The Iron Age 1905-07-20: Vol 76 Iss 3

Vol. 76: No. 3. Reading Matter Contents...... page Alphabetical Index to Advertisers ‘‘ 183 Classified List of Advertisers.... “‘ 175 Advertising and Subscription Rates ‘‘ 182 FORSTER PULLEY WORKS, Cuba, N. Y. The American Mfg. Co. Ropes and Twines 65 Wall Street, New York Bristol’s Patent Steel Belt Lacing. SAVES GreatestStrength To ruusump vows «with Least Metal Send for Circulars and Free Samples. THE BRISTOL CO., Waterbury, Conn, SAMSON SPOT CORD Also Linen and Italian Hemp Sash Cord. SAMSON CORDAGE WORKS, Boston, Mass. TURNBUCKLES. 11 Broadway, York. and iron Con "-" Cloveland, 0, 465 to 471 Kent Ave . Brooklyn, E.D., N.Y. BASIC PIG. uilding, Phila. PILLING & GRANE, fusivnynstwree *“ APOLLO BEST BLOOM” Galvanized Sheets are perfect everywhere and prove it at the bend. ‘ See AMERICAN SHEET & TIN PLATE COMPANY’S Ad on Page 25. (Water and Rail Delivery) Owners and Sole Manufacturers, $58 00 a Year, nego Postaga =< Copies, 15 Cen’ 22 laeinehdaes are preferred by all boys. The U. M. C. Co. has spent years edu cating the boys to call for ‘The U Kind” (Trade Mark). U. M.C. advertising and U. M. C. quality insures quick sales, keeps the goods sold and brings the buyer back for more. Dealers—Don't neglect to carry a full line of Gi U. M. C. 22 Cartridges. The Union Metallic Cartridge Company, BRIDGEPORT. CONN. Agency, 313 Broadway. New York City. Depot, 86-88 First St., San Francisco, Cala. wet \ a — —_ | 3 ) x i Vy \ Ay CAHALL BOILERS # Capewell Horse Nails are used on the Race Tracks of the World THE CAPEWELL Horse NAIL Co., Hartford, Conn., U. S.A. Gentlemen:—I\ always use the Capewell, for I consider it not only the best driving nail, but when you send a horse to the post you can bet that he will bring all his shoes home with him. Very truly yours, FRANK SNELL, International Horseshoer and Plater, Hoppegarten, Germany. “sy The Capewell Horse Nail Co. “conn* JENKINS BROS. VALVES are well designed, and have full opening. They are thoroughly inter- changeable, so that any worn or broken part can be readily renewed. All genuine bear Trade Mark as shown in the cut, and are guaranteed. Write for booklet. JENKINS BROS., New York, Boston, Philadelphia, Chicago, London. THE AMERICAN TUBE & STAMPING COMP “Seto” Gad Ried See rawing i Brmpcerort, Conn. PAGE MAGNOLIA METAL. Best Anti-Friction Metal for all Machinery Bearings. Fac- Simile of a 4 Beware imitations. ~ MAGNOLIA METAL CO., 113-115 Bank Street, NEW YORK. San Francisco, Muntreal, Boston and Pittshurg We manufacture al) grades of Babbitt Metals # at Chicago, Fisher Bidg. competitive prices. 2 THE IRON AGE : + tnt te Sheet and Roll Brass COPPER WIR ale PRINTERS’ BRASS, JEWELERS’ METAL, GERMAN GERM AN SHEET ae — GILDING METAL, COPPER RIVETS ROD Pins, Brass Butt Hinges, Jack Chain, Kero- “QUEEN'S RUN" SILVER WIRE ~ ane MOURN NASGLIG| |LOW BRASS. SHEET BRONZE.|# MURRAY ST., NEW YORK. 1 ey ae : be , aed WAY 2S53) SEAMLESS BRASS AND COPPER} “1s carn or caticaco. Cele SSC NA ee we) | TUBING. BRAZED BRASS AND MANUFACTURERS OF aul THE PLUME & ATWOOD Mrs, to, BRASS ROLLING MILL : | FACTORIES : THOMASTON, CONN. WATERBURY, CONN. BRONZE TUBING. ::::s::33 Are as good Tin Plates RI ig SPIE EN SCOVILL MFG. 60., Two | siccs ccc ||WATERBURY BRASS C0.) sacse" . making in our own ® 5 Things mills. This must be 1199 John St., New York. Providence, R. I. eae py ——" so because the larg- ods Rods, Bolts and =e lis, ’ ’ Even | Sore | pigepnt. Dealt Broa &| fens ce™ Money customers. Try us Metal Fi Special Brass Goods to Order. ren seunehntinks, ‘Gaem. WATERBURY, CONN. FOLLANSBEE : ; ; ae Cannot oinieatat Automobile Castings a Specialty. | § wew york. CHICAGO, = BOSTON. B ' COMPANY, High Tensile Strength. uy MO OENNA. || Bronze and Aluminum Alloys. Henry Souther Engineering Co, HARTFORD, CONN. Write Us. Consulting Chemniete, Metallurgists and a Laboratory; Expert lete Ph soutee ia See ate and Patent Cases, Matthiessen & Hegeler Zinc Co., SM ELTERS OF | SPELTER Arthur T. Rutter & Co. I. Rutter & Co. AND MANUFACTURERS OF 256 Broadway SHEET ZINC AND SULPHURIC ACID. ? Special Sizes of Zinc cut to order. Rolled Battery Plates. NEW YORA. "gaan ~ sat sheep Ler Oud loan Small tubing in Brass, Copper, Stove and Washboard Blanks. Steel, Aluminum, German Silver, &c. Sheet Brass, Copper and Ger- ZINCS FOR LECLANCHE BATTERY. man Silver. Copper, Brass and German Silver Wire. Brazed and rs ACEO cosa ous THE BRIDGEPORT BRASS CO., BRIDGEPORT, CONN. ME UAE UTO TT aren and pees ane egemae y+) og 17 N. 7th St., Philadelphia. Aleminem « CASTINGS) Brass (SHEET = i = Pa ee ww. G. ROWELL OOD NOENO” FINISHES idgeport, Conn. AND rT JIBING HENDRICKS BROTHERS Copper | WIRE Lamp Geods of all Kinda, Belleville Copper Rolling Wlilis, | SnAes ano copren eoocs Srasicrs’ Bolt ax and Sheathing ~ GEORGE KROUSE | COPPER, HEAVY CASTINGS COR ENEN WV imarcnutuenin Sy Ys." | Brass and Composition Castings Ingot Copper, ee ae ae ae — “4 Antimony, etc. piresing Mord Composition ond 160 to 164 Morgan Street, JERSEY CITY, N, J THE IRON AGE New York, Thursday, July 20, 1905. The Ashland Slag Cement Plant. Built by Ashland Iron & Mining Company. In an article in The Iron Age May 18, 1905, an ac- count was given of the slag cement industry, with the re- quirements demanded by the United States Government for its use. Slag cement has recently become a subject of great interest to blast furnaces throughout the United States on account of the increased cost of the disposal of the refuse slag. Many of the more progressive fur- naces have installed slag cement works in connection with their furnaces to convert what is becoming a serious expense into a profit. Last summer the Ashland Iron & Mining Company, Ashland, Ky., delegated its superintendent, E. B. Hull, to look into the manufacture of slag cement, and after visiting many of the most important slag cement plants ing containing the dryers and cement mills, plan and ele- vation of which are shown in Fig. 2, and is fed through a screen into an elevator hopper. It is then elevated by a bueket conveyor and carried by a screw conveyor to the three Ruggles-Coles dryers, and any surplus carried over is returned to the elevator pit by another screw con- veyor underneath the dryers. After passing through the dryers it is conveyed and elevated to a dry slag steel bin, holding about one day’s supply. The lime, which is burned on the ground by a Broomell patent kiln and hydrated at the kiln, is delivered to the plant and fed into a screw conveyor at the west end of the building. From there it is conveyed and elevated by a bucket conveyor to a bin adjoining the dry slag bin. The slag and hydrated lime are then fed by an automatic device, which regulates the proportions of each, into an Allis-Chalmers tube mill, which does the mixing and pre- liminary grinding. From the first tube mill it is fed to Fig. 1.