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Clevite Industries
: ''For the radioactive mineral, see Cleveite.'' Clevite, Inc. was a Cleveland, Ohio based manufacturing company, founded as the Cleveland Graphite Bronze Company. The company was a leading producer of Babbit bearings and a significant US government defense contractor. The bearings were licensed in Britain to Vandervell Products Ltd; W. A. Robotham of Rolls-Royce said that "it was an exceedingly difficult task for Tony Vandervell ... knowing the American company well". In 1952 the Cleveland Graphite Bronze Company absorbed the Brush Development Company and Brush Labs in a merger. In 1953 it acquired 51% of Transistor Products Inc., and with other acquisitions such as the German ''Intermetall'' in 1955 (a company founded in 1952 by pioneering German physicist and developer of the first "European" transistor Herbert Mataré, and subsequently sold to telecommunications giant ITT in 1965) developed a semiconductor division. By 1959, over one-third of Clevite's sales were in e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cleveite
Cleveite is an impure radioactive variety of uraninite containing uranium, found in Norway. It has the composition UO2 with about 10% of the uranium substituted by rare-earth elements. It was named after Swedish chemist Per Teodor Cleve. Cleveite was the first known terrestrial source of helium, which is created over time by alpha decay of the uranium and accumulates trapped (occluded) within the mineral. The first sample of helium was obtained by William Ramsay in 1895 when he treated a sample of the mineral with acid.https://archive.org/details/becquerelraysthe00raylrich Rayleigh, Robert and John Strutt, 1904, The Becquerel rays and the properties of radium, London, E. Arnold. Cleve and Abraham Langlet succeeded in isolating helium from cleveite at about the same time. Yttrogummite is a variant of cleveite also found in Norway. See also * List of minerals * List of minerals named after people This is a list of minerals named after people. The chemical composition of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cleveland
Cleveland is a city in the U.S. state of Ohio and the county seat of Cuyahoga County. Located along the southern shore of Lake Erie, it is situated across the Canada–U.S. maritime border and approximately west of the Ohio-Pennsylvania state border. Cleveland is the most populous city on Lake Erie, the second-most populous city in Ohio, and the 53rd-most populous city in the U.S. with a population of 372,624 in 2020. The city anchors the Cleveland metropolitan area, the 33rd-largest in the U.S. at 2.18 million residents, as well as the larger Cleveland– Akron– Canton combined statistical area with 3.63 million residents. Cleveland was founded in 1796 near the mouth of the Cuyahoga River as part of the Connecticut Western Reserve in modern-day Northeast Ohio by General Moses Cleaveland, after whom the city was named. The city's location on the river and the lake shore allowed it to grow into a major commercial and industrial metropolis by the late 19th century, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ohio
Ohio ( ) is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Lake Erie to the north, Pennsylvania to the east, West Virginia to the southeast, Kentucky to the southwest, Indiana to the west, and Michigan to the northwest. Of the 50 List of states and territories of the United States, U.S. states, it is the List of U.S. states and territories by area, 34th-largest by area. With a population of nearly 11.9 million, Ohio is the List of U.S. states and territories by population, seventh-most populous and List of U.S. states and territories by population density, tenth-most densely populated state. Its List of capitals in the United States, capital and List of cities in Ohio, most populous city is Columbus, Ohio, Columbus, with the two other major Metropolitan statistical area, metropolitan centers being Cleveland and Cincinnati, alongside Dayton, Ohio, Dayton, Akron, Ohio, Akron, and Toledo, Ohio, Toledo. Ohio is nicknamed th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Babbitt (alloy)
Babbitt metal or bearing metal is any of several alloys used for the bearing surface in a plain bearing. The original Babbitt alloy was invented in 1839 by Isaac Babbitt in Taunton, Massachusetts, United States. He disclosed one of his alloy recipes but kept others as trade secrets.Isaac Babbitt"Mode of making boxes for axles and gudgeons," U.S. patent no. 1,252 (issued: July 17, 1839). Babbitt did not patent his alloy, although he does state its formulation: "The inner parts of the boxes are to be lined with any of the harder kinds of composition known under the names of britannia metal or pewter, of which block tin is the basis. An excellent compound for this purpose I have prepared by taking about 50 parts of tin, five of antimony, and one of copper, but I do not intend to confine myself to this particular composition." Other formulations were developed later.. Like other terms whose eponymous origin is long-since deemphasized (such as ''diesel engine'' or ''eustachian tube' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bearing (mechanical)
A ball bearing A bearing is a machine element that constrains relative motion to only the desired motion and reduces friction between moving parts. The design of the bearing may, for example, provide for free linear movement of the moving part or for free rotation around a fixed axis; or, it may prevent a motion by controlling the vectors of normal forces that bear on the moving parts. Most bearings facilitate the desired motion by minimizing friction. Bearings are classified broadly according to the type of operation, the motions allowed, or the directions of the loads (forces) applied to the parts. The term "bearing" is derived from the verb " to bear"; a bearing being a machine element that allows one part to bear (i.e., to support) another. The simplest bearings are bearing surfaces, cut or formed into a part, with varying degrees of control over the form, size, roughness, and location of the surface. Other bearings are separate devices installed into a machine or mach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tony Vandervell
