lron Sales Decline; Shipments Hold ) ) Cleveland Trade Continues To Show Slight Upward Trend Without Much Support From Automotive and Buildin ind Railroads Gains Are Maintained (' Birmineham S Viakine Rate > NN ; ) I) incinnatt Pig Iron | rade Slightly Better New York Steel Orders Gat actin ss um. tine site ine But Tonnages Are Small les Running Ahead of Those of September Though 3 I ees ' Reinforcing Steel British Steel Output Gained in September : . i * Hearing on Dumping of Steel Set for Oct. 20 '> } B. & O. Railroad Receives $3,000,000“ Work” Loan Fabricated Structural Steel Awards Slightly Higher—New Projects Declin« LU NORTH SOUTH AND SOUTHWES Atown, Ve Pipe Lines VESTERN STATI Cast lron Pipe Railroad Equipment The lron Age October 20. 1932 635 Non-Ferrous Metals Generally Quiet; | Price | rends Irregular isht Rates on Steel 5 in Midwest Reduced Prices of Finished and Semi-Finished Steel, Coke, Coal, Cast lron Pipe NALS Hoo Iron oP. (? tober 20. > > Pig Iron, Ores, Ferroalloys >» VALLEY 4 HICAGO * NEW YORK 4 1 New York $17.4 >» PHILADELPHIA 4 b at F phia e a4 a? 54to 22.04 | Ferr lg ste s ca f Sto 22.5 , arbor ‘ 1 therwis | 1 > Ur e ear ‘ Frel rates | a $ * lvania I % a $4. from Virginia furnaces } t A >» CLEVELAND 19.006 t s t at Cleveland furnace | . : ) ' la . $ | 0 * : 4 § et i ery | er “ «1.5 | ma Va $3.05 t ¥ ‘ Valley ie nti j 15 18% per e n . f furnace pt n f ace ca y and si iron. ates a age w t | § ant i $ f Jacks Ohlo nateria i arloads Rockda Tenn bas | t ‘ $ nitag >» BIRMINGHAM 4 1 ln aie 04% ton, f.0.b. Birmingham d A int Ala per gross 3 age Fe ler ” l M de + $11 ) ate er 1 M kK g € t f > fur r f ar iots b CANADA 4 | n ; or 88, per n a | ar ese, gross ton, deliv | | t grade 5 $ grade es $5 a ton i Ores af . \ @ ' y Deliwered Le , $24 | Porta Per Gross i ‘ i r, 51 % iron $2 ¢ o essemer, 51.50% Ferromanganese uN er, 51.50% trox er Gross 51.50% tron ard $68.0 ! %, iro Gulf i 1 Ore if. Philadeiphte | Baltimore } Per — sland : Sriee i e free, 55 - aus Spanish or Spiegeleisen | Als me j wedlist average 8 r $ , I iry Swedish, Electric Ferrosilicon ag ndry Russian, Gross Ton ’ | = ho. 5 $77 § ut Ca 9 . + | MI Af 50 : 136.0 Soe “tart f.o.t Welland S = 4 9) age : : | Per Gross ss ar acs if it I nese wolframite Bessemer Ferrosilicon t to $ Jackson County, Ohle, Furnace gste scheelite $ Gross 7 } Per Grosse Ton . 7 if . $ r | 14% $ f 4 CreO r e [ 7 o " \ r 24.00 | . rel) cas 17% 6.50 ° Ss ilvery Iron Fluorspar Jackson County, Ohlo, Furnace Per Net Gross Ton | Per Gross 17 gravel. & fo.b $18 12% $ and Illinois mines $ 1a K : rf 85-5, f.0.b. Kentucky - 4% 5 r 5% I 8 ium fluoride ’ ” 4 r silicor c.i.f. At 5.5 luty paid. .$16.00 to N ground bulk, 8 Other Ferroalloys Anaride t “ j Pah ¢ nes . na A > PITTSBURGH 4 we t jelivered consumers’ yards R & 4 to s nana 4 te } 1 carwhe g t ad af Z 8 ) : A 4.§ , 8.50 to . ’ EN to ee : x Q x x rings : - a . g y f . ‘és 5 } ‘ . 18 Vet Ton : >» CHICAGO 4 arch bars, tran 5.00 to sr axles 11.96 to ch ago district consumers er er $¢ 4 ‘ > SO t | — on >» PHILADELPHIA 4 . >» CLEVELAND ¢ vere » BUFFALO 4 s ton f b Buffa ¢ > BIRMINGHAM 4 s ton deliv ™ yards NEW HICAGO 4 ; , >» DETROIT 4 YORK 4 W arehouse Prices for Steel Products RCH 4 BOSTON PAC! A . . ‘ $ ¢ At 4 * - fe NNAT 4 . f . a a 3 : The Iron Age. . 5 $ $ $ . T 4 geles $ $3.00 October 20. 