Metal and Mining Event and Description
Year Cd Key Event Description Notes
b B UK CO 721 1233 ec Coal U England mines coal at Newcastle for the first time. The town will become so famous for its coal that “carrying coals to Newcastle” will become a common phrase to signify superfluous effort. 
b B E  MF 1003 1350 ir MachineTool K A wire-pulling machine invented in Europe is an early step in the development of metallurgical technology. 
c B G C 1992 1599 xir Krupp E Essen merchant Arndt Krupp seizes the opportunity of plague in the Ruhr Valley to buy up extensive lands outside the city at giveaway prices. Krupp survives the plague to found a dynasty (see 1811). 
b IR UK CO 2177 1615 ec Coal U England turns increasingly to cheap coal as timber grows scarce and firewood becomes costly (see 1658). 
c B NA IR 2453 1649 xmt http://southshoreserver.com/blastfurnace/ironworks.html; http://www.cr.nps.gov/nr/twhp/wwwlps/lessons/30saugus/30setting.htm; http://www.nps.gov/sair/ Iron K Massachusetts entrepreneur John Winthrop, Jr., 43, produces more than 8 tons of iron per week at the Saugus works he has built in back of Lynn with blast furnaces and a refinery forge manned by workers obtained in England.  Saugus Iron Works
b IR UK CO 2845 1709 ir http://www.fordham.edu/halsall/mod/modsbook14.html#The%20Industrial%20Revolution; http://history.evansville.net/industry.html#History Coal K An industrial revolution begins in England with the discovery that coke, made from coal, may be substituted for charcoal, made from wood, in blast furnaces used to make pig iron and cast iron. Growth of iron smelting has been limited by the fact that it takes 200 acres of forest to supply one smelting furnace with a year’s supply of charcoal, but Quaker ironmaster Abraham Darby, 31, finds that coke serves just as well for his furnaces at Coalbrookdale, Shropshire, where he makes iron boilers for the Newcomen engine, invented in 1705. Regular use of coke will not come for 50 years and will await improvements by Darby’s son and namesake, but Darby’s breakthrough brings an immediate surge in the demand for coal and for the Newcomen engine, whose energy will be used increasingly to permit production of coal from flooded colliery galleries. 
b IR NA IR 2963 1723 ir http://gcclearn.gcc.cc.va.us/sitehistory/spreferences.htm; http://www.infoplease.com/ce6/people/A0846343.html; http://www.bridgingthewatershed.org/timeline_1700.html; http://gcclearn.gcc.cc.va.us/sitehistory/sp1722.htm Iron K An air furnace to smelt iron near Fredericksburg in the Virginia colony uses bituminous coal which is abundant in the region. Alexander Spotswood has resigned as lieutenant governor to establish the furnace (see 1714; coal, 1742).  Spotswood iron furnace
b B UK IR 3229 1754 xir http://www.saburchill.com/history/events/020.html Iron K The first iron-rolling mill is opened by English entrepreneurs at Foreham in Hampshire. 
b K UK IR 3779 1783 ir http://212.87.70.60/council/general/henrycort/historyhcort.asp; http://www.woodberry.org/acad/hist/irwww/Metallurgy/Biography/Henry_Cort.htm; http://www.hants.gov.uk/museum/gosport/LocalHistory/L_History8/HCort.html Iron K English ironmaster Henry Cort, 43, invents a process for puddling iron that revolutionizes wrought-iron production. He will patent the process next year and will also patent the reverberatory furnace that makes his purifying process possible.  
b K UK IR 4023 1794 ir http://www.pbs.org/wgbh/amex/eastman/peopleevents/pande11.html; http://www.tilthammer.com/bio/maud.html MachineTool K The slide-rest that will be an essential part of the modern lathe is invented in England by Joseph Bramah, or his employee Henry Maudslay, 23, or both working together. The slide-rest is a saddle which moves a cutting tool horizontally along the work being turned. 
