Misplaced Pages

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115-536: He and his brother, Lewis M. Crosley , were responsible for many firsts in consumer products and broadcasting. During World War II , Crosley's facilities produced more proximity fuzes than any other U.S. manufacturer, and made several production design innovations. Crosley Field , a stadium in Cincinnati, Ohio , was renamed for him, and the street-level main entrance to Great American Ball Park in Cincinnati

230-605: A Tampa, Florida , architect, drafting the plans. Sarasota contractor Paul W. Bergman built the 11,000-square-foot (1,000 m) winter retreat in 1929–30 on a 63-acre (25-hectare) parcel of land. The two-and-a-half-story house include ten bedrooms and ten bathrooms, as well as auxiliary garages and living quarters for staff. The house contains and is reportedly the first residence built in Florida using steel -frame construction to provide protection against fires and hurricanes . After Crosley's wife, Gwendolyn, died of tuberculosis at

345-579: A 20-watt transmitter using the call sign 8CR. On March 22, 1922, the Crosley Broadcasting Corporation received a commercial license to operate as WLW at 50 watts. Dorman D. Israel, a young radio engineer from the University of Cincinnati, designed and built the station's first two radio transmitters (at 100 and 1,000 watts). The Crosley Corporation claimed that in 1928 WLW became the first 50- kilowatt commercial station in

460-412: A BOS process is manufactured in one-twelfth the time. Today, electric arc furnaces (EAF) are a common method of reprocessing scrap metal to create new steel. They can also be used for converting pig iron to steel, but they use a lot of electrical energy (about 440 kWh per metric ton), and are thus generally only economical when there is a plentiful supply of cheap electricity. The steel industry

575-587: A campaign for its preservation and public acquisition. In 1991 the state of Florida purchased the property and 16.5 acres (6.7 hectares) of the bay-front estate that included the structures that Crosley had built in 1929–30. A larger portion of the original property was developed into a satellite campus for the University of South Florida . The University of South Florida Sarasota-Manatee campus opened its new facilities in August 2006. The present-day mansion, called

690-713: A carbon-intermediate steel by the 1st century AD. There is evidence that carbon steel was made in Western Tanzania by the ancestors of the Haya people as early as 2,000 years ago by a complex process of "pre-heating" allowing temperatures inside a furnace to reach 1300 to 1400 °C. Evidence of the earliest production of high carbon steel in South Asia is found in Kodumanal in Tamil Nadu ,

805-468: A catchy sobriquet that was far from true, although he did have more than a dozen jobs before he got into automobile accessories. Crosley helped quite a few inventors up the ladder of success by buying the rights to their inventions and sharing in the profits. His work provided employment and products for millions of people. A few of Crosley's company's more noteworthy accomplishments: Lewis M. Crosley Too Many Requests If you report this error to

920-444: A change of volume. In this case, expansion occurs. Internal stresses from this expansion generally take the form of compression on the crystals of martensite and tension on the remaining ferrite, with a fair amount of shear on both constituents. If quenching is done improperly, the internal stresses can cause a part to shatter as it cools. At the very least, they cause internal work hardening and other microscopic imperfections. It

1035-484: A dog listening to " his master's voice " from a phonograph , Crosley adopted a mascot in the form of a dog with headphones listening to a Crosley Pup radio In 1928 Crosley's firm arranged for the construction of the Crosley Building at Camp Washington , a Cincinnati neighborhood, and used the facility for its for radio manufacturing, radio broadcasting, and for manufacturing other devices. In 1930 Crosley

1150-428: A ferrite BCC crystal form, but at higher carbon content it takes a body-centred tetragonal (BCT) structure. There is no thermal activation energy for the transformation from austenite to martensite. There is no compositional change so the atoms generally retain their same neighbours. Martensite has a lower density (it expands during the cooling) than does austenite, so that the transformation between them results in

1265-445: A hard but brittle martensitic structure. The steel is then tempered, which is just a specialized type of annealing, to reduce brittleness. In this application the annealing (tempering) process transforms some of the martensite into cementite, or spheroidite and hence it reduces the internal stresses and defects. The result is a more ductile and fracture-resistant steel. When iron is smelted from its ore, it contains more carbon than

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1380-414: A house at Cat Cays , Bahamas . Crosley began work selling bonds for an investment banker ; however, at the age of twenty-one he decided to pursue a career in automobile manufacturing. The mass-production techniques employed by Henry Ford also caught his attention and would be implemented by his brother, Lewis, when the two began manufacturing radios in 1921. In 1907 Crosley formed a company to build

1495-578: A house, while his wife returned to Cincinnati to live with her parents. The young couple saw each other on the weekends until Crosley returned to Cincinnati in 1911 to live and work after the birth of his first child. Gwendolyn Crosley, who suffered from tuberculosis , died at the Crosleys' winter home in Sarasota, Florida , on February 26, 1939. Crosley married Eva Emily Brokaw (1912–1955) in 1952. She died in Cincinnati, Ohio. Crosley's primary residence

1610-611: A hunting retreat he called Sleepy Hollow Farm in Jennings County, Indiana, and a Caribbean vacation home at Cat Cays, Bahamas. The Crosley "Moonbeam" was built in Sharonville, Ohio and was first flown on December 8, 1929. It was designed by Harold D. Hoekstra, an employee of Crosley's when Crosley was president of the Crosley Aircraft Company. (Hoeskstra later became Chief of Engineering and Design for

1725-428: A larger plant and later made subsequent expansions. The Crosley Radio Corporation became the largest radio manufacturer in the world in 1925; its slogan, "You’re There With A Crosley," was used in all its advertising. In 1925 Crosley introduced another low-cost radio set. The small, one-tube, regenerative radio was called the " Crosley Pup " and sold for $ 9.75. While Victor had Nipper , its famous trademark showing

