The Iron Age 1930-10-02: Vol 126 Iss 14

Editorial Index, Page 41 THE IRON ACE Seventy-fifth Year OCTOBER 2, 1930 SbDECIAI SIrELS ray —~ ee THE RESULT of a quarter century of successful metallurgical research and practical development toward analyses combining— (1) Excellent Physical Properties (2) Free Machining Qualities IMMEDIATE DELIVERY Carbons 10— 1.00 “Pertinent Points” bulletins se Ws " ntain the fact Sizes +’— 10 e facts Write for them. Wee ock, Lovevoy & Co., INc. 128 SIDNEY ST., CAMBRIDGE A, MASS. CAMBRIDGE: NEW YORK: CLEVELAND: CHICAGO Wu AG-ENG LIK THE IRON AGE October 2, 1930 PROGRESSIVE —A DISTINCTIVE FEATURE or BECKER OVENS Whether in the design of equip- ment or in laying out a plant to derive the maximum advantage from a market situation, progress ep Re Ts 68e isa matterofcourse with Koppers. Every new plant involves the assembly of economic and tech- nical factors into a correct, in- dividual pattern. Bs Koppers has built 75% of Ameri- can by-product capacity and operates for its own account plants carbonizing over 7,000,000 tons of coal per year. Its experience en- ables it to realize for its customers the full advantage of coke and gas production in Becker ovens. “Becker Oven Plants assure economical coke and gas production.” KOPPERS CONSTRUCTION COMPANY KOPPERS BUILDING PITTSBURGH Foreign $12.00. October 2, 1930 \ ) \ <i tee: October 2, 1930 THE IRON AGE 3 SED by firms that are critical of results, for bushings, bear- ings, gears, valves, cylinder linings, rods, bolts, propellers, marine hard- RS | | are ware, etc., because it offers exclusive Be a . : ‘ qualities and advantages. . Available in ingots, castings, rods, wire, sheets, ropes, tubes. Let us explain the uses of the various grades. oe. a lle ¥ THE PHOSPHOR BRONZE SMELTING CO. 2200 WASHINCTON AVENUE, PHILADELPHIA, PA. 4 THE IRON AGE October 2, 1930 How Do You Spot R. R. T COSTS real money every time a gang of men is kept waiting for the loading or unloading of cars. Cc c Check up in your own plant; notice how inability to move a car to or from a siding interferes with the efficient movement of materials both inside and outside the plant. Estimate the cost of such delays over a period of a year, of five years, and you have the reason for the growing use of Caldwell Electric Car Spotters throughout industry. Pulling in any direction, a Caldwell Car Spotter moves from ait: ieee one to six cars. It may also be used for moving heavy bulky objects when necessary. Always ready, there’s no need to wait for the switch engine, or to resort to slow, dangerous hand methods. Priced exceptionally low, due to simplicity of design and use of standardized parts. Write for Bulletin 992 ~ seeped AAR Titi Sind sts which gives full details. H.W. CALDWELL & SON CO. Ion, LINK-BELT COMPANY Cc-144 CHICAGO: 2110 West 18th Street New York: 2676 Woolworth Bldg Dallas: 1101 Mercantile Bank Bidg. —— ta 1] sop re H - Nl B = ine Manapolis a 00 4 Belmont Ave Philadelphia ..2045 W. Hunting Park Ave. eet ansas City .Mo., K.4! i 02 Baltimore Ave Pittab ureh . «+R, 2125, 436 Seventh Ave Birmis hom 103 wo. Marx Bide Los Angeles 361-369 S. Anderson St Portland, ‘ Ore 67 Front Street R ta ak atl 3" idg Louisville. Ky 349 Starks Bidg San Francisco...... 400 Paul Avenue ; clan 4 7 Roc ~~ tt Bide e Milwaukee R. 1403 42 25 F. Water St Seattle .. eocceesee 820 First Ave. 8 — Toe eller B = Montreal -.. Insurance e xchange Bldg St. louls .. 3638 Olive Street twee ie a - New Orleans 19 S. Peters St Toronto 8........ Eastern Ave. & Lesile St iene tease a sf 7 I - ale Ave Oakland, Calif os 526 Third Street Vancouver ‘ -Standard Bank Building J i a g Wilkes-Barre. 826 Second Nat'l Bank Bidg. CONVEYORS - - ELEVATORS - - POWER TRANSMISSION EQUIPMENT aarti Settee: ss ial; PPI hn ~ October 2, 1930 AY Caps are one piece, insuring positive contact with the clips. "Vv" The knife-blade type Union Renewable Fuse also has an ex- clusive system of venting, few parts, substantial construction —and a link notched at both ends to permit quick, easy re- newals. These features and the rugged grey horn fibre casing are a guarantee of longer fuse life—a new fuse for the price of a link. JEFFERSON ELECTRIC COMPANY 1590 South Laflin Street, Chicago, Ill. THE IRON AGE GREATER SIMPLICITY... FEWER PARTS... Quicker, Easier Renewals are Features of the New ATi @e JEFFERSON Ferrule Type Renewable FUSES U it the simplest, most practical, easiest fuse ERSITY SERS who have seen the new ferrule type Union Renewable Fuse declare to renew. Besides the link there are only three parts—two caps and the casing. And the caps have no loose washers to drop or lose. To renew, simply unscrew the caps—pull out the link, insert a new one, screw on the caps —and the fuse is ready for service. It is designed to withstand blow- out after blowout—reducing yearly fuse costs. Venting which relieves the pressure caused by the blowing of the link, and makes long life possible, is secured by an exclusive method—through the end caps, not the threads. The link is held diagonally in the heavy horn fibre casing—keeping it from touch- ing and charring the fibre, or interfering with the accuracy of the rating. The link is supplied bent at only one end. The straight end is inserted in slots and bent over, in- suring correct fit automatically. Slots are large for easy cleaning and inspection and are so shaped that the link can not twist. Jot down a sample order for use on a few of your most troublesome circuits. Actual use will prove these superiorities. We will be glad to tell you which wholesalers handle Union Renewable Fuses in your territory. NEW HANDY FUSE WRENCH The handiest tool for tightening and loosening ferrule type renew- able fuse caps. Comfortably-sized hard wood handle, with hole in each end—one for fuses of 1 to 30 amp., 250 volt size; the other for 31 to 60 amp., 250 volt, and 1 to 30 amp., 600 volt. Your wholesaler has it. (1017) A New Aircraft Engine FERRO - ALLOYS t vanad silicon n and tita ium SI » man ganese,tungsten and molybdenum, produced by the Vanadium Corpora- ot America, are by steel makers production of steels VANADIUM STEELS THE IRON AGE With Proved and Dependable VANADIUM STEELS October: 2, 1930 In Crankshajts and Other Parts EVELOPED