c B G IR 4365 1811 ir http://www.woodberry.org/acad/hist/irwww/Metallurgy/Biography/Alfred_Krupp.htm Krupp K Krupp Gusstahlfabrik (Cast Steel Works) “for the manufacture of English cast steel and all articles made thereof” is founded at Essen by German industrialist Friedrich Krupp, 24, a descendant of Arndt Krupp (see 1599; Huntsman,  http://www.thyssenkrupp.com/uhde/chronik-online/history2-short.htm; http://www.thyssenkrupp.com/eng/konzern/internet.html; http://webbie.sfpl.lib.ca.us:2126/servlet/BCRC/hits?c=1&code=sic&year2=&year1=&comp=ThyssenKrupp+AG&secondary=false&month2=&month1=&docNum=DD241&companyType=all&day2=&day1=&bConts=1007&contents=&tab=tab_hc&origSearch=false&ticker=TYEKF&t=KW&s=1&r=s&o=DocTitle&n=25&l=rh&locID=sfpl_main&CO=thyssen
c B G IR 4497 1816 ir http://www.thyssenkrupp-steel.com/ Krupp K Friedrich Krupp produces the first Krupp steel at Essen (see 1811). It is not cast steel, which Sheffield has resumed exporting to Europe, but consists of tiny bars of low-grade steel marketed as files for tanner1838
b K UK IR 4518 1817 ir http://www.woodberry.org/acad/hist/irwww/Textiles/Biography/Richard_Roberts.htm; http://www.neo-tech.com/businessmen/part6.html MachineTool K Welsh inventor Richard Roberts, 28, devises a screw-cutting lathe and a machine for planing metal. He will also invent weaving improvements, advanced steam locomotives, railway cars, and steamships. 
b K UK HI 5023 1828 ir http://www.electricscotland.com/history/other/neilson.htm; http://tanaya.net/Books/inbio10/index1.html Iron K Scottish inventor James Beaumont Neilson, 26, devises a blast furnace to improve the manufacture of iron. 
b K US HI 5201 1831 ir http://virtualmuseumofhistory.com/sethboyden/; http://www.asme.org/history/biography.html Iron K A patent for making malleable cast iron is issued to U.S. inventor Seth Boyden, 43, who invented his process 5 years ago. Boyden invented a process in 1819 for making patent leather and will go on to invent a process for making sheet iron, a hat-shaping machine, and improvements in railroad locomotives and stationary steam engines. 
b F HI 5428 1836 st http://www.xrefer.com/entry/488419 Iron K Galvanized iron (coated with zinc) is invented in France. 
c B G HI 5573 1838 ir http://www.woodberry.org/acad/hist/irwww/Metallurgy/Biography/Alfred_Krupp.htm Krupp K Alfried Krupp, 26, visits Sheffield, England, and meets J. A. Henckel, founder of a steel mill in the Ruhr valley town of Solingen. Krupp is a son of Friedrich whose Fried. Krupp of Essen is turning out tableware on a hand mill devised by Alfried’s brother Hermann (see 1816; 1851). 
b UK HI 5749 1841 ir http://www.spartacus.schoolnet.co.uk/SCwhitworth.htm; http://www.intred.it/euroarms/html/whitworth_and_volunteer_rifles.htm MachineTool K English mechanical engineer Joseph Whitworth, 38, proposes a uniform system of screw threads. He has introduced machine tools and methods that permit working tolerances to be reduced from the generally accepted 1/16 of an inch to a mere 1/1000 of an inch, his suggestion will eventually be accepted, and the British Standard Whitworth (BSW) system will be generally adopted. 
c B G HI 6599 1851 st Krupp K German steel maker Alfried Krupp exhibits a 4,300-pound steel ingot cast miraculously in one piece; it dwarfs a
b K UK CH 6611 1851 ch http://www.westlothian.net/Livingston_History/P_Young.htm; http://home.planet.nl/~velde190/incandes.html; http://petroleumclub.q-net.net.au/kid2kid/history.htm Coal K Scottish industrial chemist James Young, 40, patents a method for producing paraffin by dry distillation of coal. Young will manufacture naphtha, lubricating oils, paraffin oil, and solid paraffin from Bogshead coal and, later, from Scottish shale (see kerosene, 1855). 
c B US C 7052 1856 st http://www.carnegiemuseum.co.uk/html/andrew_carnegie.html USX E Andrew Carnegie, 20, makes his first investment at the encouragement of his new employer and buys 10 shares of Adams Express stock at $50 per share. The Scots-American railway telegrapher has taken a position as secretary to the Pennsylvania Railroad’s Pittsburgh division superintendent Thomas A. Scott, and by 1863 his $500 investment will be returning $1,500 per year in dividends (see 1865). 