1932 639 PLANT EXPANSION AND EQUIPMENT BUYINC Machine Tool Buying ~~ MI q NORTH ATLANTIC > Shows Some Gains October Improvement Follows Slight Advanc in September Official Index Figure N ’ I I ryt I V 1 yr Machine ( pr , er Ka ie, Ja tow ’ tree Mac! I I W i & | I 4 SOUTH ATLANTIC > Eastern Shore Public Service Co Atl Metallic ket I t Offi A ‘ I I r Mf Lu } I Ww h - ag ee ot a er a _ : 28 Pre if 4 ‘} F wig eo -__ “ a P 4 ‘ e. 4 . YY és se FOR THE me a Me eg .. STEEI COMPANY offers to users ft) p with higl I phy Sl i! properties ire supplied if of steel plates an extensive range of sizes and \Dproved y compositions, as rolled or heat treated gages as well as qualities and grad to meet all ( per may bi oyed with any quality or grade requirements whet to atmospneric corrosion | Structural steel for bridges, buildis hip ; na be glad to work wit locomotives. tanks and pipe line: the “‘qualit letermining the q ty of material to most ratel steels for stationary, locomotive and marine boile: non your needs. Exter man ind for stills and other pressure vessel n be furnished ! ind proper faciliti ire your in various tensile grades to suit apy tion. Spe CARNEGIE STEEL COMPANY - PITTSBURGH, PA. M 4 SOUTHWEST > iin ts ’ Off Mas e Products (« Howe Chai q CENTRAL DISTRICT > Ofthee n Co., M egon, M Cit ( ouncil M } Relian Foundry Co H Durant Motors Inc lar , Mi Ni n Brothers rliing Cabl (¢ H 0 Electr ( N Coun I id Tire & Rubber Co A Or & t I } } ( ibber products Ci Council M M 4 MIDDLE WEST > Cit Council, | Oo & Q We N Milwaukee Road } +} Illinois-lowa Bridge Co I } I tma El ( R Burdick incil ( I Mf ( Dole Valve Lo } ( i r — —E ——~- - — mn BUILT BY T MORGAN MSINEEVINg » » Pry i Pet es re o i ' Morgan Products Include BLOOMING MILLS : RIGINALLY known in the American Ruhr as The Hammer PLATE MILLS | Shop, The Morgan Engineering Company pioneered the YTINUOUS MILLS ' e . ° STRUCT IA DA LS : building of steam hammers for the forging industry in 1868 oe ie ; < < ELECTRIC RAVELING CRANES Keeping pace with the industry’s requirements, Morg i CHARGING MACHINES later years has built many high speed steam Hydraulic Forging NGOT STRIPPING MACHING ) : ; ; : . : : a A c 2ANES j Presses fo! producing heavy forgings in 800-ton press Is s : SOAKING PIT CRANES here, having a maximum stroke of 40’’, working stroke of STEAM HAMMERS : 1<0 ' , TEAM HYDRAULIC FORGING Single frame types are built from 150 to 500 tons capa sa “a tour column types up to 6000 tons Capacity Forging Hammer SPECIAL MACHINERY FOR } ‘ ; es STEEL MILLS are built in 150 to 40000 pounds capacity; Drop Hammers - are buil n LOOO to 16000 pounc apacity. | uilt in | to 1 pounds capacity | DESIGNERS MANUFACTURERS | THE MORGAN ENGINEERING COMPANY CONTRACTORS New York, 25 Broadway ALLIANCE, OHIO = Pittsburgh, 14 Oliver B 4 NEW ENGLAND > q SOUTH CENTRAL p> q FOREIGN > 4 PACIFIC COAST > Trade Notes Looking For Those EXTRA Production Hours If you are in step with the times to- day, you are lookin? for extra value in everything, you buy. Small tools are no exception. And you will get that extra value in the form of extra production hours by standardizing on Morse drills, cutters, reamers, taps and dies. No tools you can buy give a bigger dollar's worth of fast, uninterrupted metal cuttind. TWIST DRILL & MACHINE COMPANY NEW BEDFORD, MASS..,U.S.A. Lubrication in Drawing Sheet Steel Liquid Baths for Heat a - I re aling Dlacking Steel nt ( I I } ' ' ' ' ; —— eR a RE JONES & LAUGHLIN STEEL CORPORATIO anadian Representatiy JONES & LAUGHLIN STEEL PRODUCTS N AGE OCTOBER 20. 