by Western Enter I) prise Engine Company of Los Angeles -a company with many years of experience in the design and construction of gas, distillate and Diesel engines—the Western Aircraft Engine is equipped with Vanadium Steel in its two-piece crankshaft, connecting rod cluster, connecting rod master, and the six pieces which comprise the con- necting rod links. Since the pioneering trans-Atlan- tic flight, record after record has been made in the air with engines equipped with Vanadium Steel in vi- tal parts. Engines that have spanned the Atlantic, the Pacific and the Poles have proved the dependability of Vanadium Steels in engine parts where high strength, great tough- ness and resistance to fatigue were the vital essentials. Perhaps your product will be better—possibly your manufactur- ing equipment will be more de- pendable and longer-serving —with stronger, tougher and more durable Vanadium Steels in important units. May we discuss the matter with you ? Write us today. VANADIUM CORPORATION OF AMERICA 120 BROADWAY, NEW YORK, N. CHICAGO PITTSBURGH DETROIT Straus Blde Oliver Bldg Book Tower Plants at Bridgeville, Pa., and Niagara Falls, N. ¥ > Research and Development Laboratories at Bridgeville, P for strength, toughness and durability c © rae maf: vepences ew ea October 2, 1930 THE IRON AGE Profit by this NLW MILA HOLDs iInNPUNCHES S ECU R E L : REELY interchangeable under all service P conditions, Hercules Interchangeable Punches and Retainers make it unnecessary to hold up production and remove dies from the press to replace worn or broken punches. Even on the heaviest work Hercules Punches remain as interchangeable as drills in a drill press. A detent with large bearing sur- face holds the punch secure against sever- R E LEAS ES ! ; est stripping strains, yet always ready for quick removal. FR E - 4 y gs Hercules Punches lend themselves profit- ably to practically all punching operations —setting new standards of performance. Their precision, superior steel and controlled heat treatment result in a punch vastly supe- rior to the usual product. The Hercules interchangeable punch system will effect great savings over your present punching practices. Let us show you how it may be applied to your jobs and save money on your die and production costs. = punch is tn place WHITMAN & BARNES NEW YORK DETROIT CHICAGO MAKERS OF FINE TOOLS FOR 76 YEARS HERCULES ae INTERCHANGEABLE raises Getent reales is free and Get the whole story! easily removed! Profit from this new idea in punches from the very start. If you haven't received your copy a of Catalog No. 94, write for one now. & ae ERS THE : xE October 2, 1930 8 THE IRON AGE Great Trains have brought Big Cities Nearer- Better products / built with— Ze are cutting down those great spaces between initial inquiries and the satisfaction that leads to faster sales. THE NEWTON DIE CASTING CORPN. 146 Munson Street New Haven, Conn. ATTRACTIVE PRODUCTS i ‘ ie i e 2 " j a "fi % S ee ps , ¥ 2 ee 23 x yh > Cf ve “> * eo « ' selling battle. NDC26 October 2, 1930 HE pungent odor of newly turned earth. Row on row of deep, even furrows, as far as the eye can see. At the end of the furrow stands a giant tractor ... fresh, eager for more work .. . even after ten hours of consistent plowing! A far cry, indeed, from that classic, dismal fig- ure of the poet ... “The plowman homeward plods his weary way...” Thank the tireless tractor for the liberation of the farmer! Thank the unending energy of this mechani- cal giant for today’s huge crops— so important a factor in our pres- ent standard of luxurious living. And thank alloy steels for the trac- tor! For ordinary steels are too fragile, too weak to withstand the punishing grind to which modern farm machinery is subjected. Agathon Alloy Steels have solved the metal problems of many a machinery manufacturer. And Agathon Alloy Steels can solve your metal problems, too —economically, efficiently. IRON AGE Republic Steel Corporation, world’s largest producers of alloy metals, maintains a staff of distinguished metallurgists for your conve- nience. These specialists will be glad to consult with you. They’ll designate a specific metal to meet your FURROW! needs; create an entirely new alloy for you, if necessary. Their services involve no obligation. A line on your letter-head will arrange a con- ference. Simply address: Central Alloy Steel Division, Republic Steel Corpora- tion, Youngstown, Ohio. THE IRON AGE October 2, 1930 ‘MOST UP-TO-DATE™ said the Operator | af ‘ . SY eg a y ma . a { SEMET-SOLVAY ENGINEERING CORPORATION designed and built this screening station for SLOSS-SHEFFIELD STEEL AND IRON COMPANY at Birmingham, Ala. Coke can be loaded simultaneously on six tracks, permitting rapid shipment of clean, accurately-sized fuel to meet any market demand. Semet-Solvay Engineering Corporation applies to its designing of coal gas and water gas plant fuel handling systems, the widest technical and operating experience in coke and gas production. Your inquiries are invited, whether you need a complete new unit, or only minor changes to in- stalled equipment. - ond. agen , ~EMET-DOLVAY ENGINEERING CoRFORATION Division Allied Chemtcoland Dye Cor AG RECTOR S1 New Yori October 2, 1930 THE IRON AGE 85,000 waffle-iron grids produced by this die casting die made of Vasco MaRVEL at the time this photograph was taken. But this record is not top VE production by any means. If you use hot die steels Vanadium engineers HOT DIE % I EEL have an interesting story to tell you about MARVEL. — Y trace ¥ vasco | MARV marx #& Hot Die Stcel THE IRON AGE October 2, 1930 NIM + a ¥ Guild Ideal of Doing One Thing Well Now § ry j ‘ ' ' ' riistory records that early in mediaeval tin Black Sheets Automobile Sheets ‘ ; . i recognized fact that it was best to do one well In 1363 craftsmen were by law re red to stick to one guild. Apprentices were Metal Furniture Sheets epted for but one craft and were prohibited Ceiling Stock law from following no ‘other work excepting Locker Stock—Regular and Special that to which they had been apprenticed. Thu Japanning Stock—Regular and Special Pe Single Pickled Sheets o1x hundred years experience has served to em B phasize the importance and worth of this idea of ow Socket Sheets lI specialization Milk Can Stock 1 MR »egan the idea of specialization six centuries ago October 2, 1930 THE IRON AGE MA athe Pickling 7 | Kept Alive by Empire Steel Specialization Fully realizing the advantages of specialization, . 