c ny B US HI 7667 1862 st http://www.cooper.edu/engineering/chemechem/general/cooper.html; http://www.cooper.edu/admin/handbook/1legacy.html; http://www.slider.com/enc/24000/Hewitt_Abram_Stevens.htm; http://www.slider.com/enc/13000/Cooper_Peter.htm Iron K New York industrialists Abram Stevens Hewitt, 40, and Edward Cooper, 38, of the iron-making firm Cooper, Hewitt fire up the first American open-hearth steel furnace (see Siemens, Martin, 1861).  Cooper, Hewitt
c B US HI 7772 1863 st Bethlehem Steel K Bethlehem Steel has its origin in the Saucon Iron Co. founded at South Bethlehem, Pa., to make rails from local iron ores. The company soon hires John Fritz of Cambria Iron who has pioneered in making Bessemer steel (see 1886). 
c B US C 7970 1865 st http://www.andrewcarnegie.cc/; http://www.fordham.edu/halsall/mod/1889carnegie.htmll http://www.spartacus.schoolnet.co.uk/USAcarnegie.htm USX E Andrew Carnegie enters the steel business with former blacksmith Andrew Klopman (see 1856; 1867). 
c pa B US C 8197 1867 st http://www.greatneck.k12.ny.us/GNPS/Pages/phipps.html; http://web.ulib.csuohio.edu/SpecColl/glihc/articles/carrhist.html USX E United Iron Mills is founded by Philadelphia scale manufacturer Henry Phipps, 28, in partnership with Andrew Carnegie (see 1865; Frick, 1873). 
b B US HI 8384 1868 st http://www.newsteel.com/features/NS9911f2.htm Iron K New Jersey Steel and Iron, owned by Cooper Hewitt, builds the first U.S. open hearth steel furnace at Trenton (see 1862).  Cooper, Hewitt
b US TL 8382 1868 g http://www.boltscience.com/pages/screw2.htm; http://www.asme.org/history/biography.html Iron K The U.S. Government adopts a standard system of screw threads established by Philadelphia machine-tool maker William Sellers, 44 (see Whitworth, 1841). 
c B US PC 8620 1870 st http://voteview.uh.edu/carnegie.htm; http://digital.library.pitt.edu/cgi-bin/pitt/viewitem.stable/00awn7777m/v0000/i000/01240120.tif?config=pitt&userID=NoUserID&dpi=4&main=http%3A%2F%2Fdigital.library.pitt.edu%2Fpittsburgh%2F&cite=%2Fcgi-bin%2Fpitttext-idx.pl%3Fnotisid%3D00awn7777m%26type%3Dheader&bookid=%20The%20story%20of%20Pittsburgh%20and%20vicinity%3A%20illustrated.%20%0A&booknotis=00awn7777m USX U Henry Clay Frick, 21, begins construction and operation of coke ovens in the Connelsville area while working for his grandfather Abraham Overholt, who dies at age 86 after 60 years of making Old Overholt Whiskey. The Pennsylvania farm hand works with associates and persuades Irish-American Pittsburgh judge-banker Thomas Mellon, 57, to loan the group money for its ventures (see 1873). 
b US V 8756 1871 st http://www.bhistorical.org/publications/additionalpublications.html Iron D Birmingham, Ala., is founded and incorporated at a site surrounded by iron ore, coal, and limestone deposits that were exploited in the Civil War to produce Confederate cannonballs and rifles. The town takes its name from Birmingham, England. 
b K US TL 9006 1873 at http://206.76.136.3/trails/nature/barb/barb.html; http://www.comptons.com/encyclopedia/ARTICLES/0175/01965824_A.html; http://www.texasalmanac.com/texasrwb.html Iron A Barbed wire exhibited at the De Kalb, Ill., county fair by Henry Rose is studied by local farmer Joseph Farwell Glidden, 60, and his friend Jacob Haish who independently develop machines for producing coil barbed wire by the mile and obtain patents for two separate styles of the “devil’s rope” that is destined to end the open range in the West; 80.5 million pounds of barbed wire will be manufactured in the next 74 years as the steel wire becomes important not only to farmers and ranchers but also to military operations (see 1867; Gates, 1875). 