1840-412: A narrow range of concentrations of mixtures of carbon and iron that make steel, several different metallurgical structures, with very different properties can form. Understanding such properties is essential to making quality steel. At room temperature , the most stable form of pure iron is the body-centred cubic (BCC) structure called alpha iron or α-iron. It is a fairly soft metal that can dissolve only

1955-573: A personal level, Crosley was an avid sportsman. Although he never had a pilot's license, Crosley owned several seaplanes , such as the Douglas Dolphin , and airplanes , including building five Crosley "Moonbeam" airplanes. In addition, Crosley claimed that at one time he was slotted to be a driver in the Indianapolis 500 , but that claim was not entirely accurate. He was entered but broke his arm working for Carl Fisher (see above). Crosley

2070-407: A precedent for some of today's most outstanding sales policies. In 1921 Crosley's young son asked for a radio , a new item at that time, but Crosley was surprised that toy radios cost more than $ 100 at a local department store. With the help of a booklet called "The ABC of Radio," he and his son decided to assemble the components and build their own crystal radio set. Crosley immediately recognized

2185-798: A shop hand at the Fisher Automobile Company . Crosley stayed for about a year, but left after he broke his arm starting a car at the auto dealership. After recovering from his injury at home in College Hill, Crosley returned to Indianapolis in 1909 to briefly work for several auto manufacturers, including jobs as an assistant sales manager for the Parry Auto Company and a salesman for the National Motor Vehicle Company . He also volunteered to help promote National's auto racing team. His next job

2300-534: A small concentration of carbon, no more than 0.005% at 0 °C (32 °F) and 0.021 wt% at 723 °C (1,333 °F). The inclusion of carbon in alpha iron is called ferrite . At 910 °C, pure iron transforms into a face-centred cubic (FCC) structure, called gamma iron or γ-iron. The inclusion of carbon in gamma iron is called austenite. The more open FCC structure of austenite can dissolve considerably more carbon, as much as 2.1%, (38 times that of ferrite) carbon at 1,148 °C (2,098 °F), which reflects

2415-453: A steel's final rolling, it is heat treated for strength; however, this is relatively rare. Steel was known in antiquity and was produced in bloomeries and crucibles . The earliest known production of steel is seen in pieces of ironware excavated from an archaeological site in Anatolia ( Kaman-Kalehöyük ) which are nearly 4,000 years old, dating from 1800 BC. Wootz steel

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2530-672: Is continuously cast into long slabs, cut and shaped into bars and extrusions and heat treated to produce a final product. Today, approximately 96% of steel is continuously cast, while only 4% is produced as ingots. The ingots are then heated in a soaking pit and hot rolled into slabs, billets , or blooms . Slabs are hot or cold rolled into sheet metal or plates. Billets are hot or cold rolled into bars, rods, and wire. Blooms are hot or cold rolled into structural steel , such as I-beams and rails . In modern steel mills these processes often occur in one assembly line , with ore coming in and finished steel products coming out. Sometimes after

2645-403: Is common for quench cracks to form when steel is water quenched, although they may not always be visible. There are many types of heat treating processes available to steel. The most common are annealing , quenching , and tempering . Annealing is the process of heating the steel to a sufficiently high temperature to relieve local internal stresses. It does not create a general softening of

2760-403: Is desirable. To become steel, it must be reprocessed to reduce the carbon to the correct amount, at which point other elements can be added. In the past, steel facilities would cast the raw steel product into ingots which would be stored until use in further refinement processes that resulted in the finished product. In modern facilities, the initial product is close to the final composition and

2875-453: Is distinguishable from wrought iron (now largely obsolete), which may contain a small amount of carbon but large amounts of slag . Iron is commonly found in the Earth's crust in the form of an ore , usually an iron oxide, such as magnetite or hematite . Iron is extracted from iron ore by removing the oxygen through its combination with a preferred chemical partner such as carbon which

2990-408: Is heat treated to contain both a ferritic and martensitic microstructure to produce a formable, high strength steel. Transformation Induced Plasticity (TRIP) steel involves special alloying and heat treatments to stabilize amounts of austenite at room temperature in normally austenite-free low-alloy ferritic steels. By applying strain, the austenite undergoes a phase transition to martensite without

3105-535: Is known as stainless steel . Tungsten slows the formation of cementite , keeping carbon in the iron matrix and allowing martensite to preferentially form at slower quench rates, resulting in high-speed steel . The addition of lead and sulphur decrease grain size, thereby making the steel easier to turn , but also more brittle and prone to corrosion. Such alloys are nevertheless frequently used for components such as nuts, bolts, and washers in applications where toughness and corrosion resistance are not paramount. For

3220-472: Is named Crosley Terrace in his honor. Crosley's Pinecroft estate home in Cincinnati , Ohio , and Seagate , his former winter retreat in Sarasota, Florida are listed in the National Register of Historic Places . Powel Crosley Jr. was born on September 18, 1886, in Cincinnati, Ohio , to Charlotte Wooley (Utz) (1864–1949) and Powel Crosley Sr. (1849–1932), a lawyer. Powel Jr. was the oldest of

3335-691: Is often considered an indicator of economic progress, because of the critical role played by steel in infrastructural and overall economic development . In 1980, there were more than 500,000 U.S. steelworkers. By 2000, the number of steelworkers had fallen to 224,000. The economic boom in China and India caused a massive increase in the demand for steel. Between 2000 and 2005, world steel demand increased by 6%. Since 2000, several Indian and Chinese steel firms have expanded to meet demand, such as Tata Steel (which bought Corus Group in 2007), Baosteel Group and Shagang Group . As of 2017 , though, ArcelorMittal