3 Empire Steel Corporation has steadfastly refrained Enameling Stock F y refraine : from the temptation to manufacture anything but Auto License Plate Stock the one special line. Undivided attention is de- Nickel Plating Stock Full Pickled Sheets Electrical Sheets Copper Bearing Sheets in all Finishes *“Wabik’”’ Metal— (Special Vitreous Enameling Stock) voted solely to the manufacture of steel sheets. It stands to reason that this concentration has made possible a superior product which merits your consideration. EMPIRE STEEL CORPORATION Mansfield, Ohio )fices: New York-Philadelphia-Cleveland-Detroit Chicago, 520 No. Michigan Ave.-Indianapolis-St. Louis iy qe ft Shall Spine gs faa October 2, 1930 THE IRON AGE October 2, 1930 THE IRON AGE The ability of SMITH- Welded Line Pipe to stand rough treatment saves many minutes — minutes that quickly mount into more miles of completed pipe line. A. O. SMITH CORPORATION General Offices; Milwaukee, Wis. Oil and Gas Field Products Division District Offices at: New York . Tulsa . Houston - Los Angeles THE IRON AGE October 2, 1930 aT | The diversity of products manu- ired by us includes every tactured DY us INncLUGE V y } f oy rec tvpe and size of Power Press the smallest Open Back In- ] 4 — : 1 mS 1 clinable t tne irgest singie ant ¢ hai a 7 ouble Crank Toggle: Fabricat- ing Tools such as Punches, Shears, 1dine and Straightening Rolls, -otary and Plate Planers, Flang- Clamps and Wall Radial Drills: Small Tools including 1es, Dies, Rivet Sets, Shear slades, Coupling Nuts, Pistons ng *hisels and Chisel Blanks. ‘he illustrations shown of vari- us tools are more or less typical they could be multiplied hun- dreds of times and if you are in- rested in any of the products listed above the probabilities are that we can refer you to some user in your particular neighbor- Cleveland Power Presses are being used so extensively that it is practically impossible to list many products being produced on them; however, if you have a tamping, forming, blanking, piercing or any other problem involving the use of Power Presses our engineers will be pleased to give you the benefit of their practical experience in se- lecting the proper press for your particular requirements. POWER PRESSES FABRICATING TOOLS SMALL TOOLS FROM THE SMALLEST PUNCHES, SHEARS, PUNCHES, DIES, OPEN BACK NCLINABLE PLATE AND ROTARY RIVET SETS, CHISELS TO THE LARGEST SINGLE PLANERS, BENDING AND AND CHISEL BLANKS AND DOUBLE CRANK TOGGLE STRAIGHTENING ROLLS, SHEAR BLADES, PISTONS WALL RADIAL DRILLS. COUPLING NUTS. THE CLEVELAND PUNCH & SHEAR WORKS CO. CLEVELAND OHIO, U.S.A. NEW YORK — CHICAGO — DETROIT — PITTSBURGH October 2, 1930 THE IRON AGE y Results are guaranteed * when you use— FLINN & DREFFEIN RAW PRODUCER GAS BURNERS > > These burners are a great forward step in industrial heating economy. Besides an appreciable saving in fuel, you obtain bet- ter control of heat and a decided saving on labor charges. They are built to handle either cold or pre-heated air and can be readily adapted to your present furnaces. Recommendations for equipping your ex- isting furnaces will be made gladly. Information for design- ers working on new equipment is available also. The NEW FLINN & DREFFEIN Continuous Billet Heating Furnace Successful In- dustrial Heating Engineers for 23 years. assures you from 40% to 60% greater capacity per sq. ft. of hearth, with a consequent fuel saving, and freedom from scaling and slagging of billets and om Flinn & Dreffein Company Let us give you the com- plete details. 308 West Washington St. Chicago, Ii. MAKES ALL OF THESE STEEL PRODUCTS enabling you to obtain, from a single reliable source . . . steel for practically every need TANDARDIZE on J] & L Steel. You can, be cause during its three-quarters of a century of experience in iron and steel making, the Jones & Laughlin Steel Corporation has constantly added new products to its line until there is, today, |} & L Product to meet practically every require ment for steel. All your operating departments will be supplied with steel of uniform quality ; ind, in addition, you will save all the time, clerica labor and ov erhead expense that division of pur chases among many makers entails upon your organization. While you may order from the J & L mills at Pittsburgh and Aliquippa, Pa., for regular re quirements, in emergencies you have the advar tage of being able to obtain quickly, from J & | Warehouses in Chicago, Cincinnati, Detroit and Pittsburgh, J&L Steel Products of the same quality you are accustomed to receiving on mill orders. THE IRON AGE October 2, 193. OPEN HEARTH AND BESSEMER STEEL HOT ROLLED PRODUCTS Billets Blooms Slabs Sheet Bars Skelp Bands Flats Hexagons Rounds Squares Angles Beams Channels Tees Zees Agricultural Shapes Special Shapes Light Weight Stair Stringer Channels Plates for Bridges, Tanks, Boilers, Cars and Ships RAILROAD SPIKES TIE PLATES Light Rails and Accessories BARS FOR CONCRETE REINFORCEMENT Straight, Bent and Fabricated FORGING STEEL JALCASE STEEL Hot Rolled Cold Finished COLD FINISHED STEEL Rounds Squares Hexagons Flats Special Shapes Free Cutting Screw Stock Shafting (Turned and Ground, Turned and Polished, Cold Drawn) Pump and Piston Rods JUNIOR BEAMS STEEL PILING FABRICATED STRUCTURAL WORK Columns Girders Trusses Plate Work Tanks Steel Barges Mill and Factory Buildings TUBULAR PRODUCTS Standard Pipe Line Pipe Casing, Tubing, Drive and Rotary Drill Pipe in Lapwelded and Seamless WIRE PRODUCTS Wire Rods Bright, Annealed and Galvanized Wire Spring Wire Barbed Wire Woven Fencing Bright, Coated and Galvanized Nails Fence Staples Netting Staples TIN MILL PRODUCTS Coke Tin Plate Black Sheets (Tin Mill Sizes COKE BY-PRODUCTS JONES & LAUGHLIN STEEL CORPORATION AMERICAN IRON AND STEEL WorkKS Sales Offices Atlanta Boston Buffalo Memphis Milwaukee Warehouses: *Distributing Warehouse for Pibe Canadian Rehresentative OE ae aI al pl IE Se Chicago Chicago JONES & LAUGHLIN BUILDING, PITTSBURGH, PENNSYLVANIA Cincinnati