—View of the Ruggles-Coles Dryers in the Slag Cement Plant of the Ashland Iron & Mining Company, Ashland, Ky. he recommended that the company engage in its manu- facture. A contract was signed with C. J. Curtin, 39 Cortlandt street, New York, last November, for the in- stallation of a plant with a capacity of 500 barrels of slag cement per day. Mr. Curtin associated with him the Ruggles-Coles Engineering Company, New York, and the plans for the plant at Ashland were prepared and work begun about December 1, but owing to the very severe winter it was somewhat delayed and was not ready for operation until about a month ago. As the Ashland Iron & Mining Company has a large surplus of blast furnace gas which has been going to waste it was decided to utilize this gas under boilers and generate electric current for operating the mill. The boilers are installed at the furnace, and adjoining the furnace is a new engine and generator house, containing a Corliss engine built by the Atlas Engine Company, In- dianapolis, Ind., and a generator furnished by the Stanley Electric Company, Pittsfield, Mass. The same company also supplied all of the motors. In the operation of the cement plant the slag is drawn from the furnace and is run into a concrete pit large enough to granulate all the slag from the No. 2 furnace. It is taken from the pit by a Brown locomotive crane, which carries it to the cement plant, about 200 feet dis- tant. The slag is deposited at the west end of the build- three other tube mills and delivered from them as fin- ished cement. It is then elevated and conveyed through a bridge to. the stockhouse, shown in plan and sectional elevation in Fig. 3, which is placed 45 feet distant from the mill building. Each of the tube mills is direct driven by a 75 horse-power motor, these motors being located in a separate room from the mills. Two of the dryers are driven by a 15 horse-power motor and the other one by a 30 horse-power motor, which also operates elevators, con- veyors and countershafting. There is one 15 horse-power and one 20 horse-power motor for driving other counter- shafts, elevators, &c., and the shaft running to the stock- house. Between the mill building and the stockhouse is a steel truss bridge, which carries a countershaft and a screw conveyor. The stockhouse is of an original design, being made entirely of concrete, except the roof, and is divided into four bins, each capable of holding 2500 bar- rels of cement. The cement from these bins is drawn off into a: screw conveyor, delivered to an elevator and thence to a cross conveyor, from which it is bagged. The spouts from this conveyor each hold a trifle less than one bag of cement. The bag is set on a platform and raised by a foot lever so that the mouth surrounds the spout. A slide is then pulled and all the cement in the vertical spout is immediately delivered to the bag. The last 10 ey ste ers ie a 142 THE IRON AGE July 20, 1905 or 15 pounds is delivered by the conveyor at a speed The transmission machinery, elevators and conveyors easily controlled. were all furnished by the Webster Mfg. Company, Chi- All the elevators have steel housing and there is no cago, Ill. The buildings are made of concrete blocks, com- RZ MLL. he Ze Z f ) | move M FOP] HYCRATEL LIME or moron | 07 vs) be or fe ee own MOTOR 4 k T _ le ne i=. nVEVOW pcESEM Z == } a=eBtpeme5 oa: Ea Tete ate tae seer I WZ HHA ee = 3 aie LI : 4 ~ - |! | Z 2 es = = cm | y= 4 ow wv “ su Y “ a 'Oo = Ai>+> TF 8 = oe ,wo + © a) z = z “: “+Ox “4 3° 8 | } ie { Mor 182 { WITT DoT =o i - 1@¢2 Es my dl =} fL__\_ ,@ Sy) it — 3 . J} F—— OW Y se cndneenen hd ee =i A 4 iit I = G ' 1 4h I, ieee | : iB oO! 0 VAs WAIL hgh dda ddd a i or) Y ! < © Y orton 2S) y i oz Zi i 5: Y it = o! 7 g ! 2! Vj A \ { Vy Yi AI Eye Like kids Me A AMO hed CTIA OO i la ee ee ee ee i ee ee se Le ee es i ee i Y) 50 i Mh i y Rs i yj i y y ‘ ESS WMS. WZ Lida dadadadhadddddde WI44 endhapeb el on ahd niriat 36'6°-- - -—-—- ---- 4 a z 7 Z y Z iY 4% Y) Z 4 secaonenao esos s! SEE | OOS | NN OOS SSS — A OG Ne aI SO a pare AST WKoe* PI Pe ae POTTS is = i Ys > kha eee Sonim inn WP Sy LLL | I WZ, | eg ddd dhddddded - G-9 3NIT NO NOILO38 > Ladd ddd Ze. wae Z SSS SSSA SSS SSIS SSS SANS SSSSSSG SSIS Cilillbedll of: (seeeseeee SECTION ON LINE A-B Fig. 3.—Plan and Elevations of the Stockhouse. wood work in the entire mill building or stockhouse ex- posed of 1 part cement, 2 of sand and 5 of crushed cept window frames and sashes. The roofs are of steel slag, and were made. with a Noyes F. Palmer block ma- truss construction, built by the Riter-Conley Mfg. Com- chine, making very handsome and substantial buildings. pany, Pittsburgh, Pa., on which is placed a slate roof. All the cement used in the construction of this mill was July 20, 1905 slag cement made by the Stewart Iron Company, at Sharon, Pa. The slag from the Ashland furnaces is of exceptionally good quality, carrying almost perfect proportions to make a high grade cement. The preliminary tests of this mate- rial have shown a cement which will test 500 pounds in 7 days and 600 pounds in 28 days, and the boiling tests THE IRON AGE 143 thence through the exhaust fan and a short stack to the air. The material is fed through the front head into the space between the outer shell and the inside flue and is raised and dropped by flights set at an angle with the shell, extending the full length of it, as shown in the cross section, Fig. 5. The material is continuously dropped on the outside of the inner flue and is held there THE IRON AGE Fig. 4.