3450-514: Is one of the largest manufacturing industries in the world, but also one of the most energy and greenhouse gas emission intense industries, contributing 8% of global emissions. However, steel is also very reusable: it is one of the world's most-recycled materials, with a recycling rate of over 60% globally . The noun steel originates from the Proto-Germanic adjective * * stahliją or * * stakhlijan 'made of steel', which

3565-463: Is one of the most commonly manufactured materials in the world. Steel is used in buildings, as concrete reinforcing rods, in bridges, infrastructure, tools, ships, trains, cars, bicycles, machines, electrical appliances, furniture, and weapons. Iron is always the main element in steel, but many other elements may be present or added. Stainless steels , which are resistant to corrosion and oxidation , typically need an additional 11% chromium . Iron

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3680-551: Is one of the world's most-recycled materials, with a recycling rate of over 60% globally; in the United States alone, over 82,000,000 metric tons (81,000,000 long tons; 90,000,000 short tons) were recycled in the year 2008, for an overall recycling rate of 83%. As more steel is produced than is scrapped, the amount of recycled raw materials is about 40% of the total of steel produced - in 2016, 1,628,000,000 tonnes (1.602 × 10 long tons; 1.795 × 10 short tons) of crude steel

3795-520: Is possible only by reducing iron's ductility. Steel was produced in bloomery furnaces for thousands of years, but its large-scale, industrial use began only after more efficient production methods were devised in the 17th century, with the introduction of the blast furnace and production of crucible steel . This was followed by the Bessemer process in England in the mid-19th century, and then by

3910-434: Is possible to make very high-carbon (and other alloy material) steels, but such are not common. Cast iron is not malleable even when hot, but it can be formed by casting as it has a lower melting point than steel and good castability properties. Certain compositions of cast iron, while retaining the economies of melting and casting, can be heat treated after casting to make malleable iron or ductile iron objects. Steel

4025-400: Is quite ductile , or soft and easily formed. In steel, small amounts of carbon, other elements, and inclusions within the iron act as hardening agents that prevent the movement of dislocations . The carbon in typical steel alloys may contribute up to 2.14% of its weight. Varying the amount of carbon and many other alloying elements, as well as controlling their chemical and physical makeup in

4140-457: Is related to * * stahlaz or * * stahliją 'standing firm'. The carbon content of steel is between 0.02% and 2.14% by weight for plain carbon steel ( iron - carbon alloys ). Too little carbon content leaves (pure) iron quite soft, ductile, and weak. Carbon contents higher than those of steel make a brittle alloy commonly called pig iron . Alloy steel is steel to which other alloying elements have been intentionally added to modify

4255-441: Is the base metal of steel. Depending on the temperature, it can take two crystalline forms (allotropic forms): body-centred cubic and face-centred cubic . The interaction of the allotropes of iron with the alloying elements, primarily carbon, gives steel and cast iron their range of unique properties. In pure iron, the crystal structure has relatively little resistance to the iron atoms slipping past one another, and so pure iron

4370-547: Is the world's largest steel producer . In 2005, the British Geological Survey stated China was the top steel producer with about one-third of the world share; Japan , Russia , and the United States were second, third, and fourth, respectively, according to the survey. The large production capacity of steel results also in a significant amount of carbon dioxide emissions inherent related to

4485-498: Is then lost to the atmosphere as carbon dioxide. This process, known as smelting , was first applied to metals with lower melting points, such as tin , which melts at about 250 °C (482 °F), and copper , which melts at about 1,100 °C (2,010 °F), and the combination, bronze, which has a melting point lower than 1,083 °C (1,981 °F). In comparison, cast iron melts at about 1,375 °C (2,507 °F). Small quantities of iron were smelted in ancient times, in

4600-510: The Federal Aviation Administration .) Unique features of this aircraft are the square tube longerons used in the fuselage construction, use of torque tubes instead of control cable, and the corrugated aluminum ailerons. Original power was supplied by a four-cylinder inverted inline 90 hp Crosley engine. At one time it was also tested with a 110 Warner Scarab engine. N147N reportedly was the first airplane on which

4715-655: The Golconda area in Andhra Pradesh and Karnataka , regions of India , as well as in Samanalawewa and Dehigaha Alakanda, regions of Sri Lanka . This came to be known as wootz steel , produced in South India by about the sixth century BC and exported globally. The steel technology existed prior to 326 BC in the region as they are mentioned in literature of Sangam Tamil , Arabic, and Latin as

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4830-499: The Indianapolis Motor Speedway on April 28, 1939, to mixed reviews. The compact car had an 80-inch (200 cm) wheelbase and a 38.87-cubic-inch (637.0 cm), two-cylinder , air cooled Waukesha engine . Crosley estimated that his cloth-top car, which weighed less than 1,000 pounds (450 kg), could get fifty miles per gallon at speeds of up to fifty miles per hour. The sedan model sold for $ 325, while

4945-529: The University of Cincinnati , where he began studies in engineering, but switched to law, primarily to satisfy his father, before dropping out of college in 1906 after two years of study. Crosley married Gwendolyn Bakewell Aiken (1889–1939) in Hamilton County, Ohio, on October 17, 1910. They had two children. After his marriage, Crosley continued to work in automobile sales in Muncie to earn money to buy

5060-599: The cementation process was described in a treatise published in Prague in 1574 and was in use in Nuremberg from 1601. A similar process for case hardening armour and files was described in a book published in Naples in 1589. The process was introduced to England in about 1614 and used to produce such steel by Sir Basil Brooke at Coalbrookdale during the 1610s. The raw material for this process were bars of iron. During