1932 J&L COLD HEADING WIRE J&L Cold Hea ling Wire gives unl o formly good results because, under J&L ‘oOmplete manutacturing con trol, the characteristics of the steels are varied to suit individual require ments. This difference in character ieveloped through special prac in the open hearth, blooming mills, normalizing, drawing and fin ishing. Every step is determined by J&hl,andexecutedbyJ&L Taking guesswork out of the steel making J&L WIRE PRODUCTS Wire Rods Cold Heading Wire Basic and Bessemer Wood Screw Wire . > - ry) ¢ ° ~~. > . - | incertainty out o! old head Basic and Bessemer Screw Stock Wire AE Ltrs Spring Wire Pot tae Ch CL Me bat er te vanized Wire Bright, Galvanized and Coated Nails Polished and Galvanized Te boy CT) : Galvanized Barbed Wire Woven Wire Fence % ree a MERICAN IRON AND STEEL JONES & LAUGHLIN BUILDING, PITTSBURGH, PENNSYLVANIA Atlanta c i J M mnh TA » AT v ' : r Viermphis Milwaukee New rleans New delr : Pit r ; A 118 San Ff rar CHICAGO CINCINNATI DETROIT Requirements and Composition of Cutting Tools teria \ ival! eed I nating L¢ I re I 1 of cutting It more robable that t luture Wi ee an ll rea ny numode f useful materia each filling a f a i nee I 1] n l i al : as AtomicHydrogenWelding } Concluded Page 612 from I nydarogen tant a < e tora casting die made of a tungster ee 4 crack at the top of t wa aired by building it up with new rey In front of this are die \ hardening tool steel having break ip! hat were welded and at the fror inother die casting core of tungster I which has a crack that wa W i ve ed At the right are two cutting I f oil- hardening steel used for t ng rubber heels for shoe Se ' tne sharp cutting edge I S which had been broken off wer the t up, prolonging the life of the mat lie In Fig. 2 are shown three s« nINng of a core used in a permanent gy ma ne for making a An ¢ I ! yt for automobiles Phe A et edge ( the core members became n off and were built up by atomic t rogen welding. ‘ picture was ken before the built-up surfaces ere machined off. Fig. 3 shows a having a crack that has been filled yy atomic hydrogen welding. Resurfacing Checked Dies +, \y ney ise made the proce 1S ‘ repairing tne Iriace Tt tungste fulne ( Lie ised in making alumi: a isting The die irfa ked by the aluminum, producing or fir he which cause fins and burt I tl iStings, and these must | ne off The we lding proce resurf these checked d Future nt iptT al n Or % Y rove! We ling proce hy t} ? al company wa } welding « el the se hrome-nickel tubes 3 in diameter with a %-in. wal Sper itions called for tubes to withstand held working pressure of 700 lb. per sq : n., and a 1000-lb. test pressure. Art ' ™ NATIONAL BOILER TUBES LAST LONGER V High tens: trengtl V Exceptional V Dependab! formity Seamless V Resistant to cort nf ; V Made from Why » ' } a” \ 5 r i ‘ Mater me wtiniform pbigph Prada j 4 ( A ALI i ( il Vay hroughout. BOILER TUBES iF] pacts 3 ‘ P | bout. BOILER Will r ful I remé sori rn ler ENDS, SUPERHEATER TUBI ; ; 5 CONDENSER TUBING {RCH er ] full { of the highest quality AND STAY-BOLT MATERIAI ee oh | Ask for Bulletin N 1M! PREFER! BOILER TUBES i NATIONAL TUBE COMPANY Pittsburgh, Pa. ‘re We Conse . , . - t ites oteci Cor Oration NO aS aes Industry's Excess Capacity Problem Dissected in adequate margin. It Is Known IS a credl lusive in The quality o nent 1s indu \ ry ‘ y medium oO coopera inknown a world advance yn of this d by any ire needs orporate Ps CIMATOOL iaonns ‘ ta ai Lit imejuirt CITY MACHINE & TOOL WORKS GRINDING & BORING CHUCKS -CHAMFERING, BURNISHING ,DIAMOND BORING,G SPECIAL MACHINES ‘ EAST DAY TON, THIRD AT OHIO, JUNE U.S.A.