—Plan and Side Elevation of One of the Ruggles-Coles Dryers, Showing Connection of Fan and Furnace. show absolutely no free lime or expansives of any kind. As the power is supplied by waste gases from the fur- nace, and as the coal for the dryers comes from the Ash- land Iron & Steel Mining Company’s own mines, the cost of production of the cement will be very low. Fig. 1 shows a view of the three Ruggles-Coles dryers and Fig. 4 a drawing showing the arrangement of one of "Fm IRON AGE Fig. 4.—Cress Sectional Elevation of a Dryer, Showing the Drive and Interior Disposition of Flights. them. Each dryer is built of %-inch steel throughout, is 70 inches external diameter and 30 feet long, having an internal flue open at both ends, extending nearly the full length of the dryer. The hot gases from the furnace pass through a stationary neck lined with fire brick into the inside flue, running the full length of the dryer, and re- turn back between the inside flue and outer shell, by flights extending the full length of it. As the ma- chines continue to revolve the material is dropped to the bottom of the shell and by the inclination of the dryers is delivered out at the rear end. Around the outside of each shell are riveted two rolled steel tires, which rest on roller bearings, and the machine is driven by gear and pinion, the driving shafts being direct connected ‘to alter- nating current motors. The tube mills are of the well known continuous type, 60 inches diameter, 22 feet long and lined throughout with silex lining about 3 inches thick. Bach mill contains about 10 tons of flint pebbles imported from Belgium. The ma- terial is fed automatically by a feeding device into the tube mills and is reduced by the grinding action of the falling pebbles as the machine revolves and is delivered out through the center bearing of the tube mill as finished cement. The material is not handled from the time it is fed to the dryers and lime conveyor until it is put Into bags at the stockhouse. The necessary labor is therefore very light and the plant is as nearly automatic as it is possible to make it. The mill will be in charge of Simon Beard, who was formerly with the Stewart Iron Company, at Sharon, Pa. The construction work was under the supervision of D. J. McCarty of Newark, N. J. Since the completing of this plant, C. J. Curtin, the en- gineer, and W. B. Ruggles, of the Ruggles Coles Engineer- ing Company, have formed the Curtin-Ruggles Company, with headquarters at 39 Cortlandt street, New York city, to engage in the designing and constructing of slag cement plants. ————_ 9+ @ The Crucible Steel Casting Company, Lansdowne, Pa., announces that it is now ready to manufacture crucible steel castings of every description. The plant is expected to supply a long felt want in the matter of small steel castings. The company is prepared to quote on special} steel mixtures, such as nickel, chrome, tungsten, manga- nese, &c. The officers are: J. N. M. Shimer, president; C. R. H. Cunningham, vice-president and treasurer, and H. Bloodsworth, secretary. 144 Mexican Monetary and Tariff Changes. A New Influx of Capital. DuRaNoo, Mexico, July 12, 1905.—The monetary sys- tem of Mexico has changed from a silver to a gold basis without the least disturbance of business interests; in- deed, the beneficial effect of the new order is already visible in increased confidence among all who have invest- ments in the country and also in a new influx of foreign capital—a movement which was temporarily suspended in the time of the low value of the peso in international markets. Exchange was normal and regular for several months prior to the actual placing of the Mexican dollar upon a fixed basis by law and this served to prepare the way and to make the transition easy. The foreign railway companies, which benefit greatly by the change, have taken heart and are beginning to push their extensions, long held in abeyance. New smelt- ers are being projected in which large amounts of United States capital will be invested. Durango has been se- lected as the site of one of these. Its establishment will be of great benefit to the mining interests of the State. While it cannot be said that any “boom” is visible in any partiular quarter as a direct consequence of the fiscal change, it may be regarded as certain that none but favorable results can follow the Government’s long de- ferred move in favor of sound money. Seme New Tariff Bates. Further action of the Government in matters of im- portance to foreign exporters are the abolition of the free zone and a revision of the tariff, edicts covering both sub- jects having recently been promulgated. The free zone embraced a strip of territory south of the border into which merchandise was permitted to enter at a very low rate of duty as a sort of compensation and encdurage- ment to the business interests of an at one time isolated district. The necessity for the maintenance of the con- ditions has disappeared with the building of railways. Tariff rates have been changed upon the following classes of products in which readers of The Jron Age are interested : Wire of copper, brass, bronze or white metal lined with any substance: 5 to 10 cents per gross kilo. Naked wire of copper, brass, bronze or white metal, not ex- «ceeding 2 mm. in diameter: 8 to 10 cents per gross kilo. Naked wire of copper, brass, bronze or white metal, exceed- ing 2 mm. in diameter: increased from 5 to 6 cents per gross kilo. Steel in bars of various shapes: old rate, 5 cents per gross kilo; new rate, $5.50 per 100 kilos gross. Iron or stcel wire, more than 1 mm. in diameter: old, 5 cents per gross kilo; new, $5.50 per 100 kilos gross. Iron or steel wire, 1 mm. or less in diameter: increased from 8 to 9 cents per gross kilo. Iron wire for fences: increased from 2 cents per gross kilo to $2.50 per 100 kilos gross. Iron hoops and clasps for fastening packages: increased from 1 cent per gross kilo to $2.50 per 100 kilos gross. Plows and their loose parts or repair pieces, sickles, scythes and other implements for agriculture and clearings; increased from $1.50 to $1.65 per 100 kilos gross. Iron or steel rails, when the weight of the linear meter ex- ceeds 10 kg.: new rate, 2 cents per gross kilo. lron or steel rails when the weight