5175-607: The open-hearth furnace . With the invention of the Bessemer process, a new era of mass-produced steel began. Mild steel replaced wrought iron . The German states were the major steel producers in Europe in the 19th century. American steel production was centred in Pittsburgh , Bethlehem, Pennsylvania , and Cleveland until the late 20th century. Currently, world steel production is centered in China, which produced 54% of

5290-589: The "Go-Bi-Bi," a "rideable baby walker," among other products. In February 1934, Crosley purchased the Cincinnati Reds professional baseball team from Sidney Weil , who had lost much of his wealth after the Wall Street Crash of 1929 . Crosley kept the team from going bankrupt and leaving Cincinnati. He was also owner of the Reds when the team won two National League titles (in 1939 and 1940) and

5405-420: The "Shelvador" refrigerator and launched the new appliance in 1933. At that time it was the only model with shelves in the door. In addition to refrigerators, Crosley's company sold other consumer products that included the "XERVAC," a device purported to "revitalize inactive hair cells" and "stimulate hair growth". Crosley also introduced the "Autogym," a motor-driven weight-loss device with a vibrating belt, and

5520-445: The 17th century, it was realized that the best steel came from oregrounds iron of a region north of Stockholm , Sweden. This was still the usual raw material source in the 19th century, almost as long as the process was used. Crucible steel is steel that has been melted in a crucible rather than having been forged , with the result that it is more homogeneous. Most previous furnaces could not reach high enough temperatures to melt

5635-475: The 17th century, the first step in European steel production has been the smelting of iron ore into pig iron in a blast furnace . Originally employing charcoal, modern methods use coke , which has proven more economical. In these processes, pig iron made from raw iron ore was refined (fined) in a finery forge to produce bar iron , which was then used in steel-making. The production of steel by

5750-608: The Arabs from Persia, who took it from India. It was originally created from several different materials including various trace elements , apparently ultimately from the writings of Zosimos of Panopolis . In 327 BC, Alexander the Great was rewarded by the defeated King Porus , not with gold or silver but with 30 pounds of steel. A recent study has speculated that carbon nanotubes were included in its structure, which might explain some of its legendary qualities, though, given

5865-550: The Federal Radio Commission (FRC), which later became the FCC. Crosley Broadcasting did not go on-air with regular television programming as WLWT until after Crosley sold the company to Aviation Corporation ( Avco ) and he had become a member of Avco's board of directors.. In the 1930s Crosley added refrigerators and other household appliances and consumer goods to his company's product line. Crosley's " Icyball "

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5980-453: The HM.14 "Pou du Ciel" ("Flying Flea"). He envisioned a simple aircraft that amateurs could build, and even teach themselves to fly. In an attempt to render the aircraft stall proof and safe for amateur pilots to fly, Mignet staggered the two main wings. The Mignet-Crosley "Pou du Ciel" is the first HM.14 made and flown in the United States. Edward Nirmaier, a Crosley employee, and two other men built

6095-922: The Hermes Automobile Company and cyclecars for the De Cross Cyclecar Company and the L. Porter Smith and Brothers Company before finding financial success in manufacturing and distributing automobile accessories. In 1916 he co-founded the American Automobile Accessory Company with Ira J. Cooper. The company's bestseller was a tire liner of Crosley's invention. Another popular product was a flag holder that held five American flags and clamped to auto radiator caps. By 1919 Crosley had sales of more than $ 1 million in parts. He also diversified into other consumer products such as phonograph cabinets, radios, and home appliances. Crosley's greatest strength

6210-470: The Linz-Donawitz process of basic oxygen steelmaking (BOS), developed in 1952, and other oxygen steel making methods. Basic oxygen steelmaking is superior to previous steelmaking methods because the oxygen pumped into the furnace limited impurities, primarily nitrogen, that previously had entered from the air used, and because, with respect to the open hearth process, the same quantity of steel from

6325-666: The Marathon Six, a six-cylinder model priced at $ 1,700, which was at the low end of the luxury car market. With $ 10,000 in capital that he raised from investors, Crosley established Marathon Six Automotive inexpensive automobile, in Connersville, Indiana , and built a prototype of his car, but a nationwide financial panic caused investment capital to dwindle and he failed to fund its production. Still determined to establish himself as an automaker, Crosley moved to Indianapolis , Indiana , where he worked for Carl G. Fisher as

6440-620: The Powel Crosley Estate, is used as a meeting, conference, and event venue. Crosley, an avid sportsman, also owned several sports, hunting, and fishing camps, including an island retreat called Nikassi on McGregor Bay , Lake Huron , Canada; Bull Island, South Carolina ; Pimlico Plantation, along the Cooper River north of Charleston, South Carolina ; Sleepy Hollow Farm, a retreat in Jennings County, Indiana and

6555-788: The Pup project was discontinued due to several weak components. Seven of the thirty-seven Pups that were built are known to survive. Although Crosley retained ownership of the Cincinnati Reds baseball team and Crosley Motors, he sold his other business interests, including WLW radio and the Crosley Corporation, to the Aviation Corporation (Avco) in 1945. Crosley remained on the Avco board for several years afterward. Avco put Ohio's second television station, WLWT-TV , on

6670-494: The U.S. government, began operating the Bethany Relay Station , which was dedicated on September 23, 1944, to broadcast " Voice of America " programming. The relay station's broadcasts continued until 1994. Crosley's broadcasting company eventually expanded into additional markets. The company was experimenting with television broadcasting as early as 1929, when it received an experimental television license from