c US R 8945 1873 st USX E The U.S. financial panic enables Henry Clay Frick to acquire most of the coal and coke land in the region of Connellsville, Pa., that can be operated at a profit and when Pittsburgh steel mill operators discover that Connellsville coke is the best coke for steel making, the price of coke will rise from $1 per ton to $5 (see 1870). Frick will have gained control of 80 percent of the Connellsville coke output, will be a millionaire by age 30, will be offered a general managership by steel magnate Andrew Carnegie, and will organize the Carnegie Co., whose basic unit will be the Homestead Works (see 1892). 
b K US TL 9415 1876 ir http://www.cmechenan.com/products/07/07a016a.htm MachineTool K The stillson wrench is patented by Somerville, Mass., inventor Daniel C. Stillson who has whittled a wooden model of his pipe or screw wrench. 
c US BK 10251 1881 st http://www.cr.nps.gov/nr/twhp/wwwlps/lessons/50carnegie/50carnegie.htm USX N Andrew Carnegie donates funds for a Pittsburgh library, beginning a series of library gifts (see 1901). 
b B NA ME 10440 1883 mt Copper K Copper ore in the Sudbury Basin of northern Ontario is discovered by builders of the Canadian Pacific Railway,1882,1885
c B OZ R 10591 1885 mt iron E Broken Hill Proprietary Co., Ltd., founded in Australia, will grow to monopolize the nation’s iron and steel production. Mount Gipps sheep station manager George McCulloch, his hired hand Charles Rasp, and 12 other partners have staked claims to a tin mine found by Rasp in 1883,  the mine has proved to be the world’s largest silver-lead-zinc deposit, it is the basis of the new company, will gross more than £150 million before it closes in 1939, and will pay dividends of nearly £16 million.  http://www.bhpbilliton.com/bb/aboutUs/aboutBHP.asp
c B US ME 10732 1886 st Bethlehem Steel K Bethlehem Steel’s John Fritz switches from commercial work to ordnance at the suggestion of Navy Secretary William C. Whitney, 45, who has made a fortune in New York City transit lines (see 1863; Ryan; U.S. Shipbuilding, 1902). 
c B US C 10906 1888 st http://www.riversofsteel.com/homestead.asp; http://andrewcarnegie.tripod.com/photoalbumCL-AllegCo.htm; http://www.library.cmu.edu/SAA-PghHostCmte/articles/PittsburghHistory.html USX E Andrew Carnegie gains majority ownership in the Homestead Steel Works outside Pittsburgh (see 1881; 1892). 
c pa B US F 10902 1888 mt http://www.infoplease.com/ipa/A0771920.html; http://www.bartleby.com/65/gu/Guggenhe.html ASARCO E Philadelphia Smelting and Refining is organized by Meyer Guggenheim, who last year took a venture in copper stock and did so well that he gives up the lace business he started in 1872 and goes into partnership with his four oldest sons (see 1881). Helped by all seven sons, Guggenheim will establish a second smelter in Mexico in 1891 and a third in 1894 (see ASARCO, 1899). 
b K US ME 11235 1890 mt http://evelethmn.com/sights.htm; http://www.rangecities.com/cty/mtiron.shtml; http://geography.miningco.com/library/misc/ucmesabi.htm iron K The discovery of rich iron ore deposits in Minnesota’s Mesabi region by prospector Leonidas Merritt, 46, helps U.S. steelmakers (see Rockefeller, 1893). 
c B A  F 11333 1891 mt http://www.umcopper.com/ Copper E Union Minière du Haut Katanga is organized April 15 to mine African copper under an agreement between Leopold II of the Belgians and Cecil Rhodes aide Robert Williams, 31, who has sent an expedition north to study outcroppings observed by the late David Livingstone. The expedition has reported back that the copper lies across the border in Katanga territory owned by Leopold so Williams has gone to the king and negotiated (see Benguela Railroad, 1903).  Union Minière
c B US 11445 1892 st http://www.bgsu.edu/departments/acs/1890s/carnegie/strike.html; http://iberia.vassar.edu/1896/strikes.html; http://www.pbs.org/wgbh/amex/carnegie/sfeature/mh_horror.html USX J Homestead, Pa., steel workers strike the Carnegie-Phipps mill in June and are refused a union contract by managing head Henry Clay Frick who calls in Pinkerton guards to suppress the strike. Men are shot on both sides, Frick himself is shot and stabbed by Polish-American anarchist Alexander Berkman, 22, but recovers, union organizers are dismissed, and the men go back to working their 12-hour shifts November 20 after nearly 5 months of work stoppage. Andrew Carnegie’s income for the year is $4 million, down only $300,000 from 1891 (see 1888; Carnegie Steel, 1899). 
