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Manhole Covers
A manhole cover or maintenance hole cover is a removable plate forming the lid over the opening of a manhole, an opening large enough for a person to pass through that is used as an access point for an underground vault or pipe. It is designed to prevent anyone or anything from falling in, and to keep out unauthorized persons and material. Manhole covers date back at least to the era of ancient Rome, which had sewer grates made from stone. Description Manhole covers are often made out of cast iron, concrete or a combination of the two. This makes them inexpensive, strong, and heavy, usually weighing more than . The weight helps to keep them in place when traffic passes over them, and makes it difficult for unauthorized people without suitable tools to remove them. Manhole covers may also be made from glass-reinforced plastic or other composite material (especially in Europe, or where cover theft is of concern). Because of law restricting acceptable manual handling weights, Eu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open Manhole And Cover Mid-City New Orleans
Open or OPEN may refer to: Music * Open (band), Australian pop/rock band * The Open (band), English indie rock band * ''Open'' (Blues Image album), 1969 * ''Open'' (Gotthard album), 1999 * ''Open'' (Cowboy Junkies album), 2001 * ''Open'' (YFriday album), 2001 * ''Open'' (Shaznay Lewis album), 2004 * ''Open'' (Jon Anderson EP), 2011 * ''Open'' (Stick Men album), 2012 * ''Open'' (The Necks album), 2013 * ''Open'', a 1967 album by Julie Driscoll, Brian Auger and the Trinity * ''Open'', a 1979 album by Steve Hillage * "Open" (Queensrÿche song) * "Open" (Mýa song) * "Open", the first song on The Cure album ''Wish'' Literature * ''Open'' (Mexican magazine), a lifestyle Mexican publication * ''Open'' (Indian magazine), an Indian weekly English language magazine featuring current affairs * ''OPEN'' (North Dakota magazine), an out-of-print magazine that was printed in the Fargo, North Dakota area of the U.S. * Open: An Autobiography, Andre Agassi's 2009 memoir Computin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flint Journal
''The Flint Journal'' is a quad-weekly newspaper based in Flint, Michigan, owned by Booth Newspapers, a subsidiary of Advance Publications. Published Tuesdays, Thursdays, Fridays and Sundays, it serves Genesee, Lapeer and Shiawassee Counties. As of February 2, 2012, it is headquartered in Downtown Flint at 540 S Saginaw St, Suite 504.Flint Journal opens new downtown offices, Harrison Street building remains open for customer service (with video) ''The Flint Journal'' via MLive.com, February 2, 2012 The paper and its sister publications '''' and ''< ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hamilton, Bermuda
The City of Hamilton, in Pembroke Parish, is the territorial capital of the British Overseas Territory of Bermuda. It is the territory's financial centre and a major port and tourist destination. Its population of 854 (2016) is one of the smallest of any capital city. History The history of Hamilton as a British city began in 1790 when the government of Bermuda set aside for its future seat, officially incorporated in 1793 by an Act of Parliament, and named for Governor Henry Hamilton. The colony's capital relocated to Hamilton from St George's in 1815. The city has been at the political and military heart of Bermuda ever since. Government buildings include the parliament building, the Government House to the north, the former Admiralty House of the Royal Navy to the west (both in Pembroke), and the British Army garrison headquarters at Prospect Camp to its east. The Town of Hamilton became a city in 1897, ahead of the consecration in 1911 of the Cathedral of the Most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nashua Telegraph
''The Telegraph'', for most of its existence known as the ''Nashua Telegraph'', is a daily newspaper in Nashua, New Hampshire. It was founded as the ''Nashua Daily Telegraph'' in 1869, although a weekly version dates back to 1832. Through the 2000s it was the second-largest newspaper in the state in terms of daily print circulation, behind the ''New Hampshire Union Leader'' of Manchester. In 2020 ''The Telegraph'' reduced its print run to Saturday only, when it produces a weekend edition under the ''Sunday Telegraph'' banner. In the announcement, the paper said it will continue to report news for its website every day. After being family-owned for a century, ''The Telegraph'' was bought in the 1980s by Independent Publications of Bryn Mawr, Pennsylvania, which owned several smaller daily and weekly newspapers around the United States as well as some other businesses. In 2005, the paper's owner bought the Cabinet Press, publisher of weekly newspapers based in nearby Milford, New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foundry
A foundry is a factory that produces metal castings. Metals are cast into shapes by melting them into a liquid, pouring the metal into a mold, and removing the mold material after the metal has solidified as it cools. The most common metals processed are aluminum and cast iron. However, other metals, such as bronze, brass, steel, magnesium, and zinc, are also used to produce castings in foundries. In this process, parts of desired shapes and sizes can be formed. Foundries are one of the largest contributors to the manufacturing recycling movement, melting and recasting millions of tons of scrap metal every year to create new durable goods. Moreover, many foundries use sand in their molding process. These foundries often use, recondition, and reuse sand, which is another form of recycling. Process In metalworking, casting involves pouring liquid metal into a mold, which contains a hollow cavity of the desired shape, and then allowing it to cool and solidify. The solidified pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Hampshire
New Hampshire is a U.S. state, state in the New England region of the northeastern United States. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Gulf of Maine to the east, and the Canadian province of Quebec to the north. Of the 50 U.S. states, New Hampshire is the List of U.S. states and territories by area, fifth smallest by area and the List of U.S. states and territories by population, tenth least populous, with slightly more than 1.3 million residents. Concord, New Hampshire, Concord is the state capital, while Manchester, New Hampshire, Manchester is the largest city. New Hampshire's List of U.S. state mottos, motto, "Live Free or Die", reflects its role in the American Revolutionary War; its state nickname, nickname, "The Granite State", refers to its extensive granite formations and quarries. It is well known nationwide for holding New Hampshire primary, the first primary (after the Iowa caucus) in the United States presidential election ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nashua, New Hampshire