Cleveland Dallas Detroit Minneapolis New York Philadelphia : Denver Erie Los Angeles Pittsburgh St.Louis San Francisco Washington Cincinnati Detroit *Memphis Pittsburgh » Wire Products, Sheets, Sbikes and Bars for Concrete Reinforcement JONES & LAUGHLIN STEEL PRODUCTS OMPANY, Pittsburgh, Pa., U.S. A., and Toronto, Ont. a ae ee = A FN AR EE EL AN EN CR ONO NS OT 8 CN LTE LE EE ITE => til > — Ed td \ BARNES MADE erew Machine PRODUCTS to special specifications or exacting tolerances Any material up to 14’ diameter May we Quote ? Cold Rolled Saitees Steel Annealed or tempered Regular Carbons in stock or Special Analyses to order Great many sizes on hand for immediate shipment Ask for our quarterly “‘stock”’ list .Barnes-made Springs Small Stampings and Spring Washers ANY KIND > (Phat ANY QUANTITY ANY MATERIAL — SPIRAL — TORSION — ONE TO A MILLION — DELIVERIES TO SUIT Watch for our Green Insert 7 HE W ALL ACE BARNES CO., B BRISTOL, CONN. see Dar — aware hhhh bh & & & 4 4 tr 4 ty tr te te tn ol) T takes Knowledge to design a good spring 2 om Qa ~ f~ \\\\ Wy e \ S\ J? @ fi l 0 f n the surface, Dut a a _— has to be desionesd ( Consult partment with your We will be glad to nuch O It doesn’t show so 1 L i or its particular work. our engineering de spring problems. help you solve them and with no obligation on your part. + ‘ ‘ i tla ‘ > ‘ CL t 47 PT > RAYMOND MEG. CO. CORRY, PENNSYLVANIA aa BAAALAAAALALALALLLAALLLAA444*4*** VvTwrvwvwvwvrwvwvwvwvwvwvrwvwvwvwvwvwvvvyv WE DO GET ’EM OUT (GIBSON-SPRINGS) ANY DESCRIPTION ANY MATERIAL WM. D. GIBSON CO. 1800 CLYBOURN AVENUE CHICAGO, ILL. DETROIT DIVISION 6400 MILLER AVENUE, DETROIT COOK SPRING CO. DIVISION ANN ARBOR, MICHIGAN > y OF ; BARNES-GIBSON-RAYMOND o INCORPORATED October 2, 1930 THE IRON AGE MANEIMODN FALWAYWS, Behind the super-power of many modern power plants is the super-strength of ‘‘Standard’’ Seamless Power Piping —securely harnessing the powers of thdusands of steam horses—safely guarding the pent up force of super-heated steam and sending it to the tasks of industry. **Standard”’ Seamless is nationally distributed and readily available in any size, dimension or standard specification. SPANG, CHALFANT & Co., INC. General Offices: CLARK BUILDING, PITTSBURGH, PA. Seles Offices: CHICAGO, ILL. NEW YORK,N.Y. ST. LOUIS,MO,. PITTSBURGH, PA. TULSA,OKLA. LOS ANGELES, CAL, Welded Mills: ETNA, PENNA. SHARPSBURG, PENNA. Seomiess Mills: AMBRIDGE, PENNA. Seamless Steel DOWER PIPING THE IRON AGE October 2, 1° om ANNOUNCING ««« A NEW SERVICE A LARGER STOCK » » You can have a Bunting bearing engineer in your plant within 24 hours to counsel with you on the design, alloy and applica- tion of the bearings in your product. Such engineering counsel does not cost you anything nor obligate you in any way. It is a new service rendered by our staff of traveling engineers who will apply to your individual bearing problem the new and valuable knowledge gained in our research work in collabora- tion with the United States Bureau of Standards. New and lower prices are now effective on all Bunting Quality Phosphor Bronze Bushing Bearings. Readjust your cost figures in conformity with this reduced price of bronze bearings. We have added 50 sizes to our list of Bunting “Ready Made” completely machined and finished Bronze Bushing Bearings, Write For This always carried in stock for immediate delivery at the factory NEW Loe and all Bunting branches. These new added sizes greatly Stock List le expand the application of “Ready Made’ bearings to all ite a be NS mechanical industry. Write for this new and larger list showing ur new stoc Pi, > y ; | list card... showing COQ the added sizes and lower prices. dimensions of 500 Oh . ae e : Bunting" Ready Made” 1) Here are three big, distinct, valuable contributions to a better ready-for-assembly bronze bushing bearings, which you can pro- cure as you need them and at sharply reduced pehcas; avy. gna te tecaty anciiele ot THE BUNTING BRASS & BRONZE COMPANY any time. This card should be in every engi- TOLEDO, OHIO neering department, drafting room and sh i : Op. Branches and Warehouses at New York, Chicago, Boston, Philadelphia, Sen Francisco e@ ror ik. Export Office—Toledo, Ohio BUNTING QUALITY” PHOSPHOR BRONZE BUSHING BEARINGS PATENTED product and a lower cost in your own operation. October 2, 1930 THE IRON AGE JUDGE CRANE VALUES THE WAY BIG USERS DO You Can Profit by Their Experience Of all the locomotive cranes in service, those purchased by the rail- roads, iron and steel com- panies and the big utilities are the ones most often bought solely on perform- ance records. Some of these companies use and keep costs on hundreds of Thirty-ton capacity Gasoline Powered Locomotive Crane coaling a locomotive. Because of their fast operating speeds and dependability, thousands of Industrial cranes, their handling work is hard, and they employ large engineering staffs who know crane design and pass on every purchase. Consequently, their judgement is valuable to anyone interested in the economical handling of materials. Go to any of these large plants through- out the country and ask their opinion about an Industrial Brownhoist. Let them tell you that no better cranes have ever been built, that they will handle materials at a lower cost per ton and that they will stand Brownhoists are used by the Nation’s Railroads for all kinds of handling work. up better and last longer. Consider, too, that this is not just idle talk because these same industries have bought far more In- dustrial Brownhoists than any other make of locomotive crane. Industrial Brownhoists are sold by our own factory-trained men. Discuss your material handling methods with them and you will find that their experience makes possible many helpful suggestions. There is no obligation, of course. Industrial Brownhoist Corporation, General Offices, Cleveland, Ohio District Offices: Plants: New York, Philadelphia, Pittsburgh, Detroit, Chicago, New Orleans, San Francisco, Cleveland. Brownhoist Division, Cleveland; Industrial Division, Bay City, Michigan; Elyria Foundry Division, Elyria, Ohio. INDUSTRIAL BROWNHOIST THE IRON AGE October 2, 1930 In THIS YEAR of smaller profit margins, the concern with the lowest production costs will