c B US R 11661 1893 mt http://www.mnhs.org/places/nationalregister/shipwrecks/mpdf/mpdf1.html; http://news.mpr.org/programs/mncentury/9905/ iron E Lake Superior Consolidated Iron Mines is created by oil magnate John D. Rockefeller who has loaned the Merritt brothers $420,000 to develop the Mesabi iron mines of Minnesota and build a railroad to Duluth (see 1890). Rockefeller has called the loan on short notice, the Merritt brothers have been obliged to forfeit their properties, and Rockefeller’s $29.4 million company leases the properties to Henry Clay Frick of the Carnegie-Phipps mill at Homestead, Pa. (see 1892; Carnegie, Oliver, 1896). 
c B US C 12015 1896 st USX E Carnegie Steel and Henry W. Oliver of Pittsburgh buy the Mesabi Range holdings of John D. Rockefeller’s Lake Superior Consolidated Iron Mines (see 1893; 1901). 
b K US ME 12153 1897 st http://www.findagrave.com/pictures/11868.html; http://www.bartleby.com/65/lo/Lowe-Tha.html Iron K The New Lowe Coke Oven invented by Thaddeus S. C. Lowe improves manufacture of high-grade coke for steel making (see 1873). 
c B US C 12273 1898 st http://www.viking.org/rail/mesa/ USX E Illinois Steel of Chicago and Lorrain Steel acquire Minnesota Mining with backing from J.P. Morgan & Co., obtaining a fleet of Great Lakes ore ships and railroads in the Mesabi iron range and in the Chicago area (see 1896; U.S. Steel, 1901). 
c B US C 12277 1898 at http://www.tsha.utexas.edu/handbook/online/articles/view/GG/fga41.html; http://museum.lamarpa.edu/jgates.html Iron E John W. Gates becomes president of American Steel & Wire, which has a virtual monopoly in barbed wire (see 1875).
c B US C 12276 1898 st http://www.republictech.com/corp/corpbig.htm Iron E Republic Steel is created by a merger of Ohio and Pennsylvania firms (see strike, 1937).  Republic Steel
c B US V 12285 1898 tp http://www.infoplease.com/ipa/A0770312.html; http://www.invent.org/book/book-text/timken.html Iron T Timken Roller Bearing Axle Co. is founded by German-American carriage maker Henry Timken, 67, who opened a St. Louis carriage works in 1855, patented a special type of carriage spring in 1877, and has just patented a tapered roller bearing that will make his company the leader in its field.  Timken; http://www.timken.com/aboutus/history/
c B US C 12379 1899 st USX E Carnegie Steel is created by a consolidation of various steel properties controlled by Andrew Carnegie (see Homestead strike, 1892; U.S. Steel, 1901). 
c B US C 12389 1899 mt http://history.acusd.edu/gen/classes/social/guggenheims.html; http://www.utahhistorytogo.org/copper.html ASARCO E The Guggenheims refuse to join the ASARCO copper trust, choosing instead to compete with it (see 1888). Meyer Guggenheim forms alliances with mine owners, gives them financial backing in many cases, and founds a company to seek new ore deposits (see 1901).  http://www.asarco.com/Other/stats_ch.html
c B US F 12387 1899 mt http://www.archives.state.co.us/tour/pcdu6.htm Copper E U.S. copper producers merge to create the American Smelting and Refining Co. trust as growing use of electricity increases demand for copper wire.  
c B US R 12696 1901 mt Iron E John D. Rockefeller’s Lake Superior Consolidated Iron Mines Co., whose Mesabi range properties have been leased by Andrew Carnegie, is absorbed into United States Steel to prevent Rockefeller from starting a rival company (see 1893). 
