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Wire Rope
Steel wire rope (right hand lang lay) Wire rope is composed of as few as two solid, metal wires twisted into a helix that forms a composite ''rope'', in a pattern known as ''laid rope''. Larger diameter wire rope consists of multiple strands of such laid rope in a pattern known as ''cable laid''. Manufactured using an industrial machine known as a strander, the wires are fed through a series of barrels and spun into their final composite orientation. In stricter senses, the term ''wire rope'' refers to a diameter larger than , with smaller gauges designated cable or cords. Initially wrought iron wires were used, but today steel is the main material used for wire ropes. Historically, wire rope evolved from wrought iron chains, which had a record of mechanical failure. While flaws in chain links or solid steel bars can lead to catastrophic failure A catastrophic failure is a sudden and total failure from which recovery is impossible. Catastrophic failures often lead to cascadi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steel Wire Rope
Steel is an alloy of iron and carbon that demonstrates improved mechanical properties compared to the pure form of iron. Due to steel's high Young's modulus, elastic modulus, Yield (engineering), yield strength, Fracture, fracture strength and low raw material cost, steel is one of the most commonly manufactured materials in the world. Steel is used in structures (as concrete Rebar, reinforcing rods), in Bridge, bridges, infrastructure, Tool, tools, Ship, ships, Train, trains, Car, cars, Bicycle, bicycles, Machine, machines, Home appliance, electrical appliances, furniture, and Weapon, weapons. Iron is always the main element in steel, but other elements are used to produce various grades of steel demonstrating altered material, mechanical, and microstructural properties. Stainless steels, for example, typically contain 18% chromium and exhibit improved corrosion and Redox, oxidation resistance versus its carbon steel counterpart. Under atmospheric pressures, steels generally ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilhelm Albert (engineer)
Wilhelm Bedzheit Albert (24 January 1787 – 4 July 1846) was a German engineer and mining administrator, best remembered as the first person to record observations of metal fatigue. Albert was born in Hanover and showed early talent as a musician before embarking on the study of law in Göttingen in 1803. Experience in the Harz mountains awakened an interest in mining and, in 1806, he was appointed to the Mining and Forestry Office in Clausthal. By 1836 he was directing the entire mining industry of the Harz region. In 1829, he observed, studied and reported the failure of iron mine hoist chains arising from repeated small loadings, the first recorded account of metal fatigue. He built a machine which repeatedly loaded a chain. His finding was that fatigue was not associated with an accidental overload, but was dependent on load and the number of repetitions of load cycles. He invented a twisted steel cable, later known as an "Albert Rope", which was first used in the Claus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lehigh Coal & Navigation Company
Lehigh Coal & Navigation Company was a mining and transportation company headquartered in Mauch Chunk, now known as Jim Thorpe, Pennsylvania. The company operated from 1818 until its dissolution in 1964 and played an early and influential role in the Industrial Revolution in the United States, American Industrial Revolution. The company ultimately encompassed source industries, transport, and manufacturing, making it the first vertical integration, vertically integrated company in the United States.Archer B. HulbertThe Paths of Inland Commerce, A Chronicle of Trail, Road, and Waterway, Vol. 21, Chronicles of America, The Chronicles of America Series. Editor: Allen Johnson (1921) History 18th century In 1791, a hunter named Philip Ginter discovered anthracite, anthracite coal on Pisgah Mountain near present-day Summit Hill, Pennsylvania close to the border Schuylkill County, Pennsylvania, Schuylkill and Carbon County, Pennsylvania, Carbon counties. To verify this discovery, Phil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erskine Hazard
Erskine Hazard (1790-1865) and his partner Josiah White were industrialists who developed infrastructure projects in Pennsylvania and throughout the Northeastern United States, which proved influential in ushering in the Industrial Revolution in the United States, which served as a foundation for the rise of the United States as the world's foremost economic power. Partnership In 1810, Hazard and White opened a foundry and wire drawing plant on the falls of the Schuylkill River near Philadelphia in 1810.Bohlin Their first reputation establishing event was to build a small suspension bridge across the Schuylkill in order to better demonstrate their factory. When the U.S. President put an embargo in place on Bituminous coal imports from Great Britain in the tension prior to the War of 1812, the partners moved to secure an anthracite supply, which was then a barely known and unutilized commodity. The discovery of anthracite in eastern Pennsylvania was a largely accidental one by hu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Josiah White
Josiah White (1781–1850) was a Pennsylvania industrialist and key figure in the American Industrial Revolution. Career Pennsylvania navigation development White began early factory-centered mill production in 1808 in water powered ironworks near Philadelphia, along with his partner, Erskine Hazard, when they quickly found their first mill at East Falls, Pennsylvania, to be much too small. They then built a more elaborate and larger mill nearby to refine pig iron and produce cast iron artifacts and roll wrought bar iron goods, including nails and wire. The pair were especially influential after 1814 in helping make the American Industrial Revolution accelerate its building momentum by agitating for infrastructure investment, sponsoring two key river navigations and the nation's first long railway, and then after initial success, increasingly supplying an expanding part of the country's overall energy needs including that of other industrialists at a time when there occur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John A