win. We are prepared to prove that Baker Trucks can reduce handiing costs in production by as much as 75%. And that, too, without adding to capital charges because Baker Trucks actually pay back their entire purchase price—in payroll saved—in from 3 to 12 months. Baker Industrial Truck Division of THE BAKER-RAULANG COMPANY 2180 West 25th St. +4 Cleveland, Ohio 't WEGT VIRCU October 2, 1930 POT | Made by the pioneer makers of Nickel- Chromium Steels NV hen alloy steels were first resorted to, in the search for materials having higher physical proper- ties than the steels then available, it was found that nickel-chromium steels made with the natural nickel- chromium alloy, Mayari Pig Iron, as a base, pos- sessed an extremely desirable combination of the properties that make for long life in service. The organization which first made these Mayari Nickel- Chromium Steels later became a part of Bethlehem Steel Company. Consequently Mayari Nickel-Chromium Steels, in addition to the inherent excellence and high shock-resistance due to their composition, have a remarkable,though intangible, superiority arising from manufacture by the pioneer makers of alloy steels of this analysis. Long contact with users of alloy steels enables Bethlehem to THE IRON AGE NICKEL-CHROMIUM 25 0° TOT eA STEELS RR a RS TE RE ane ORL focus on each consumer’s problem the resources of knowledge and skill that have been accumulated through many years of experience. If you have a condition that places-unusual de- mands on alloy steel try Mayari Nickel-Chromium Steels. They have built up an enviable reputation tor dependability. BETHLEHEM STEEL COMPANY General Office: Bethlehem, Pa. District Offices: New York, Boston, Philadelphia, Baltimore, Washington, Atlanta, Buffalo, Pittsburgh, Cleveland, Cincinnati, Detroit, Chicago, St. Louis Pacific Coast Distributor: PACIFIC COAST STEEL CORPORATION, ~ San Francisco, Los Angeles, Seattle, Portland, Honolulu Export Distributor: Bethlehem Steel Export Corporation, 25 Broadway, New York City . BETHLEHEM . THE IRON AGE October 2, 1930 Every flat bearing surface on Cincinnati Rapid Traverse Shapers has a gib. They are full length tapered gibs with a single screw adjust- ment. The Cincinnati sliding block is gibbed—an im- portant and necessary feature. The ram bear- ing has a full length tapered gib which forces the ram bearing to wear straight—an equally important feature. If vou appreciate the value of single screw adjusting full length tapered gibs:; if you appre- ciate the value of a uniform adjustment from a single-point: and if you demand a take-up on every flat bearing surface—your next shaper purchases will be limited to Cincinnati Rapid Traverse Shapers. Phe Cincinnati Shaper Co., Cincinnati, Ohio A >, ay fit a CINGINNAT | October 2, 1930 THE IRON AGE | he ayes Cracks the Whip! s Wis you get an order today, the b buy er specifies - the delivery—how different from. those golden days of '29! And you're probably not carrying the stock of bolts you used to—inventories being what they are these days. ~ So when that order has to be out in no time at all . oa and you're stuck for bolts . . . call any Russell, Burdsall & Ward office: Three great plants to draw from. . . practically over-night service. y RUSSELE, BURDSALEL &A WARD BOLE AND NWE COMPANY. PORT CHESTER, N. Y. ROCK FALLS, ILL. CORAOPOLIS, PA. Philadelphia - Chicago + Detroit be : San Francisco - los Angeles ee ra Seattle - Portland ORIGINAL p URCHASE ORDER Date NOVemb op lé ig , 30 F. Q. B Terms Net 30 Day w | aaa kage st or : —~F ry ica # ‘ os THE IRON AGE October 2, 1930 .Tbiv.. onlin abers a. 1 95 Reade Stre. vuurr; ~~...68, Meoufecturers of -nerican Hardware. Boring Machines, !S, Coo's & Taft's Pattora Wrenches. Portable Forges. Aeagereand Auger Bits. Qiaslete and Gimilet Bite. ovanos shattnct'e Family and Censter*aie, — | COL EVIg PATENT WHIP RACK. a SS Hammer Handles. CEOROCE WHEELER, _ Meuse Trape. lis CHAMBERS ST. KEW YORK AGERT. ed WIB « CO., WIRE tw YORK. ow C0,, sin eet Iron, .R, WIRE, *, Solder, &c. SSS” BTANDINYG '9 Beekman Sts. SUSPE: 8ST. Nes. 1716, ee SKIN AND id Cobalt. ren . Makvrsac 4 fcCOY, WIRE vew York. which will he Sieves, Riddles, Wo. & CM St, icy, Faller, Dana & Fitz, MORTON,REED&CO,, Hartfo rk, [NPORTERS AXD COMBIFFION MERORAXNTS, rire Goo? BOATON, . . 110 North pereet. | We. @5 South Gay Street, BALTIMORE a SPEL Tin Plates, Sheet Iron, Metals, fren, Steel, Etc. | METAL BROKERS. aes Exclusive Roston Agents for the of Morris, Tes MArcractcernes’ os § ker a: o 3 Lap Welded Boiler Tebes. e Wreaght { a ae CEL, Iros Beams, « olnrans, ete. Pater’ Dwtwas ~“e. re ey Ln iree , Machinists’ Ss ‘ew EINE ~asea rer th wat Brows a Ag aad Fe October 2, 1930 THE IRON AGE The skill of the advertising ‘“‘ex- perts”’ of 60 years ago was, seem- ingly, measured by the amount of material they could crowd in a given space. Each advertisement contained its full quota—sometimes cuts, but always plenty of type in a wide assortment of styles and sizes. No space ‘‘wasted.” We can almost hear them say, “What! pay for white space?” was Yet it is not so long ago when the cry was for white space and more white space. in the best advertising circles. New? How about this advertise- ment which was published in The Iron Age in 1873! Here is white space, and how it did make the ad- vertisement stand out. Yet radical as this advertisement was, it 1s doubtful if the idea was entirely new even then. This type of layout had undoubtedly been used by others years before. It was the new idea And what of future advertising? What will it look like? Will new ? ¥ methods of presentation and new selling slants be evolved. Probably, but no one knows what the trend will be. Just now it is all white space. So with our industrial future—it is still white space to be filled with the record of tomorrow’s accom- plishments. It is with these that the 75th An- niversary Number of The Iron Age to be published November 20, 1930, will be concerned. It will be its function to discover what marks we may now place on the white pages of the future. It is going to look back in order to see ahead. It will penetrate the shad- ows cast before important events in the past so that we may recog- nize the shape of the