of the linear meter does not exceed 10 kg., and switches, turtles, ties, frogs, spikes and fish plates for laying rails: new rate, 1 vent per gross kilo. At present rails pay 1 cent per gross kilo when the linear meter weighs more than 12 kilos and are free when the linear meter does not weigh more than 12 kilos. Iron or steel girders, not having perforations nor special cut : increased from 2 to 3 cents per gross kilo. Girders and columns of iron or steel, when they have perfora- tions or a special cut, brackets, bed plates for columns, fish plates, braces with or without bolts and other unspecified pieces of iron or steel for building purposes: increased from 3 to 4 cents per gross kilo. Impure mineral oil: old rate, 3 cents per kilo net; new rate, $3.30 per 100 kilos net. Refined mineral oil, benzine, mineral wax and paraffin: in- creased from 8 to 9 cents per legal kilo. Leather belts and cables for machinery : increased from 50 to 55 cents per gross kilo. Belts of cow hair, felt for machinery: increased from 10 to 11 cents per gross kilo. Rallway Concessions and Construction, The Mexican Central Railway Company has let the contract for the construction of the extension of the Colima branch to the port of Manzanillo, work upon THE IRON AGE July 20, 1905 which was discontinued some two years ago. The same company is also actively pushing other construction work, The Jalisco & Michoacan Railway Company, which owns a State and Federal concession to construct a railway, 300 km. in length, from the city of Guadalajara to Lake Patzcuaro, in Michoacan, increased its capital from $1,- 500,000 to $10,000,000 at a recent meeting of the stock- holders. The company plans to begin construction at both ends simultaneously. William V. Bacus is the vice- president and J. N. Zermeno the manager of this com- pany. Indastrial Notes, The Kansas City, Mexico & Orient Railway Company recently placed an order with the American Car & Foun- dry Company for 400 box cars, 100 flat cars, 100 stock cars, two mail and baggage cars and a number of second and third class coaches and cabooses. The Cananea Consolidated Copper Company of Cana- nea, Sonora, has obtained a concession for the construc- tion of an extensive hydraulic power plant on the Aros River in the State named, the work to be begun within two years and completed within seven years of the date of the concession. gz. 3. D. ————_~+--e—___—. British Report on Iron Ore Deposits. The British Board of Trade has recently issued a volume of 300 pages which contains reports from the British consuls in various countries on the iron ore de- posits in their respective consular districts. The inquiry was undertaken in 1903 at the instance of the British Iron Ore Association. The points on which information was asked are the following: The deposits in the con- sular district, nearest shipping port and how far away the deposits ; cost of transport to port per ton; whether road, rail, or canal; character and cost of mining and loading, estimate of cost of mining (or quarrying) and loading in carts or trucks, per ton; any official analyses of ore; copies to be sent, or samples; proprietors rich or poor; will terms be reasonable or not; have deposits been worked; give quantities shipped for five years; any special obstacles to mining; any other special informa- tion respecting the ore supply or district. In connection with their reports the consuls sent to London samples of ore, with maps, pamphlets and mis- cellaneous information which are now on deposit with the Commercial Intelligence Branch of the Board of Trade. It need scarcely be said that not being gathered by ex- perts much of the information contained in the reports is of questionable value. It would be impossible to sum- marize the contents of-the volume in any brief generaliza- tion, the report going with considerable detail into loca- tions of ore deposits and their accessibility to English iron and steel manufacturers. One deduction might be made, and that is that the prospect seems to be that Great Britain will have to depend for her supply of iron ore on fields more distant than those upon which that country is drawing now. —_——_~ 4--e___ The Labor Bureau Secretaries’ League has issued a little pamphlet, entitled “ Method of Conducting a Labor Bureau for Employers’ Associations.” The text is a re port read by the late Frank A. Wilson, secretary of the Boston Labor Bureau, at a meeting of the secretaries held in New York in January last and adopted by the league. Herman S. Hastings, secretary of the Worcester Labor Bureau, Worcester, Mass., is secretary of the league. The Hydro-Electric Power Commission is the name selected for the body appointed by the Ontario Govern- ment to inquire into the whole question of electrical pro- duction and development in the province. The commis- sion is composed of Adam Beck, London, Ont., chair- man; George Pattinson, Preston, Ont., and P. W. Bilis, Toronto, Ont. Cecil B. Smith has been appointed engi- neer to the commission. A secretary is yet to be ap- pointed. July 20, 1905 A Newton Special Duplex Milling Machine. The Newton Machine Tool Works, Philadelphia, Pa.., have recently designed and built for the Pittsburg Re- duction Company; a special duplex milling machine, illus- trated in Fig. 1. This machine is particularly intended for milling the surface of aluminum billets to remove the scale before the billet is rolled. The cutter heads are 30 inches in diameter over the tools, and each head carries 24 special shaped tools of the Fig. 1—A Special Milling Machine, THE IRON AGE 145 Built for the Pittsburg Reduction Company by the J will be milled at the first setting and the billets will then be reversed to finish the other side. This is believed to be the only machine adapted to this class of work and running at such a high cutting speed and feed. ee Steam Turbine Tests.