c B US C 12690 1901 st http://www.spartacus.schoolnet.co.uk/USAmorgan.htm USX E United States Steel Co. is created by J. P. Morgan, who underwrites a successful public offering of stock in the world’s first $1 billion corporation, nets millions for himself in a few weeks of hard work, and pays $492 million to Andrew Carnegie for about $80 million in actual assets in order to eliminate the steel industry’s major price cutter. Carnegie personally receives $225 million in 5 percent gold bonds and is congratulated on being “the richest man in the world” by Morgan who merges Carnegie’s properties with other steel properties to create a company that controls 65 percent of U.S. steel-making capacity (see Bethlehem, 1905).  http://www.usx.com/corp/ussteel/about.htm
c B US C 12698 1901 mt ASARCO E Meyer Guggenheim and his sons gain control of the 2-year-old American Smelting and Refining Co. by buying out Leonard Lewisohn, and they merge their properties into the ASARCO copper trust (see 1899). Daniel Guggenheim, 45, becomes chairman of ASARCO’s executive committee, four Guggenheim sons are on the board of directors, and the Guggenheims begin to extend the copper trust’s operations into areas that include Chilean copper and nitrate mines, Bolivian tin mines, Alaskan gold mines, and Belgian Congo copper mines, diamond mines, and rubber plantations. A nitrate extraction process developed by E. A. Cappelen Smith will be called the Guggenheim process (see Titanic, 1912; Chuquicamata mine, 1910). 
c B US C 12858 1902 st USX E United States Steel Co. has two-thirds of U.S. steel-making capacity. Only public opinion and a sense of noblesse oblige restrain its near-monopoly (see 1901; Bethlehem Steel, 1905). 
c B US C 13451 1905 st Bethlehem Steel E Bethlehem Steel Co. is founded by Charles M. Schwab who determines to build a great competitor to United States Steel (see 1902). Bethlehem begins as the parent company of Schwab’s United States Shipbuilding Co. (see 1907).  http://www.bethsteel.com/about/history.shtml
c B US C 13585 1906 st USX E J. P. Morgan and steel magnate John W. Gates purchase Tennessee Coal & Iron Co. (see 1898; 1907). 
c B US ME 13772 1907 st Bethlehem Steel K Bethlehem Steel’s Saucon Mills open at Bethlehem, Pa., to roll wide-flanged girders and beams that are lighter (and therefore cheaper) than conventional riveted girders but just as strong. Bethlehem has acquired patents from inventor Henry Grey and will license other steel mills to manufacture Grey beams on a royalty basis (see 1905; 1912). 
c B SC ME 13769 1907 Iron K SKF (Svenska Kullager Fabriken, or Swedish Ball Bearing Factory) is founded at Göteborg by Swedish engineer Sven Gustav Wingquist, 30, who has perfected almost frictionless ball bearings using a steel alloy that contains chrome and manganese.   SKF
c B SA R 14219 1910 mt ASARCO E Chile’s enormously productive Chuquicamata copper mine is acquired by the U.S. copper trust ASARCO, controlled since 1901 by the Guggenheim family (see 1923). 
c B US R 14526 1912 st Bethlehem Steel E Bethlehem Steel’s Charles M. Schwab journeys to France and buys Chile’s Tofo Iron Mines from the Schneider interests. The Chilean mines contain 50 million tons of ore with iron content 10 percent better than Lake Superior ores (see 1907; 1913). 
c B US C 14698 1913 st Bethlehem Steel E Bethlehem Steel’s Charles M. Schwab acquires Fore River Shipbuilding and makes Eugene Grace, 37, president of Bethlehem. Grace will develop the company into the world’s second largest steel maker (see 1912; Sparrows Point, 1916). 
b K US CL 14813 1913 mt Machine L Swedish-American inventor Gideon Sundback, 33, develops the first dependable slide-fastener and efficient machines to manufacture it commercially. He attaches matching metal locks to a flexible backing, each tooth being a tiny hook that engages with an eye under an adjoining hook on an opposite tape. He will patent improvements on his slide fastener in 1917 and assign the patents to the Hookless Fastener Co. of Meadville, Pa., which will manufacture the Talon slide fastener (see Judson, 1893; “zipper,” 1926).  