present shadows that are significant of future events. It will give you a splendid oppor- tunity to present the picture of the part which your products have played in industry in the past and will play in the future. a EE EC CR IT TET TI SS saeeeeeieeememene 30 THE IRON AGE October 2, 1930 22 Pieces per Hour —200 per Sharpening A cast iron vise slide—eight surfaces milled fast and accurately by a gang of Brown & Sharpe Cutters. Two Half Side Milling Cutters, two Milling Cutters lhe cost of and two Inserted Tooth Side Milling Cutters remove ten Time Lost Removing Cutters cubic inches of material per minute at a spindle speed Paes Thee Lam egeeens of 49 R.P.M. and a table feed of seven inches per minute. Cutters Plus Lost Production si . The production schedule shows an average of twenty- I = Plus Sharpening Cutters ¢ Plus Original Purchase iwo pieces per hour—a high production which is ably Equals maintained since the gang mills two hundred pieces REAL Cost of Cutters between sharpenings. What is the Real Cost of Your Cutters? On every job, Brown & Sharpe Cutters afford oppor- tunity of lowering cutter costs. Ask for your copy of Small Tool Catalog No. 31 listing a complete line of cut- ters. Brown & Sharpe Mfg. Co., Providence, R. I., U.S.A. Eight Surfaces — milled rapidly and accurately The Brown & Sharpe Cutters, at a minimum number of interruptions for sharpening, main- tain satisfactorily the fixed distances and ip between the surfaces Brown & Sharpe Cutters Lower Production Costs October 2, 1930 THE IRON AGE oP oes wo Se Ae SESE ROS es Dai ha LN al ke OE ds ae * The above illustration made from unretouched photographs The small castings bay of the Industrial plant is specially organized, equipped and manned for efficient production of castings of the type shown in the above illustration. Users tell us that Industrial castings are exceptionally uniform, clean and sharp, even when the pattern is intricate and involved. Such castings are ideal for machining and actually reduce machining costs ... The best way to test the suit- ability of Industrial Steel Castings to you needs is to send a small trial Iuld With Steet Castings ; 7 . : order. Or blue-prints may be mailed for quotation. THE INDUSTRIAL STEEL CASTING COMPANY - TOLEDO, OHIO THE IRON AGE October 2, 193) HAVE YOU CHECKED % “ “ 4% BLAST PRESSURE LOSSES BETWEEN STOVES and FURNACE ? A 5b. difference in blast pressure between blowing engine and furnace tuyeres was found at a blast furnace plant. Investigation disclosed the major portion of the loss to be through the angle type of hot blast valve and its connections. Substitu- tion of the Mathesius Hot Blast with its straight-way connections reduces this loss to a few inches of water. This pressure drop is a direct operating loss in unnecessary steam or power consumption. In many cases, this limitation on the maximum blast pressure delivered at the furnace represents a limitation of pig iron output. In designing new or remodeling old hot blast stoves or air mains, careful consideration should be given to the type of hot blast valve. This is particularly important where additional blast volumes are required in rebuilt blast furnaces. 2 CE RE NTT MATHESIUS ER RS MRE TRL ATR Hot Blast Valve This valve consists of a cor- rectly tapered gate swinging and moving freely between two par- allel bronze seats. Both gate and seats are water cooled. The advantages of this valve lie in the very low pressure loss thru it, in the absolute prevention of leakage and in the straight-way connection between the stove nd hot blast main, which elim- inates the right angle bends and difhcult brickwork in the mush- room type of valve. There are over 175 installations. FREYN-DESIGN e Let us tell you more about the Mathesius Hot Blast Valve. A descriptive bulletin will be sent at your request. treyn Engineering Compan CONSTRUCTORS - ENGINEERS = SPECIALTIES 310 South Michigan Avenue CHICAGO, ILLINOIS October 2, 1930 THE IRON AGE 33 UNIFORMITY With Densite @ One of the outstanding features of Densite Refined Steel is its uniform grain structure. Microphotographs shown at the left were made from 1" rounds and range from .39 carbon to A8 carbon, 100 ton heats—basic open hearth. @ UNIFORMITY OF PRODUCT is another of the many virtues Densite brings to steel. Of thousands of tons of Densite Refined Steel shipped to many different customers, none have been rejected—in fact not one has required the services of a ‘trouble shooter’ to keep it sold. Densite steels don't come back; they stay sold because of their superior quality. Steels treated with Densite, whether plain carbon or alloy, are cleaner, more uniform and tougher. ant he oe Vil, & ae ay ie 4 oe ter ee ate A Ae alt ae ae) Le bP ee re ™ — Ps a) @ Steel makers and users alike can profit by using Densite. If you make steel, write for further information. If you are a user of steel, specify “Densite Refined” when ordering your next requirement from your REGULAR source of supply, or write us for further information. p= Py. Pa - ae oe oF a aes BF es ty #3 on Sy pW ot bef ww, Ad eal ie ae . A 4 a S #4; ee eet ene alien DENSITE CORPORATION OF AMERICA LG ALO OLE OTS LE TL TT TE SS Normalized CLARK BUILDING " PITTSBURGH, PA. THE IRON AGE October 2. 1! Mill Housing. Size 13' 2" x 24'x 5' 2". Weight 165,800 pounds Drive Gear. Size 15'8 P.D. x 52°F. Weight 85,280 pounds. nn RY, VANDERGRIFT, PA design and equipment coupled with the application of scientific etallurgical practices, the plant em- »d uch potent factors in the produc- of steel castings as to place it oremost among steel foundries in capacity and excellence of product. Located away from any large city, we have the undivided service of good railroad connections, insuring promptness ; in the delivery of our material and the om shipping of our finished product. Mia Pinion. $2 Weight 121,220 pounds October 2, 1930 THE IRON AGE his Sure 3 ee ets es *_ —- , BY Mt LS tee. A. shipment from the United Steel Largest Continuous Plate Mill, which Foundry of just a few of the massive is now being erected in United machine steel castings required for the World's iE a. Hub for 21' 4 P.D.x 6'3° F. Gear. Weight 82,100 pounds Shear Housing. 