6785-478: The United States with a regular broadcasting schedule. In 1934 Crosley put a 500-kilowatt transmitter on the air, making WLW the station with the world's most powerful radio transmitter for the next five years. (On occasion, the station's power was boosted as high as 700,000 watts.) Throughout the 1930s, Cincinnati's WLW was considered "the Nation's Station," producing many hours of network programming each week. Among

6900-534: The Wikimedia System Administrators, please include the details below. Request from 172.68.168.237 via cp1104 cp1104, Varnish XID 207202380 Upstream caches: cp1104 int Error: 429, Too Many Requests at Thu, 28 Nov 2024 07:45:14 GMT Steel Steel is an alloy of iron and carbon with improved strength and fracture resistance compared to other forms of iron. Because of its high tensile strength and low cost, steel

7015-698: The World Series in 1940. Crosley was also a pioneer in broadcasting baseball games on the radio. On May 24, 1935, the first nighttime game in Major League baseball history was held at Cincinnati's Crosley Field , which was renamed in Crosley's honor after he acquired the team (before this, the ballpark was named Redland Field), between the Cincinnati Reds and Philadelphia Phillies under newly installed electric lighting. With attendance at its evening games more than four times greater that its daytime events,

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7130-669: The air in 1948, the same year it began manufacturing television sets. Avco manufactured some of the first portable television sets under the Crosley brand name. Crosley ceased to exist as a brand in 1956, when Avco closed the unprofitable product line; however, the Crosley name was so well established that Avco's broadcasting division, owner of WLWT-TV, retained the Crosley name until 1968, seven years after Crosley's death. Crosley sold Pimlico Plantation, now demolished, in 1942, and Seagate, his winter retreat in Florida in 1947. In 1954 Crosley sold his vacation home at Cat Keys, Bahamas. In 1956 he sold Sleepy Hollow Farm in Jennings County, Indiana, to

7245-781: The airplane in November 1935 for Crosley, who believed that the affordable "Flea" could become a popular aircraft in the United States. After several flights, a crash at the Miami Air Races in December 1935 finally grounded the Crosley HM.14. Although the airplane enjoyed a period of intense popularity in France and England, a series of accidents in 1935-36 permanently ruined the airplane's reputation. Of all Crosley's dreams, success at building an affordable automobile for Americans

7360-554: The appeal of an inexpensive radio and hired two University of Cincinnati students to help design a low-cost set that could be mass-produced. Crosley named the radio the "Harko" and introduced it to the market in 1921. The inexpensive radio set sold for $ 7, making it affordable to the masses. Soon, the Crosley Radio Corporation was manufacturing radio components for the rapidly growing industry and making its own line of radios. By 1924 Crosley had moved his company to

7475-497: The assembly line on May 9, 1946. The new Crosley "CC" model automobile continued the company's pre-war tradition of offering small, lightweight, and low-priced cars. It sold for $ 850 and got thirty to fifty miles per U.S. gallon. In 1949 Crosley became the first American carmaker to put disc brakes on all of its models. Unfortunately for Crosley, fuel economy ceased to be an inducement after gas rationing ended, and American consumers also began to prefer bigger cars. Crosley's best year

7590-436: The austenite grain boundaries until the percentage of carbon in the grains has decreased to the eutectoid composition (0.8% carbon), at which point the pearlite structure forms. For steels that have less than 0.8% carbon (hypoeutectoid), ferrite will first form within the grains until the remaining composition rises to 0.8% of carbon, at which point the pearlite structure will form. No large inclusions of cementite will form at

7705-471: The austenite is for it to precipitate out of solution as cementite , leaving behind a surrounding phase of BCC iron called ferrite with a small percentage of carbon in solution. The two, cementite and ferrite, precipitate simultaneously producing a layered structure called pearlite , named for its resemblance to mother of pearl . In a hypereutectoid composition (greater than 0.8% carbon), the carbon will first precipitate out as large inclusions of cementite at

7820-494: The boundaries in hypoeutectoid steel. The above assumes that the cooling process is very slow, allowing enough time for the carbon to migrate. As the rate of cooling is increased the carbon will have less time to migrate to form carbide at the grain boundaries but will have increasingly large amounts of pearlite of a finer and finer structure within the grains; hence the carbide is more widely dispersed and acts to prevent slip of defects within those grains, resulting in hardening of

7935-521: The characteristics of steel. Common alloying elements include: manganese , nickel , chromium , molybdenum , boron , titanium , vanadium , tungsten , cobalt , and niobium . Additional elements, most frequently considered undesirable, are also important in steel: phosphorus , sulphur , silicon , and traces of oxygen , nitrogen , and copper . Plain carbon-iron alloys with a higher than 2.1% carbon content are known as cast iron . With modern steelmaking techniques such as powder metal forming, it

8050-457: The company's largest military contract. During the war, Crosley's auto manufacturing division, CRAD (for Crosley Radio Auto Division), in Richmond, Indiana, produced experimental motorcycles , tricycles , four-wheel-drive vehicles, and continuous track vehicles, including some amphibious models. All of these military prototypes were powered by the two-cylinder boxer engine that had powered

8165-557: The coupe sold for $ 350. Panel truck and pickup truck models were added to the product line in 1940. During the pre-war period, the company had manufacturing plants in Camp Washington, Ohio ; Richmond, Indiana ; and Marion, Indiana . When the onset of war ended all automobile production in the United States in 1942, Crosley had produced 5,757 cars. After World War II ended, Crosley resumed building its small cars for civilian use. His company's first post-war automobile rolled off