—The Westinghouse Machine Company, Pittsburgh, Pa., has recently made public a report on efficiency tests of a 400-kw. steam turbine built for Joseph Benn & Sons, Providence, R. I. These tests THe IRON Age Newton Machine Tool Works form indicated in Fig. 2. The spindles are 5 inches in diameter and are driven through spur gearing by a 25 horse-power Crocker-Wheeler motor. The gears are pro- portioned so as to give the tools a peripheral cutting speed of 500 feet a minute. The carriage is 24 inches wide and 8 feet long over all and has an extreme movement of 7 feet. Through friction disks variable automatic feed from 6 inches to 36 inches per minute may be imparted to the carriage. THE IRON AGE Fig. 2.—The Special Form of Tool Used in the Cutter Heads. The carriage also has a power quick return and hand ad- justment. The feed and quick return movements may be alternately engaged or thrown out of action by a clutch manipulated by the lever handle seen in the view. This lever is also controlled automatically by a rod carrying adjustable stops, making it possible to vary the length of the carriage travel. It is the intention of the Pittsburg Reduction Company to place a fixture in the center of the table extending its entire length. This fixture will be adapted to clamp two rows of billets, one on either side. One side of each row were made by F. P. Sheldon & Co., Providence, R. I., to determine whether or not the guaranteed steam consump- tion at various loads was obtained. The equipment was a turbo-generator set consisting of a 600 nominal horse- power Westinghouse-Parsons steam turbine direct con- nected to a 400-kw. polyphase generator. With steam at 150 pounds pressure and 100 degrees F. superheat and a vacuum of 28 inches the steam consumption per brake horse-power at full load was 12.48 pounds, or nearly 11 per cent. better than the guarantee. With dry, saturated steam and the same conditions of pressure and vacuum the full load consumption was 13.89 pounds per brake horse-power, this being over 10 per cent. more than guar- anteed. There was even better economy at one-quarter overload, 12.41 pounds being the consumption with super- heated steam. The turbine showed a remarkable over- load capacity and only a 6 per cent. decrease in economy at 108 per cent. overload. —- > Oo The American Street Railway Manufacturers’ Asso- ciation, the organization formed at Saratoga in 19038 to take care of the exhibits at the conventions of the Ameri- can Street Railway Association, announces its plans for the convention at Philadelphia, September 25-30, The south pavilion of the Philadelphia Museum and an adjoining building of larger area have been selected as exhibition halls. They are located on Thirty-fourth street, near South street, within 15 minutes’ walk of the City Hall, and con- tain 75,000 square feet of floor space. Ample room is pro- vided also for outdoor exhibits, and there are two rail- road tracks, one 600 feet and the other 400 feet long. The membership fee of the American Street Railway Manufac- turers’ Association secures the privilege of reserving space. Daniel M. Brady, 95 Liberty street, New York, is chair- man, and George Keegan, 13-21 Park Row, New York, secretary, of the executive committee which has the ar- rangements in charge. 146 THE IRON AGE Steam Shovels on the Mesaba. DvuLuTH, MINN., July 17, 1905.~—The number of steam shovels employed in stripping Mesaba range mines at the present time is the greatest in the history of the range. There are not less than 33 of them, nearly all of large size and great power. The average work of these shovels per 10 hours is 3000 tons each and they will employ not far from 75 men for every machine. Some of these shovels are worked day and night, so that the amount of earth being moved is something enormous. Among the contractors the Drake & Stratton Company has the largest number, 10 shovels. This company is working at several mines of the Oliver Iron Mining Company, notably Morris and Fayal. It has also Leonard stripping and that of Stevenson, both independent mines. Winston Brothers, who are at work in Mahoning pit, have four shovels busy. Porter Brothers, at Burt mine, have two; Wallace Contracting Company, at Forest mine, two; N. O. Werner, at Higgins, two, and Butler Brothers, at Lee tonia, one, and at Larue mine, two. In addition to these the Biwabik Mining Company operates two shovels in stripping and the Oliver Iron Mining Company operates its own shovels in the Mountain Iron, Stephens and Hull, and has seven shovels busy there. In addition to all these, which are engaged in development operations alone, there are some 36 shovels occupied in mining at the open pit properties of the range. The great majority of these are at Stevenson, Burt, Mahoning, Mountain, Fayal, Bi- wabik and Stephens, with others at Leetonia, Leonard, Kinney, Hawkins, Larue, Higgins, Oliver and other mines. Added to all these are other shovels loading stock piles at underground mines of the range. There are some 12 to 15 of these, so that more than 80 steam shovels are employed upon the range. These vary in size from ma- chines of 40 to 50 tons to those leviathans of 110 tons each, such as are in use at Stevenson and other mines of the district. Eighty shovels working busily all the time would make quite a hole in the Panama Canal cuttings. A Successful Exploration, E. J. Longyear, who is exploring the northwest quar- ter of the northwest quarter of section 27-58-20 for the Onondaga Iron Company, says that he is finding more good ore with the five or six drills he is working there than with all the other 40 or more that he has employed on Mesaba range explorations. The Onondaga is a local company, whose stockholders have been wonderfully suc- cessful in ore before and who secured the fee to this land some years ago. It is probable that 10,000,000 to 12,000,- 000 tons will be shown on this 40-acre tract. Not very much ore is showing up on this range just now and most of what is found is not of the best. The Jones & Laughlin Operations. The Jones & Laughlin Steel Company, which owns mines at Ishpeming and on the Mesaba range, is now using ore at the rate of about 2,000,000 tons a year, More of this amount is coming from its own mines than in any previous year, but it is still receiving ore on long time contracts from mines both on the Mesaba and old ranges. Of its own mines it has been expected that Leetonia would supply a larger tonnage this year than any other prop- erty, 400,000 tons, and that Lincoln will make an output of nearly 300,000. This mine