15'10)4"x 22'2". Weight 151,100 pounds = & eases ' COMPANY a ie y ENGINEERING & FOUNDRY COMPANY - | The ee DOL THE IRON AGE ww yaar 2510 S ( —) SAN FRANCISCO FOUCAR, RAY & SIMON Kearny -5975 “Pittsburgh” Seamless Mechanical Tubing Service is as Close as Your Phone... Whether You Need a Pound or a Carload in a Hurry— Call Your Nearest Dealer. Quick deliveries are assured by large stocks main- tained by jobbers in the cities shown on the map above. Get aquainted with your local dealer for prompt service. Pittsburgh Steel Products Co. Pittsburgh (Pittsburgh Steel Co Detroit New York Chicago St. Louis Tulsa Houston a i October 2, 1930 BOSTON—Edgar T. Ward’s Sons Company—50 Farnsworth Street, Telephone LIBERTY 2770. BUFFALO—Edgar T. Ward’s Sons Company—39 River Street, Tele- phone WASHINGTON 5171. CHICAGO—Steel Sales Corporation—129 South Jefferson Street, Telephone FRANKLIN 4280. CLEVELAND—Cleveland Tool and Supply Company—1473 West Sixth Street, Telephone CHERRY 2510. MONTREAL— Drummond, McCall & Company, Ltd.—930 Wellington Street, Telephone MARQUETTE 7061. NEWARK— Edgar T. Ward's Sons Company—400 Frelinghuysen Avenue, Telephone TERRACE 3300. PHILADELPHIA—Edgar T. Ward's Sons Company—Cedar and West- moreland Streets, Telephone NEBRASKA 6400. PITTSBURGH — Pittsburgh Steel Products Company--Union Trust Building, Telephone ATLANTIC 4760. SAN FRANCISCO — Foucar, Ray & Simon—512 Folsom Street, Telephone KEARNY 5975. Pittsburgh Seamless MECHANICAL TUBING October 2, 1930 THE IRON AGE Steel is a superior material for thousands of purposes. Inland strives to help steel users and Industry generally by supporting all constructive efforts to educate the public to the advan- tages and correct uses of steel in its many different forms. But Inland goes further. By research work, by service—Inland increases savings from steel. Our vast resources are applied without stint to the problems of improving steel as a material for Industry’s use . . . of producing a better steel for each application . . . of helping Inland users save more for them- selves and for their customers by building up an ade- quate and reliable source of supply for the Cen- tral West. Standardize on Inland... i crease, protect your sav- ings from steel. INLAND STEEL COMPANY Se py RVANT oF nh ~ THE awe 38 SOUTH DEARBORN STREET, CHICAGO SHEETS, BANDS, BARS, STRUCTURALS, PLATES, RIVETS, RAILS, TRACK ACCESSORIES, BILLETS IRON AGE October 2, 1930 TOOL STEEL ELOKS FARTHER waste it. The Sellers Tool Grinder automatically dupli- at Se lle rs “te fd Ua li f Ye cates the exact required angles and shapes of cutting tools, raX a steel is expensive—don’t grinding away only the minimum amount of metal necessary to produce or restore the correct shapes. With the Sellers Tool Grinder, one operator grinds all tools ina centralized tool-room. Every grinding produces the maximum quality and quantity of work because the tool is right by formulae—not approximately so, according to each workman’s individual opinion or skill. Standards are established and maintained. Production is speeded up because workmen remain at their machines. Rejections due to poorly ground tools are eliminated. Labor costs for grinding are minimized. WILLIAM SELLERS & COMPANY INCORPORATED Oe ae PHILADELPHIA.USA strial Tools comprise Drill Grinders, Tool Grin- Sellers Railroad Tools comprise Car Wheel Lathes, Driv- ral Gear Drive Planers, Boring and Turning Mills, ing Wheel Lathes, Car Wheel Borers, Driving Box Borers. ring Machines, Planer Type Milling Machines, et« i" 7 aa RS Also manufacturers of Sellers Locomotive Injectors. MACHINE TOOLS re October 2, 1930 THE IRON AGE UNIFORM WIRE puts FENCE within the reach of ~ ALL INDUSTRY A NEW respect for property rights has come into being... ravages from arson, vandalism and destructive forces from without are thwarted and protected boundaries are the order of the day .. . Wick- wire Spencer Chain Link Fence is aaaie fr aaanaig ehale ones eae elem, ee eee within the financial reach of every trance to and the exit from private properties are con- ° trolled ... when protected by Wickwire Spencer Fence. industry. The manufacture of Copper-Bearing Steel wire, so uniform WICKWIRE SPENCER as to permit its being woven on high speed looms, has MAKES UNIFORM ° . i . brought this about. Galvanizing after weaving has made Wire of all kinds * Stes Seas this fence rust proof and permanent. Wire Reinforcing Fabric Clinton Wire Lath The lifelong endeavor of this Company has been to produce Wire Screen Cloth Wire Poultey Netting the most uniform wire possible and the finest wire products. Chain Link Wire Fence Years of costly research, strict adherence to scientific Wire Springs & Spirals hod d h d f | i ] a Wire Grilles & Cages met s and the most modern type of pliant and equipment Wire Diamond Mesh have made this ambition a reality. Perforated Metal Grilles Perforated Metal Screens if — . a a WICKWIRE SPENCER STEEL CO. Wisseo Card Clothing 41 East 42nd Street New York City Wissco All Steel Worcester Chicago Los Angeles Radiator Furniture Buffalo Tulsa Seattle Cleveland San Francisco Portland a & we (ee cs / nn i, / THE IRON AGE October 2, Stocks You Can Depend on to Meet Every Steel Requirement Steel in every shape and size—stand- be done to meet your requirements ard and special grades—more than well within the time specified. 175,000 tons always in stock for There is a -Ryerson plant near immediate shipment. you. There is another near your No matter what your require- branch or job. This permits distant ment — as to special product or as well as local buying to the best emergency delivery—you can call advantage. Order from the plant on Ryerson with reasonable assur- nearest you. Immediate shipment is ance that everything possible will assured. \ few of the 1001 items in stock for immediate shipment Bars Refined Iron Boiler Tubes Alloy Steel Structurals Turned Ground and and Fittings Tool Steel Rails Polishing Shafting Welding Rod Concrete Reinforcing Plates Screw Stock Forging Bar Firmtread Plates Sheets, Blk. & Galv. Strip Steel Babbitt Metal Small Tools Sheets, Full Finished Rivets and Bolts Allegheny Metal Machinery, etc. Write for the Ryerson Journal and Stock List—the “Key” to Immediate Steel JoSEPH T. RYERSON & Son wc. Plants: Chicago, Milwaukee, St. Louis, Cincinnati, Detroit, Cleveland, Buffalo, Boston, Philadelphia, Jersey City Representation in: Minneapolis, Rockford, Kansas City, Tulsa, Houston, Dallas, Newark, New York, Denver, Los Angeles, San Francisco RYERSON Py & Ee tt s>ER VIC E a W. W. Macon, Editor . I. Finptey, Editor Emeritus + L. LacHer, Managing Editor CC. BE. Wricut, News Editor E. F. Cone 8S. G. Koon R. E, MILLER G. 8S. Herrick F. L. PRENTISS Cleveland R. A. Fiske Chicago T. H. GERKEN Pittsburgh BURNHAM FINNEY Detroit L. W. MOFFETT Washington GERARD FRAZAR Boaton R. G. McIntTosH Cincinnati InON AGE PUBLISHING Co. 239 West 39th Street, New York, N. Y. Cable Address: ‘‘Ironage, N. Y."’ F. J. Frank, Prestdent G. H. Grirritns, Secretary ©. 8. Baur, General Advertising Manager Division of UNITED BUSINESS PUBLISHERS, INC New York, N. Y. District Offices: Cuicaco, Otis Building PitTspuRGH, 1319 Park Building CLEVELAND, 1362 Hanna Building PHILADELPHIA, 1402 Widener Bldg Detroit, 7338 Woodward Avenue WASHINGTON, 536 Investment Bldg Cincinnati, 409 Traction Building BuFrraLo, 616 Ellicott Square Boston, Room 230. 80 Federal St San FrRANcisco, 381 Bush Street Copyright, 1930, by IRON AGE PUBLISHING Co. Member, Audit Bureau of Circulations Member, Associated Business Papers Published every Thursday. Sub- scription Price: United States and Possessions, Mexico, Cuba, $6.00: Canada, $8.50: foreign, $12.00 a year. Single Copy 25 cents. Contents for October 2, 1930 Metal Etching a Growing Art 905 Future of the Small Manufacturer 908 Management of a Small Plant 909 Quenching and Tempering Steel Castings 914 Annealing and Galvanizing Strip 918 Stools for Ingot Molds 920 Reclaiming Oil from Turnings 922 Machine Shop Accounting 925 Cold Rolling Machine Parts 928 Hardness Tables 932 Dr. Haney’s Page 937 New Equipment Editorials Markets and News Personals and Obituaries Business as Others See It oe ~ The Spotlight Is on These Two > Y men and by mail we call every week on thousands of manufacturers of metal products. We find that right now the two burning questions in the industry are: 1. When will business get better? 2. How can we cut our operating costs? Mark how well THE IRON AGE answers them. The market reports tell who is buying, and how much. Dr. Haney studies statistics and tells us what they show for the future. THE IRON AGE gives you all the worth while trade statistics, so that you can do your own prognosticat- ing if you care to. Our editorials discuss trade ten dencies and interpret their significance. The entire IRON AGE is an answer to the questions. The description of newly developed material or equip- ment (in the advertising or editorial pages) reports on production methods, a waste of elimination campaign, or a wage incentive system, or a production control plan—any one may mean a saving to you of hundreds of dollars, even more.—A. H. D., Reader Service De- partment. 42 THE IRON AGE October 2, 1930 NOTHING ROLLS LIKE A BALL More records broken with New Departures The Globe Tapping Machine Company has just completed this special machine, of its own design, which drills 4 holes and taps 3 in an automobile part, at the rate of 25 pieces per minute. Spindles are rigid, sensitive, permanently accurate—free rolling on New Departure Bali Bearings. But all the attention was not lavished entirely on the more important parts, for New Departures are used all through the mechanism. It is a care-free machine ... one capable of many years’ performance with the least possible amount of trouble and upkeep expense. That is an outstanding characteristic of New Departure-equip- ped machinery. The New |Departure Mfg. Co., Bristol, Conn. . This Etching of steel and non-fer- reus metals has developed into highly specialized industry which produces artistic results by a process resembling the engrav- er’s art. Bronze bulletin boards, elevator door panels and other decorative architectural effects achieved in larger areas than have hitherto been called for. Page 905. *« The small plant is not out of the running, says the president of the Sun Tube Corporation, Hillside, N. J., which produces an annual volume worth $750,000 from a floor space of 7500 sq. ft. President Lynch declares that a small plant scientifically organ- ized has the necessary essentials for competition with units of any size.—Page 908. By quenching and tempering, the best properties of either plain carbon or alloy steel cast- ings can best be brought out. Author makes plea for such treatment, basing his argument on a series of tests, showing properties as cast, after anneal- ing and after quenching and tem- pering.—Page 914. Chicago strip steel plant con- tains’ interesting installation, which anneals, cools, pickles, washes and galvanizes the strip continuously, automatically and at a high rate of speed.—Page 918, * Remarkable savings are _ re- ported to have been made from the practice of making stools for ingot molds, used in pouring of large ingots, of alloy gray iron or alloy cast steel, proving that ingot mold stools are of nearly the same importance as regards economy and production as the mold itself.—Page 920. ¥ ¥ : ISSUE IL In a new patented process put into operation at the Gambrinus plant of the Timken Roller Bear- ing Co. at Canton, Ohio, 6000 gal. of cutting oil is recovered daily from 120 tons of steel turnings. —Page 922. By means of mechanical tabu- lation many of the original shop records, such as_ time cards, requisi- tions, etc., may be made to do double and triple duty in the machine shop. Many copying operations also may be elim- inated, and the old payroll book may be discontinued. cards, clock-in-an-out Page 925. Despite the business depres- sion, a maker of collapsible tubes plant 60 per cent ahead of last year. How ? does it do this? has been running its By a somewhat unusual sales policy, by develop- ment of competition between ap- paratus units, by incentives to indirect labor and other factors. It has only 10 customers and a “waiting list.” Read “Squeezing Gold Out of Tin.”—Page 909. + That cold rolling the surface of machine parts raises_ the fatigue or endurance limit about 15 per cent is the conclusion from the results of torsion and bending fatigue tests on alloy steel at the