c B US C 15236 1916 st Bethlehem Steel E Bethlehem Steel’s Charles M. Schwab pays $49 million to acquire the Pennsylvania Steel Co. formerly controlled by the Pennsylvania Railroad. The company has a plant at Steelton, ore mines in Cuba, more in Pennsylvania, and—most important—a tidewater steel mill on Chesapeake Bay at Sparrows Point, Md., where Bethlehem will create a vast shipyard as it continues to prosper on government shipbuilding contracts. 
c B US C 16222 1922 mt Machine C U.S. electrical engineer Vannevar Bush, 32, helps start a company to produce the S-tube, a gaseous rectifier developed by inventor C. G. Smith that greatly improves the system of supplying electricity to radios (see analog computer, 1930). 
c B US C 16344 1923 st USX E United States Steel reduces its 12-hour day to 8 hours August 2 following the lead set by American Rolling Mill in 1916.
c B G C 17010 1926 st Krupp E A merger of German industrial giants creates the mammoth United Steel Works (Vereinigte Stahlwerke) cartel, rivaled only by the great Krupp works at Essen. Major mining enterprises join with the Rhine-Elbe Union steel company that Albert Vogler, 49, has built up with help from the late Hugo Stinnes, Nazi industrialist Emil Kirdorf, 79, and Nazi steel maker Fritz Thyssen, 53.   
c B G WP 17052 1926 st Krupp K B. F. Goodrich chemist Waldo Lonsbury Semon, 28, pioneers synthetic rubber, using catalysts in an effort to extract the chlorine from the polymer polyvinyl chloride. He polymerizes PVC into a white powder, plasticizes the PVC powder with agents such as tri-creylphosphate, and produces a workable synthetic that can be rolled and treated like rubber. The product is odorless, weatherproof, age- and acid-resistant, and will be introduced commercially in 1933 under the name Koroseal (see Nieuwland, 1925; butadiene, 1939). 
b B US HI 19205 1937 st USX J The United Steel Workers union meets with resistance from “little steel” firms, which include Bethlehem with 82,000 workers, Republic with 53,000, Youngstown Sheet and Tube with 27,000, and National, American Rolling Mills, and Inland with a combined total of some 38,000. 
c B US HI 19204 1937 st USX J United States Steel permits unionization of its workers March 2 to avoid a strike (see 1936). 
c B US C 19621 1939 st USX E U.S. Steel reports a net income of $41 million on sales of $857 million after a 1938 deficit (see 1964). The average U.S. Steel employee works just over 25 hours per week at a wage of just under 90¢ per hour, and his annual wage of about $1,600 is $100 more than the average earned by General Motors employees. Both companies employ roughly 220,000 people. 
c B US EL 19861 1940 ec Coal U A continuous coal-digging machine developed by Consolidation Coal president Carson Smith and engineer Harold Farnes Silver, 39, will revolutionize coal mining.  Six banks of cutter chains moving at 500 feet per minute will enable the Joy machine to dig out a series of vertical slices 18 inches deep and to bore a tunnel up to 18 feet wide. Joseph Joy, now 56, will purchase the rights in 1947; his Joy Manufacturing Co. will dominate coal-mining equipment production.  
b US P 20996 1947 ec Coal E U.S. coal mines return to private ownership June 30 after operation by the federal government since May 22 of last year.
c B J C 21551 1950 st iron E Nippon Steel Corp., founded at Tokyo, combines Yawata Iron & Steel with Fuji Steel to create an enterprise with the Nippon Steel
b OZ R 21863 1952 mt Iron E Australian cattleman-prospector Langley George Hancock, 43, discovers a mountain of solid iron ore in the Hammersley
c B G C 22593 1957 st Krupp E Fried. Krupp agrees to supply the Soviet Union with a chemical plant and a synthetic fiber complex. The German
c B US C 23260 1962 st USX E United States Steel raises prices $6 per ton April 10, President Kennedy reacts angrily, two firms do not follow Big
b US R 23515 1964 mt Iron E The largest iron-ore contract in world history is signed to supply Japan’s major steel firms with 65.5 million tons of ore
c B US TL 25302 1976 iron K Cincinnati Milacron enters the industrial robot business, challenging the pioneer firm Condec Corp. to produce robots Milacron
c B US C 26109 1982 st USX E U.S. Steel acquires Marathon Oil for $3 billion.