is a large one, contains excellent ore and could be mjned much more heavily, but it is not desired to push it. Lake Angeline, at Ishpeming, is not to mine quite 100,000 tons, as its supplies are to be conserved. For some years practically the whole product of the Oliver Iron Mining Company’s Duluth mine, Me- saba range, has gone to this company, adding 150,000 tons to its supplies. Next year its own Grant will be a large pro- ducer of excellent non-Bessemer ore and probably at low cost. At 400,000 tons a year Leetonia is good for at least 25 years, while complete exploration of the ore body may show a much longer life. Lincoln at the present rate is good for a still more extensive future and Grant has ore enough to warrant a very large annual shipment for 30 to 40 years. Lake Angeline is about done. The company has a large tonnage of new ore in the Cascade district especially adapted for mixing with its July 20, 1905 Mesaba tonnages. The company has been exploring in the Negaunee district for two years past with commend- able persistence, but without very large results, so far as report goes. Just now drills are starting for this com- pany in the Swanzey district, near Marquette, where work by the Cleveland Cliffs and others during the past year and longer has probably shown results. The loca- tion of this new work is near Princeton and Austin mines, and there will be many holes drilled if the first work proves encouraging. At Hennepin mine, Gogebic range, the company is now exploring, having unwatered and cleaned out the property. N. B. Roscorla, a well-known mining man of the old ranges, has been put in charge, and an aggressive campaign is to be undertaken at once in the hope of making a large mine out of the property. New Work on the Vermilion Range. Some diamond drilling is beginning on the Vermilion range in fulfillment of the prediction recently made in this correspondence as to increased activity there. The Oliver Iron Mining Company has begun work on section 5-62-14, where there are excellent indications and some ore. At Robinson Lake, a township further east, the old Bisbee property is under exploration. Still further east the- White Iron Lake Iron Company has resumed after a long cessation. Work is to start soon on Pine Island, north of the Soudan mines, and there are deals in progress for other drill work along the range. The resumption of work in such a costly region is a pretty good indication of the strength of the present inquiry for iron. DE. W. ———~-e—____ ; The shipments of rails from Great Britain in May amounted to 48,601 tons, as compared with 65,578 tons in May, 1904, and 71,584 tons in May, 1903. The total of export shipments for this year to May 31 was 219,377 tons, as compared with 206,902 tons in the corresponding period of 1904 and 281,252 tons up to May 31 in 1903. The principal item in this year’s exports is 87,256 tons to British India. Exports to British South Africa have fallen off very considerably, having been 6664 tons for the first five months this year and 28,319 tons and 62,560 tons in the corresponding period of 1904 and 1908 respectively. : To Canada the rail exports for the first five months of 1905 were 6025 tons. In the corresponding period of 1904 and 1903 they were 12,875 and 24,702 tons respec- tively. The first commercially operated single phase railway is in the Tyrol, near Innsbruck. Each motor car has four 40 horse-power motors connected in two groups in parallel and operated at a frequency of 42 cycles per second. The line is 12 miles long, and contains a number of long and stiff grades. Current is transmitted to substations at 10,000 volts, and is reduced to 2500 volts, at which it is fed directly into the trolley wires. It is estimated that the energy consumption, measured at the initial switch boards so as to include all line and other losses, is about 70 watt-hours per ton-kilometer. Mechanical power was calculated from measurements of train resistance to be 48 watt-hours per ton-kilometer. This makes the effi- ciency of the system about 68 per cent. To compete with the carbun filament incandescent lamp the Siemens & Halske Company has produced experimentally a lamp with a tantalum filament of a metal tougher and harder than steel. A commercial form of the lamp proves to require only 1.7 watts per candle- power, as compared with about double that amount in the regular type. To get a sufficient resistance for 110 volts it is necessary to make use of a filament about 30 inches in length. This is wound back and forth over supports, so that the size of the bulb is only slightly larger than with the carbon form. The life of the lamp appears to vary between 400 and 600 hours, as compared with 1000 hours, the average life of the present lamp. The light is very white. The high economy of the new lamp makes it apparent that nothing but first cost im- pedes its large commercial usefulness, T Pr a ee. a. a. July 20, 1905 The Wellman-Seaver-Morgan Air Compressor. The cylinder and valve arrangement adopted by the Wellman-Seaver-Morgan Company, Cleveland, Ohio, for high speed air compressors is shown in Fig. 1. These drawings show one cylinder of a compressor having 2 capacity of 4000 cubic feet of free air per minute com- pressed to 75 pounds gauge pressure. There are two air cylinders, the intake cylinder being 40 x 60 inches and the high pressure cylinder 25144 x 60 inches. Both are water jacketed. It was the aim in this design to completely separate the positive closing of the discharge from its automatic opening. This is accomplished by dividing the discharge valve into two parts, one of which is positive and a part of the mechanival inlet valve S, which is driven by a heavy eccentric. The discharge valve D is automatic, being controlled by a differential piston, P, operated by air pressure. The inlet valve S also positively controls the opening to the discharge valve D, the opening being timed to take place near the beginning of the com- pression stroke. : The events of the stroke are shown on the theoretical indicator card, Fig. 2. At a the valve S begins to open the inlet passage to the cylinder, air being drawn into the cylinder up to the end of the stroke at b, when the inlet is closed by the return of the valve. As the piston moves toward the right the valve S continues to rotate toward the left. At the point marked c on the diagram the cylinder is brought in connection with the passage leading to the discharge valve D. The discharge valve ror eS , | ts : od _ ! Elevation Section E-E THE IRON AGE 147 speed. There are no springs, hooks or complicated de- vices, and all parts, with the exception of the valves, are outside the cylinder. If water accumulates in the cylin- ders or operating pot the valve D lifts from its seat to relieve the excessive pressure. The inlet area of the compressor is proportioned so that the loss of pressure in the cylinder at the end of the inlet stroke is less than 2 ounces per square inch. This design also reduces the clearance to less than 1 per cent., Fig. 2.