8280-422: The desired properties. Nickel and manganese in steel add to its tensile strength and make the austenite form of the iron-carbon solution more stable, chromium increases hardness and melting temperature, and vanadium also increases hardness while making it less prone to metal fatigue . To inhibit corrosion, at least 11% chromium can be added to steel so that a hard oxide forms on the metal surface; this

8395-557: The entertainers who performed live from WLW's studios were Red Skelton , Doris Day , Jane Froman , Fats Waller , Rosemary Clooney , and the Mills Brothers . In 1939 the Federal Communications Commission (FCC) ruled that WLW had to reduce its power to 50 kilowatts, partly because it interfered with the broadcasts of other stations, but largely due to its smaller competitors, who complained about

8510-474: The family's four children. Crosley became interested in the mechanics of automobiles at a young age and wanted to become an automaker. While living with his family in College Hill, a suburb of Cincinnati, twelve-year-old Crosley made his first attempt at building a vehicle. Crosley began high school in College Hill and transferred to the Ohio Military Institute . In 1904 Crosley enrolled at

8625-413: The final steel (either as solute elements, or as precipitated phases), impedes the movement of the dislocations that make pure iron ductile, and thus controls and enhances its qualities. These qualities include the hardness , quenching behaviour , need for annealing , tempering behaviour , yield strength , and tensile strength of the resulting steel. The increase in steel's strength compared to pure iron

8740-648: The finest steel in the world exported to the Roman, Egyptian, Chinese and Arab worlds at that time – what they called Seric Iron . A 200 BC Tamil trade guild in Tissamaharama , in the South East of Sri Lanka, brought with them some of the oldest iron and steel artifacts and production processes to the island from the classical period . The Chinese and locals in Anuradhapura , Sri Lanka had also adopted

8855-513: The form of charcoal) in a crucible, was produced in Merv by the 9th to 10th century AD. In the 11th century, there is evidence of the production of steel in Song China using two techniques: a "berganesque" method that produced inferior, inhomogeneous steel, and a precursor to the modern Bessemer process that used partial decarburization via repeated forging under a cold blast . Since

8970-599: The hardenability of thick sections. High strength low alloy steel has small additions (usually < 2% by weight) of other elements, typically 1.5% manganese, to provide additional strength for a modest price increase. Recent corporate average fuel economy (CAFE) regulations have given rise to a new variety of steel known as Advanced High Strength Steel (AHSS). This material is both strong and ductile so that vehicle structures can maintain their current safety levels while using less material. There are several commercially available grades of AHSS, such as dual-phase steel , which

9085-602: The home has been subdivided into parcels, but the Franciscan Sisters have used the mansion as a retreat since the early 1970s. Pinecroft was added to the National Register of Historic Places in 2008. Seagate, also known as the Bay Club, along Sarasota Bay in the southwest corner of Manatee County, Florida , was a Mediterranean Revival-style home designed for Crosley by New York City and Sarasota architect George Albree Freeman Jr. , with Ivo A. de Minicis ,

9200-439: The main production route. At the end of 2008, the steel industry faced a sharp downturn that led to many cut-backs. In 2021, it was estimated that around 7% of the global greenhouse gas emissions resulted from the steel industry. Reduction of these emissions are expected to come from a shift in the main production route using cokes, more recycling of steel and the application of carbon capture and storage technology. Steel

9315-767: The many radio transceivers that Crosley's company manufactured during the war, including 150,000 BC-654s , a receiver and transmitter that was the main component of the SCR-284 radio set. The Crosley Corporation also made components for Walkie-talkie transceivers and IFR radio guidance equipment, among other products. In addition, Crosley's also manufactured field kitchens, air supply units for Sperry S-1 bombsites (used in B-24 bombers ), air conditioning units, Martin PBM Mariner bow- gun turrets , and quarter-ton trailers. Gun turrets for PT boats and B-24 and B-29 bombers were

9430-450: The most part, however, p-block elements such as sulphur, nitrogen , phosphorus , and lead are considered contaminants that make steel more brittle and are therefore removed from steel during the melting processing. The density of steel varies based on the alloying constituents but usually ranges between 7,750 and 8,050 kg/m (484 and 503 lb/cu ft), or 7.75 and 8.05 g/cm (4.48 and 4.65 oz/cu in). Even in

9545-503: The original Crosley automobile. Crosley had nearly 5,000 of these engines on hand when civilian automobile production ceased in 1942, and hoped to put them to use in his miniature war machines. One vehicle prototype was the 1942/1943 Crosley CT-3 "Pup," a lightweight, single-passenger, four-wheel-drive vehicle that was transportable and air-droppable from a C-47 Skytrain . Six of the 1,125-pound (510 kg) Pups were deployed overseas after undergoing tests at Fort Benning , Georgia , but

9660-436: The oxidation rate of iron increases rapidly beyond 800 °C (1,470 °F), it is important that smelting take place in a low-oxygen environment. Smelting, using carbon to reduce iron oxides, results in an alloy ( pig iron ) that retains too much carbon to be called steel. The excess carbon and other impurities are removed in a subsequent step. Other materials are often added to the iron/carbon mixture to produce steel with

9775-449: The product but only locally relieves strains and stresses locked up within the material. Annealing goes through three phases: recovery , recrystallization , and grain growth . The temperature required to anneal a particular steel depends on the type of annealing to be achieved and the alloying constituents. Quenching involves heating the steel to create the austenite phase then quenching it in water or oil . This rapid cooling results in

9890-759: The production methods of creating wootz steel from the Chera Dynasty Tamils of South India by the 5th century AD. In Sri Lanka, this early steel-making method employed a unique wind furnace, driven by the monsoon winds, capable of producing high-carbon steel. Since the technology was acquired from the Tamilians from South India, the origin of steel technology in India can be conservatively estimated at 400–500 BC. The manufacture of wootz steel and Damascus steel , famous for its durability and ability to hold an edge, may have been taken by