Sir John Alexander Macdonald (10 or 11January 18156June 1891) was the first prime minister of Canada, serving from 1867 to 1873 and from 1878 until his death in 1891. He was the Fathers of Confederation, dominant figure of Canadian Confederation, and had a political career that spanned almost half a century. Macdonald was born in Scotland; when he was a boy his family immigrated to Kingston, Ontario, Kingston in the Province of Upper Canada (today in eastern Ontario). As a lawyer, he was involved in several high-profile cases and quickly became prominent in Kingston, which elected him in 1844 to the legislature of the Province of Canada. By 1857, he had become List of Joint Premiers of the Province of Canada, premier under the colony's unstable political system. In 1864, when no party proved capable of governing for long, he agreed to a proposal from his political rival, George Brown (Canadian politician), George Brown, that the parties unite in a Great Coalition to seek fede ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sholto Percy
Joseph Clinton Robertson (c.1787–1852), pseudonym Sholto Percy, was a Scottish patent agent, writer and periodical editor. He was a Political radicalism, political radical prominent in the early days of the working-class press in London, and in the debates within the Mechanics Institute movement. Early life He was born about 1787, the son of Rev. Joseph Robertson and Isobel Mathieson of Stewarton, Scotland. Rev. Joseph Robertson was Minister of Leith Wynd Chapel, Edinburgh, Scotland, but banished from Scotland for performing illegal marriages. ''The Mechanics' Magazine'' Robertson founded ''The Mechanics' Magazine'' in 1823, and edited and largely wrote it until the year of his death. It was a low-priced scientific weekly, and the first publication of its kind. To begin with he was in close alliance with Thomas Hodgskin: they had met in Edinburgh. It took advantage of a stamp tax exemption for technical weeklies not dealing in news. Robertson also devised a way of generating che ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Stirling Newall
Robert Stirling Newall FRS FRAS (27 May 1812 – 21 April 1889) was a Scottish engineer and astronomer. Life and work Born at Dundee on 27 May 1812, Newall began work in a local mercantile office before leaving for London, where, in the employment of Robert McCalmont, he worked on a series of experiments on the rapid generation of steam. He later spent two years promoting McCalmont's business interests in America. In 1838, whilst L. D. B. Gordon was studying at the Freiberg School of Mines, Germany, he visited the mines at Clausthal, and met Wilhelm Albert. Impressed by what he saw, he wrote to Robert urging him to "Invent a machine for making wire ropes". On receipt of Gordon's letter, Newall designed a wire rope machine, consisting of four strands and four wires to a strand. On Gordon's return to the UK in 1839, he formed a partnership with Robert and Charles Liddell, registering ''R. S. Newall and Company'' in Dundee. On 17 August 1840, Newall took out a patent for "ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Link Chain
A chain is a wikt:series#Noun, serial assembly of connected pieces, called links, typically made of metal, with an overall character similar to that of a rope in that it is flexible and curved in compression (physics), compression but line (geometry), linear, rigid, and load-bearing in tension (physics), tension. A chain may consist of two or more links. Chains can be classified by their design, which can be dictated by their use: * Those designed for lifting, such as when used with a Hoist (device), hoist; for pulling; or for securing, such as with a bicycle lock, have links that are torus-shaped, which make the chain flexible in two dimensions (the fixed third dimension being a chain's length). Small chains serving as Jewellery chain, jewellery are a mostly decorative analogue of such types. * Those designed for transferring power in machines have links designed to mesh with the teeth of the sprockets of the machine, and are flexible in only one dimension. They are known as r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Springer Publishing
Springer Publishing Company is an American publishing company of academic journals and books, focusing on the fields of nursing, gerontology, psychology, social work, counseling, public health, and rehabilitation (neuropsychology). It was established in 1951 by Bernhard Springer, a great-grandson of Julius Springer, and is based in Midtown Manhattan, New York City. History Springer Publishing Company was founded in 1950 by Bernhard Springer, the Berlin-born great-grandson of Julius Springer, who founded Springer Science+Business Media, Springer-Verlag (now Springer Science+Business Media). Springer Publishing's first landmark publications included ''Livestock Health Encyclopedia'' by R. Seiden and the 1952 ''Handbook of Cardiology for Nurses''. The company's books soon branched into other fields, including medicine and psychology. Nursing publications grew rapidly in number, as Modell's ''Drugs in Current Use'', a small annual paperback, sold over 150,000 copies over several edi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Encyclopædia Britannica
The is a general knowledge, general-knowledge English-language encyclopaedia. It has been published by Encyclopædia Britannica, Inc. since 1768, although the company has changed ownership seven times. The 2010 version of the 15th edition, which spans 32 volumes and 32,640 pages, was the last printed edition. Since 2016, it has been published exclusively as an online encyclopedia, online encyclopaedia. Printed for 244 years, the ''Britannica'' was the longest-running in-print encyclopaedia in the English language. It was first published between 1768 and 1771 in Edinburgh, Scotland, in three volumes. The encyclopaedia grew in size; the second edition was 10 volumes, and by its fourth edition (1801–1810), it had expanded to 20 volumes. Its rising stature as a scholarly work helped recruit eminent contributors, and the 9th (1875–1889) and Encyclopædia Britannica Eleventh Edition, 11th editions (1911) are landmark encyclopaedias for scholarship and literary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germany
Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total population of over 84 million in an area of , making it the most populous member state of the European Union. It borders Denmark to the north, Poland and the Czech Republic to the east, Austria and Switzerland to the south, and France, Luxembourg, Belgium, and the Netherlands to the west. The Capital of Germany, nation's capital and List of cities in Germany by population, most populous city is Berlin and its main financial centre is Frankfurt; the largest urban area is the Ruhr. Settlement in the territory of modern Germany began in the Lower Paleolithic, with various tribes inhabiting it from the Neolithic onward, chiefly the Celts. Various Germanic peoples, Germanic tribes have inhabited the northern parts of modern Germany since classical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