—A Theoretical Card Showing the Events in the Air Cylinder. and the weight of air discharged per stroke is over 92 per cent. of the weight corresponding to the piston dis- placement. ——- -— < O:— The assessed valuation of mines of Ishpeming, Mich., has been fixed for the year as follows: Oliver Iron Min- ing Company, this including the Lake Superior and Hart- ford, $1,709,000; Cleveland Cliffs Iron Company group at Ishpeming, $2,212,200; Lake Angeline, $845,000; East New York, $30,500; total, $4,796,700. Negaunee valua- tions are a total of $3,000,000, of which Negaunee of raf Yi = al Section A-A rrr , Fig. 1.—Details and Sections of the Air Cylinder of the Wellman-Seaver-Morgan Compressor. does not open until a point, d, is reached, the opening pressure being made a little less than the discharge pres- sure by the proportions of the differential piston P, which controls valve D. This arrangement overcomes any tendency of the air pressure in the cylinder to exceed the discharge pressure. The outlet valve D remains open during the entire discharge period and only commences to close on the return stroke of the main piston. In other words, the valve D closes during the period represented by the line e a b on the diagram. The time required for the opening and closing of the discharge vaive is thus extended from about one-quarter of the stroke, with the usual poppet valve, to about one and one-quarter strokes with the improved valve. This feature permits high Cleveland Cliffs Company leads with $1,025,000; Regent group of the Oliver Iron Mining Company, $800,000; Cambria and Mary Charlotte, $285,000 each. In a great irrigation project involving an ultimate expenditure of some $25,000,000, recently authorized by the Secretary of State for India, an area of about 6250 square miles is to be served, though but a fraction of this area is to be reached for the present. In the total area served it is estimated that about 3000 square miles will be actually under irrigation. The water will be taken from the Jhelum River, which furnishes at the head works proposed an unappropriated volume of 6000 to 7000 cubic feet per second. ee — 148 THE IRON AGE July 20, 1905 Economies of Mechanical Draft. Concerning mechanical draft the following statements are made in “Chemical Technology” by Mills and Rowan: “The principles of what is now becoming well known under the name of ‘forced combustion’ have been re- peatedly advocated during past years by those who have devoted thought and study to the subject. The position assumed by them—which is now finding favor among engineers—has been, in brief, that the air supply re- quired for combustion in furnaces can be more economic- ally furnished by mechanical power than by the action of chimneys and that the mechanical method has other advantages which enable it to be preferred to the one which is older, but more imperfect. One of these ad- vantages is the higher temperature of combustion, which is equivalent, with a boiler of good design, to an in- creased evaporative power of the boiler or to increased evaporative effect for the fuel. Another advantage, which has not been fully realized in any plan as yet in- troduced in practical work, is that the rate of travel and escape of flame and hot products of combustion is under control. It is thus possible to cool them more completely than can be done when chimney draft is used, and this means a saving of heat which would otherwise be uselessly dissipated. Mechanical or artificial draft thus presents to us a method of economically furnishing the air supply to furnaces and producing a more efficient combustion temperature, while it also renders possible further economies due to retarding the movement and escape of hot gases and to preliminary heating of the air supply by waste heat or otherwise.” ———_-+- oe _—__—__ The Pittsburgh Rivet Company.—This company has purchased and is operating the plant formerly owned by the Eclipse Mfg. Company, located on the Baltimore & Ohio’s Junction Railroad, Pittsburgh. The plant has been remodeled and fitted with modern machinery and equipment for the manufacture of rivets, bolts, upset rods, forgings, drift bolts and mine car hitchings. The main building is 100 x 200 feet and contains three auto- matic rivet machines, three hand feed rivet machines, two forging machines, a heavy pointing machine, one Bradley and one chain hammer; also screw cutting ma- chines, drill presses, lathes, shapers and other machinery used in this line of work. Each automatic riveting ma- chine is fed from a 32-foot improved continuous furnace in which rods up to 30 feet in length are heated. The output of rivets is from 20 to 50 tons a day in sizes from 1% inch by % inch up to 3% inches in diameter and cut to any length. Motive power is furnished by a 150 horse- power Miller double cylinder gas engine. Natural gas is used for fuel throughout the plant. W. C. Reitz is president; F. W. McLean, vice-president and secretary ; J. H. Reitz, treasurer, and W. F. Dowerman. manager. — <> @- — — A Thurston Memorial.