Guy Anthony "Tony" Vandervell (8 September 1898 – 10 March 1967) was a British industrialist, motor racing financier, and founder of the Vanwall Formula One racing team. Motorsport Vandervell was the son of Charles Vandervell, founder of CAV, later Lucas CAV. He made his fortune from the production of Babbitt ''Thin-Wall'' bearings by his company ''Vandervell Products'', under licence from the American Cleveland Graphite Bronze Company. W. A. Robotham first met him about 1934 when Rolls-Royce was having bearing problems on Bentleys. He said that Tony came across publicly as a "tough nut ... spoiling for a fight" and his marital problems attracted publicity, but he was a true friend who would always come to the aid of staff as well as a successful industrialist of the sort that Britain could use more of. However he seemed to have a "persecution complex" and fell out with some friends. Having raced both motorcycles and cars a number of times in his younger days, soon afte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Arthur Robotham
William Arthur Robotham (26November 18991980) was a Rolls-Royce executive involved in the development of Rolls-Royce cars, during World War II of tanks and tank engines, and post-war of Rolls-Royce and Bentley cars complete with bodies and then of industrial petrol and diesel engines. Early career William Arthur " Rm" Robotham was born at Shardlow, Derby, William Blews Robotham (1863-1943), his father, was a solicitor and twice Mayor of Derby. Robotham joined Rolls-Royce as a premium apprentice in 1919. In four years the apprentices went to every department of the factory; although they did not have to undertake any study at a technical college, Robotham went to night school two or three evenings a week studying mathematics and engineering drawing. They were paid 5 s per week. He had an "old and slow" Rover motorcycle, and in weekends played golf, tennis or went on Sunday motorcycle outings with other apprentices. Rolls-Royce cars In 1923 after finishing his apprenticeshi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brush Development Company
Brush Development Company was a manufacturer of audio, phonographic products and magnetic recording technologies located in Cleveland, Ohio. It was absorbed into Clevite in 1952. History The business was founded in 1919 by Alfred L. Williams as Brush Labs to develop products that used piezoelectric crystals. Associates spun off the Brush Development Company in 1930 with piezoelectric phonograph pickups as its main product.http://www.audiotools.com/dead_b.html Audiotools: Defunct Audio Manufacturers Later it began manufacturing wire recorders, microphones, and speakers Speaker most commonly refers to: * Speaker, a person who produces speech * Loudspeaker, a device that produces sound ** Computer speakers Speaker, Speakers, or The Speaker may also refer to: Arts and entertainment * Speaker (song), "Speaker" ( .... During World War II, Vice President for Research Dr. Semi Joseph Begun was awarded a contract from the US National Defense Research Council for research on a sub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transistor
A transistor is a semiconductor device used to Electronic amplifier, amplify or electronic switch, switch electrical signals and electric power, power. It is one of the basic building blocks of modern electronics. It is composed of semiconductor material, usually with at least three terminal (electronics), terminals for connection to an electronic circuit. A voltage or Electric current, current applied to one pair of the transistor's terminals controls the current through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal. Some transistors are packaged individually, but many more in miniature form are found embedded in integrated circuits. Because transistors are the key active components in practically all modern electronics, many people consider them one of the 20th century's greatest inventions. Physicist Julius Edgar Lilienfeld proposed the concept of a field-effect transisto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herbert Mataré
Herbert Franz Mataré (22 September 1912 – 2 September 2011) was a German physicist. The focus of his research was the field of semiconductor research. His best-known work is the first functional European transistor, which he developed and patented together with Heinrich Welker in the vicinity of Paris in 1948, independent from the Bell Labs engineers who had developed the first transistor shortly before. Biography Born in Aachen, Mataré completed his studies in mathematics, chemistry, electrochemistry, nuclear physics, and solid-state physics at the Technical University of Aachen with degree "Diplom-Ingenieur" in Applied Physics. In addition, he studied mathematics, physics, and chemistry at the University of Geneva. In 1939 he joined the Telefunken research laboratory in Berlin. At that time it became obvious that the miniaturization of vacuum tubes had met a technical limit and that alternative solutions had to be sought using solid state circuits and the principles of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telecommunications
Telecommunication, often used in its plural form or abbreviated as telecom, is the transmission of information over a distance using electronic means, typically through cables, radio waves, or other communication technologies. These means of transmission may be divided into communication channels for multiplexing, allowing for a single medium to transmit several concurrent Session (computer science), communication sessions. Long-distance technologies invented during the 20th and 21st centuries generally use electric power, and include the electrical telegraph, telegraph, telephone, television, and radio. Early telecommunication networks used metal wires as the medium for transmitting signals. These networks were used for telegraphy and telephony for many decades. In the first decade of the 20th century, a revolution in wireless communication began with breakthroughs including those made in radio communications by Guglielmo Marconi, who won the 1909 Nobel Prize in Physics. Othe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ITT Inc
ITT Inc., formerly ITT Corporation, is an American worldwide manufacturing company based in Stamford, Connecticut. The company produces specialty components for the aerospace, transportation, energy and industrial markets. ITT's three businesses include Industrial Process, Motion Technologies, and Connect and Control Technologies. ITT has over 10,000 employees in more than 35 countries and serves customers in more than 100 countries. The company's long-standing brands include Goulds Pumps, Cannon connectors, KONI shock absorbers and Enidine energy absorption components. The company was founded in 1920 as International Telephone & Telegraph. During the 1960s and 1970s, under the leadership of CEO Harold Geneen, the company rose to prominence as the archetypal conglomerate, deriving its growth from hundreds of acquisitions in diversified industries. ITT divested its telecommunications assets in 1986. In 1995, the company sold off its hospitality portfolio, including Sherat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