10005-473: The project. Without government security clearance, Crosley was prohibited from entering the area of his plant that manufactured the fuzes and did not know what top-secret products it produced until the war's end. Production was directed and supervised by Lewis M. Clement, the Crosley company's vice-president of engineering. James V. Forrestal , U.S. Secretary of the Navy said: "The proximity fuze has helped blaze

10120-400: The retreat in 1939, he rarely used the house. During World War II , Crosley allowed the U.S. Army Air Corps to use the retreat for its airmen training at the nearby Sarasota Army Air Base. Crosley sold his estate property in 1947 to the D and D Corporation. Mabel and Freeman Horton purchased the property in 1948 and owned Seagate for nearly forty years. The house and 45 acres (18 hectares)

10235-477: The solid-state, by heating the ore in a charcoal fire and then welding the clumps together with a hammer and in the process squeezing out the impurities. With care, the carbon content could be controlled by moving it around in the fire. Unlike copper and tin, liquid or solid iron dissolves carbon quite readily. All of these temperatures could be reached with ancient methods used since the Bronze Age . Since

10350-711: The spoilers were tested (in May 1930) as a lateral control device. Five Moonbeams airplanes were produced. The first was a three-place parasol; next, a four-place, high wing cabin model; third and fourth were one place high wings. Due to the Great Depression, planned production did not take place. N147N is the last of these planes in existence. It is housed at the Aviation Museum of Kentucky in Lexington Kentucky . In 1933 Frenchman Henri Mignet designed

10465-454: The state of Indiana for use as a wildlife preserve . Bull Island, South Carolina, became part of a national wildlife refuge . It is not known when Crosley sold his vacation retreat in Ontario, Canada. Crosley died on March 28, 1961, of a heart attack at the age of 74. He is buried at Spring Grove Cemetery in Cincinnati. Crosley liked to label himself "the man with 50 jobs in 50 years,"

10580-467: The station's technical and commercial advantages with its 500-kilowatt broadcasts. During World War II , WLW resumed its powerful, 500-kilowatt transmissions in cooperation with the U.S. government. The 500-kilowatt transmitter was crated for shipment to Asia, but the war ended before it was shipped. WLW's engineers also built high-power shortwave transmitters on a site about 25 miles (40 km) north of Cincinnati. Crosley Broadcasting, under contract to

10695-401: The steel. At the very high cooling rates produced by quenching, the carbon has no time to migrate but is locked within the face-centred austenite and forms martensite . Martensite is a highly strained and stressed, supersaturated form of carbon and iron and is exceedingly hard but brittle. Depending on the carbon content, the martensitic phase takes different forms. Below 0.2% carbon, it takes on

10810-561: The steel. The early modern crucible steel industry resulted from the invention of Benjamin Huntsman in the 1740s. Blister steel (made as above) was melted in a crucible or in a furnace, and cast (usually) into ingots. The modern era in steelmaking began with the introduction of Henry Bessemer 's process in 1855, the raw material for which was pig iron. His method let him produce steel in large quantities cheaply, thus mild steel came to be used for most purposes for which wrought iron

10925-402: The team's financial position was greatly improved. Crosley also approved baseball's first regularly-scheduled play-by-play broadcasts of all scheduled games on his local station, WSAI , whose call letters stood for "sports and information," and later on WLW. The coverage increased attendance so much that within five years all 16 major league teams had radio broadcasts of every scheduled game. On

11040-561: The technology of that time, such qualities were produced by chance rather than by design. Natural wind was used where the soil containing iron was heated by the use of wood. The ancient Sinhalese managed to extract a ton of steel for every 2 tons of soil, a remarkable feat at the time. One such furnace was found in Samanalawewa and archaeologists were able to produce steel as the ancients did. Crucible steel , formed by slowly heating and cooling pure iron and carbon (typically in

11155-683: The trail to Japan. Without the protection this ingenious device has given the surface ships of the Fleet, our westward push could not have been so swift and the cost in men and ships would have been immeasurably greater." George S. Patton , Commanding General of the Third Army, remarked: "The funny fuze won the Battle of the Bulge for us. I think that when all armies get this shell we will have to devise some new method of warfare." Also of significance were

11270-476: The upper carbon content of steel, beyond which is cast iron. When carbon moves out of solution with iron, it forms a very hard, but brittle material called cementite (Fe 3 C). When steels with exactly 0.8% carbon (known as a eutectoid steel), are cooled, the austenitic phase (FCC) of the mixture attempts to revert to the ferrite phase (BCC). The carbon no longer fits within the FCC austenite structure, resulting in an excess of carbon. One way for carbon to leave

11385-428: The world's steel in 2023. Further refinements in the process, such as basic oxygen steelmaking (BOS), largely replaced earlier methods by further lowering the cost of production and increasing the quality of the final product. Today more than 1.6 billion tons of steel is produced annually. Modern steel is generally identified by various grades defined by assorted standards organizations . The modern steel industry

11500-586: Was Pinecroft , an estate home built in 1929 in the Mount Airy section of Cincinnati, Ohio. He also had Seagate , a winter retreat in Manatee County, Florida , built for his first wife, Gwendolyn. In addition, Crosley owned several vacation properties. Pinecroft, Crosley's two-story, 13,334-square-foot (1,238.8 m), Tudor Revival -style mansion and other buildings on his estate in Mount Airy