—Students of Sibley College, Cornell University, Ithaca, N. Y., have ordered designs made for a $1500 bronze tablet which they will erect in memory of the late Dr. R. H. Thurston, formerly Director of Sibley. The tablet is being designed by Prof. H. 8S. Gutsall of the College of Architecture and will be erected in a stone niche of the new Thurston Hall of Engineer- ing, now in process of construction. ————— oe _______ A second steamship is about to be placed upon Lake Titicaca, in Peru, the highest navigated water on the globe, being 13,000 feet above sea level. The new vessel has a length of 220 feet, a beam of 30 feet and a depth of 14 feet, and is designed to carry about 550 tons dead weight, with accommodations for 24 passengers. She will be propelled by twin screw engines, developing an aggre- gate of 1000 horse-power and giving her a speed of 12 knots. The ship, built by the Earle Shipbuilding Com- pany, Hull, England, was taken down and shipped to its destination in small parts, each carefully numbered, and is being re-erected on the shores of the lake, into which it will be kaunched. Paper as Protection for Iron and Steel.* BY LOUIS H. BARKER. About 11 years ago experimental investigation was begun with numerous well-known and established iron paint preservatives in order to ascertain by actual ex- posure tests the best one to resist the destructive action on steel structures of sulphurous gases in the form of smoke combined with the moisture of steam, and since that time 50 or more paints and combinations have been tried. As will be seen by the list herewith among them were many kinds of asphaltum, rubber, graphite, car- bon, lead and iron paints, and though the results showed varying degrees of resistance, it is remarkable that even mea Fig. 1.—Experimental Bars Exposed Eight Months.—Lower Half Covered with Paratiin Paper Over Which Was One Coat of Paint. Upper Half Covered with Three Coats of Paint. with three coats of paint not one was found that did not show rust in less than a year. Of course it is to be understood that the exposures were made so as to sub- ject the test bars to the severest action possible in order to obtain the quickest results. In making the first series of tests new steel plates 10 inches square were used. As, however, the adverse con- ditions we were trying to overcome related to rusty steel, which is more difficult to preserve than new steel, rusty plates were substituted in all tests thereafter. And still further to endeavor to meet the existing conditions new plates were hung up and exposed to the smoke fumes until they became covered with sulphur scale. Tue thought was that an oxide scale due to atmospheric exposure might give different results. This scale or rust formation on these new plates apparently varied not only in amount but also in the time of its formation, supposedly due to different chemical composition. As PE aniline os alia * A paper read at the Atlantic “yy meeting of the American Society for Testing Materials, June, 1905. 149 THE IRON AGE July 20, 1905 “ = So ee he ‘Aap usy pasodxe pur ‘'s}e0> weem eq) 420m [0 ‘9A0Qe S¥ ‘s}EOD “UdAts St quied jo vod apis -gno 9y3 AluQ ‘seded YM QIZus| 911,uUe 1f2q2 pes2a0d Bursq om3 3nq si¥q [Te ‘éseiFo01d U} MOU 8] 3893 Sig, / aig) paured yey Suyuyew “01 993 ‘seded yim pel2a0d 4eq yove jo se ‘seysniq S1IM-YUIM PouUval> puke pesow -O1 U9} ‘eHOUIS 03 dinsodxea Aq pezsns Useq 4SJY PeY Sieq PIO ‘PIO » ‘MON 4 ‘pazeoipul se plo Japusewes 943 ‘mou 919M YOY JO ewos ‘Auol 390) 7 sieq uO opem sem 3893 SiIgy, 2 0} S68T Woiy posal Sjusyeq JO WS} I—'] q8Y, $3893 941 jo Aue ul Sulpueyzs ea!p elas 1194) G3eDIpU JOU Ssdop svedde sured WUsIOgIP 943 Ydtqa Wy 19ps0 SYUT— ALON ‘kip uaym pesodxe put ‘si v0> u99am70q YOOM auo ‘sjured quasayIp 947 JO SIBOD Om. YIM paquTEd 1eqQ Jo 400 Puc Baysniq 311M YIIM PaUte[>d ‘pacowes uey. ‘ayouIs 07 einsodxea Aq pozsns useq ISIQ PRY 7eY? ‘Fuoj 399) [| ‘sseq ajSuv uo spem sem 4s SIVT, P ‘Aap uaym pesodx®9 pue ‘s}v0d u3990M}0q Y9emM UO ‘s}tOD OM} Pazured pu saysniq I yore 241M GUM paneed ‘paaowas uoy ‘ayours 0} oinsodxe Aq peisns ue0q 4SIT pey 3ey2 ‘asenbs seyou; of ‘sojpe(d pjo uo opera alom SSA, e804 T, 7 ‘AIP UdqM pasodxe pu 's} 40D 199MI0q YIEMm BU ‘S37 BOD Om? pajuied ‘auenbs sayou; of ‘sazetd mou UO opeU SEM IS8RSI4UT ¢ * Aap aga posodxe pu ‘s} 209 099M30q 99M BUO ‘S} BOD 99.14} pejujed ‘aienbs seyou oT ‘sozejd mou Uo OpeU o10Mm $7893 BSeUT, 7 | | | | "9203 O41Tel'*** +s *sadeg|"** eveces 0 6asees jrseesees RR To © 60 Cbehececvdeccces teceelecee eeee a ese Cceccccees oapens deveee Odeo cecreciocce seeereeceseclespy a | “f@anjonsig | | « feo per] paws’ ‘sadeg leoccsece ve i! mes OOrseereee ° ’ eee ee eereeeeareeteos eee eee weeeee eeeeeeeee eeeeeeles OCeeeesesee Coolececsecsese Perea lesessese Ce eeeereleeereeeeeteseses "oz o Tesnzon.IS 4 | xfkuo | “‘pery] pew.|**** etecee sede} eee eee eee eee Sel eee eee eee eeesess seeeseeeee * we eee . . * . Ceereeesestelesaseeeeese COOL e eee tee eee eee eae eeteee eeleweeee tease eeeeeteos Sz os | “@ATSO1I05 o | -uON | eeeeenee ‘radeg SOR Oe Oe HOH Le eer Cee ee eel eee eee ee eee Peer eee leew eee OCC OHHH lee eee eeeeee eeerleeee * eeeeeee “ez " *PAISO1I07Z 5 | ; “ON y|**** “deg |" er [ete eeeeeeecees Re leeceressevedccesfsecese e¥ette cee cotecece eocsvccecesocs ee ctvelcccscecees dovcdcfocoseccccccececetss _ "@AISOLIOZD . | | -00N | ee eer cess jadeg [Oe OOOH ee eee EOE HHH H HEHEHE EHH EEE HERS | eee eee ee Pee eee ee Cee ee ee eee eee eres Cee eee eee eee eeeteee sooo | vesee Serene tele e ewww wee weeeealon 7 9” | “@AISO1I0Z | -UON * ee eeeresee sedeg seeeeeee eeeeeeee ‘ueder plop eee e eee ee weeele eee eaten eeeees | OREO ROEECSOSEOS COO CE CeCe ee eee ers CPP CTO e CeCe eer eee eee eee ee Peer reer eer eer es Cee eee eee eee eeeers oo) 1z o iweqdsy z307,4)° sadeg eeeereeseese eee ‘weydsy z307, PTV TTETELELILL LT CLE TTT OLE eee ee eee e eset eeleeeeeetene POCO eee eee eee eee eee ee ete ee eee eeeeeete® 0z P yweydsy ZNO Ls eee eee eeee sadeg! seeereseeeeeere | ueadey ZHOL TET REET EER LEE ee Cee Cees Cee eee eee elenee eater Peete wlan eeeee erent welt eee ene eeeee ‘a oe lyeydsy ZyOTs°ooorr 08° : sedeg)""** eee een eweee! ‘ayydesy) Cecesccece 566.06-6106 6666.08 5 008 6 OR6RS 600 6s 000 6b 6 ECE Ces 0 OCEASCEEOOOOL C660 0 6 008 eeeeee Leeeessseas eeeeeleneeeee Ce erccce-foccsaccoscscesesios gl a | i | yweydsy 710 Le eeeeesseee sadeg eee eee ee ee) ee; aydesry eee eee eee eee weet ee lene eee eee meee ele eee eee ee Sete ele were eee eee eee . eee ee eee eee lee teeter eeeeeeleweeee eee eee eeatne LI a | ~~ | | | | *8N9929}05 74 see e