11615-553: Was 1948, when it sold 24,871 cars, but sales began to fall in 1949. Adding the Crosley "Hotshot" sports model and an all-purpose vehicle called the "Farm-O-Road" model in 1950 did not stop the decline. Only 1,522 Crosley vehicles were sold in 1952. Crosley sold about 84,000 cars before closing down the operation on July 3, 1952. The Crosley plant in Marion, Indiana, was sold to the General Tire and Rubber Company . Crosley's company

11730-477: Was added to the National Register of Historic Places on January 21, 1983, by a subsequent owner who intended to build an exclusive condominium project on the site using the historic house as a clubhouse, but the project failed when the economy faltered shortly thereafter. Kafi Benz , the Friends of Seagate Inc. , a nonprofit corporation, and local residents saved Seagate from commercial development, and initiated

11845-549: Was also the owner of luxury yachts with powerful engines, and an active fisherman who participated in celebrated tournaments in Sarasota, Florida. He served as president of the Sarasota area's Anglers Club and was a founder of the American Wildlife Institute. Crosley owned several sports, hunting, and fishing camps: Nikassi, an island retreat in Ontario, Canada; Bull Island off the coast of South Carolina;

11960-424: Was an early non-electrical refrigeration device. The unit used an evaporative cycle to create cold, and had no moving parts. The dumbbell shaped unit was "charged" by heating one end with a small kerosene heater. Crosley's company sold several hundred thousand Icyball units before discontinuing its manufacture in the late 1930s. In 1932 Crosley had the idea of putting shelves in the doors of refrigerators. He patented

12075-558: Was designed by New York -based architect Dwight James Baum and built in 1928–29. Crosley's daughter, Marth Page (Crosley) Kess, sold the property after her father's death in 1961, and the Franciscan Sisters of the Poor acquired the property in 1963. Saint Francis Hospital bought a portion of the property north of the Crosley mansion in 1971 and built a hospital, which was renamed Mercy Hospitals West in 2001. The land surrounding

12190-718: Was developed in Southern India and Sri Lanka in the 1st millennium BCE. Metal production sites in Sri Lanka employed wind furnaces driven by the monsoon winds, capable of producing high-carbon steel. Large-scale wootz steel production in India using crucibles occurred by the sixth century BC, the pioneering precursor to modern steel production and metallurgy. High-carbon steel was produced in Britain at Broxmouth Hillfort from 490–375 BC, and ultrahigh-carbon steel

12305-509: Was formerly used. The Gilchrist-Thomas process (or basic Bessemer process ) was an improvement to the Bessemer process, made by lining the converter with a basic material to remove phosphorus. Another 19th-century steelmaking process was the Siemens-Martin process , which complemented the Bessemer process. It consisted of co-melting bar iron (or steel scrap) with pig iron. These methods of steel production were rendered obsolete by

12420-538: Was his ability to invent new products, while his brother, Lewis M. Crosley , excelled in business. Lewis also became head of Crosley's manufacturing operations. In 1920, Crosley first selected independent local dealers as the best way to take his products to market. He insisted that all sellers of his products must give the consumer the best in parts, service, and satisfaction. Always sensitive to consumers, his products were often less expensive than other name brands, but were guaranteed. Crosley's " money back guarantee " set

12535-416: Was involved in war production planning before December 1941, and like the rest of American industry, it focused on manufacturing war-related products during World War II. The company made a variety of products, including proximity fuzes , experimental military vehicles, radio transceivers , and gun turrets , among other items. The most significant Crosley's wartime production was the proximity fuze , which

12650-415: Was manufactured by several companies for the military. Crosley's facilities produced more fuzes than any other manufacturer and made several production design innovations. The fuze is widely considered the third most important product development of the war years, ranking behind the atomic bomb and radar . Ironically, Crosley himself did not have U.S. government security clearance and was not involved with

12765-488: Was marketing the "Roamio," with "screen grid neutrodyne power speaker" for automotive use. Priced at $ 75, before accessories and installation, it was claimed to be able to receive thirty stations with no signal strength change. Once Crosley established himself as a radio manufacturer, he decided to expand into broadcasting as a way to encourage consumers to purchase more radios. In 1921, soon after he built his first radios, Crosley began experimental broadcasts from his home with

12880-498: Was possibly the only major one eventually to elude him. In the years leading up to World War II , Crosley developed new products that included reviving one of his earliest endeavors at automobile design and manufacturing. In 1939, when Crosley introduced the low-priced Crosley automobiles, he broke with tradition and sold his cars through independent appliance, hardware, and department stores instead of automobile dealerships. The first Crosley Motors, Inc. automobile made its debut at

12995-438: Was produced globally, with 630,000,000 tonnes (620,000,000 long tons; 690,000,000 short tons) recycled. Modern steels are made with varying combinations of alloy metals to fulfil many purposes. Carbon steel , composed simply of iron and carbon, accounts for 90% of steel production. Low alloy steel is alloyed with other elements, usually molybdenum , manganese, chromium, or nickel, in amounts of up to 10% by weight to improve

13110-757: Was produced in the Netherlands from the 2nd-4th centuries AD. The Roman author Horace identifies steel weapons such as the falcata in the Iberian Peninsula , while Noric steel was used by the Roman military . The Chinese of the Warring States period (403–221 BC) had quench-hardened steel, while Chinese of the Han dynasty (202 BC—AD 220) created steel by melting together wrought iron with cast iron, thus producing

13225-526: Was selling advertising for Motor Vehicle , an automotive trade journal, but left in 1910 to move to Muncie, Indiana , where he worked in sales for the Inter-State Automobile Company and promoted its racing team. After returning to Cincinnati, Ohio, in 1911, Crosley sold and wrote advertisements for local businesses, but continued to pursue his interests in the automobile industry. He failed in early efforts to manufacture cars for

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