Nashua is a city in southern New Hampshire, United States. At the 2020 United States census, 2020 census, it had a population of 91,322, the second-largest in northern New England after nearby Manchester, New Hampshire, Manchester. Along with Manchester, it is a county seat, seat of New Hampshire's most populous county, Hillsborough County, New Hampshire, Hillsborough. Built around the now-departed textile industry, in recent decades Nashua's economy has shifted to the financial services, high tech, and arms industry, defense industries as part of the Massachusetts Miracle, economic recovery that started in the 1980s in the Greater Boston region. Major private employers in the city include Nashua Corporation, BAE Systems, and Teradyne. The city also hosts two major regional medical centers, Southern New Hampshire Health System, Southern New Hampshire Medical Center and St. Joseph Hospital (Nashua, New Hampshire), St. Joseph Hospital. The South Nashua commercial district is a major ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nashua Triangular Manhole Cover
Nashua may refer to: * Nashaway people, Native American tribe living in 17th-century New England Places In Australia: * Nashua, New South Wales In the United States: * Nashua, California * Nashua, Iowa * Nashua, Minnesota * Nashua, Kansas City, Missouri * Nashua, Montana * Nashua, New Hampshire, the largest city with this name ** The Nashua River in New Hampshire and Massachusetts Other uses * The Nashua Corporation, American company based in Nashua, New Hampshire * Nashua (horse), Thoroughbred racehorse and 1955 Horse of the Year * Nashua Dolphins, South African cricket team * ''Nashua'' (YTB-774), United States Navy harbor tug See also *Nashua High School (other) *Nasua ''Nasua'' is a genus of coatis of the family Procyonidae. Two additional species of coatis, commonly known as mountain coatis, are placed in the genus ''Nasuella''. Characteristics ''Nasua'' differs from ''Nasuella'' in being larger and hav ... * Nassau (other) {{disambig, ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scrapped Manholes And Covers In Brastad
Scrap consists of recyclable materials, usually metals, left over from product manufacturing and consumption, such as parts of vehicles, building supplies, and surplus materials. Unlike waste, scrap has monetary value, especially recovered metals, and non-metallic materials are also recovered for recycling. Once collected, the materials are sorted into types — typically metal scrap will be crushed, shredded, and sorted using mechanical processes. Scrap recycling is important for creating a more sustainable economy or creating a circular economy, using significantly less energy and having far less environmental impact than producing metal from ore. Metal recycling, especially of structural steel, ships, used manufactured goods, such as vehicles and white goods, is a major industrial activity with complex networks of wrecking yards, sorting facilities and recycling plants. Processing Scrap metal originates both in business and residential environments. Typically a "scrapper" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lathe
A lathe () is a machine tool that rotates a workpiece about an axis of rotation to perform various operations such as cutting, sanding, knurling, drilling, deformation, facing, and turning, with tools that are applied to the workpiece to create an object with symmetry about that axis. Lathes are used in woodturning, metalworking, metal spinning, thermal spraying, parts reclamation, and glass-working. Lathes can be used to shape pottery, the best-known design being the Potter's wheel. Most suitably equipped metalworking lathes can also be used to produce most solids of revolution, plane surfaces and screw threads or helices. Ornamental lathes can produce three-dimensional solids of incredible complexity. The workpiece is usually held in place by either one or two ''centers'', at least one of which can typically be moved horizontally to accommodate varying workpiece lengths. Other work-holding methods include clamping the work about the axis of rotation using a chuck or col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Curve Of Constant Width
In geometry, a curve of constant width is a simple closed curve in the plane whose width (the distance between parallel supporting lines) is the same in all directions. The shape bounded by a curve of constant width is a body of constant width or an orbiform, the name given to these shapes by Leonhard Euler. Standard examples are the circle and the Reuleaux triangle. These curves can also be constructed using circular arcs centered at crossings of an arrangement of lines, as the involutes of certain curves, or by intersecting circles centered on a partial curve. Every body of constant width is a convex set, its boundary crossed at most twice by any line, and if the line crosses perpendicularly it does so at both crossings, separated by the width. By Barbier's theorem, the body's perimeter is exactly times its width, but its area depends on its shape, with the Reuleaux triangle having the smallest possible area for its width and the circle the largest. Every superset of a body o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reuleaux Triangle
A Reuleaux triangle is a curved triangle with constant width, the simplest and best known curve of constant width other than the circle. It is formed from the intersection of three circular disks, each having its center on the boundary of the other two. Constant width means that the separation of every two parallel supporting lines is the same, independent of their orientation. Because its width is constant, the Reuleaux triangle is one answer to the question "Other than a circle, what shape can a manhole cover be made so that it cannot fall down through the hole?" Reuleaux triangles have also been called spherical triangles, but that term more properly refers to triangles on the curved surface of a sphere. They are named after Franz Reuleaux,. a 19th-century German engineer who pioneered the study of machines for translating one type of motion into another, and who used Reuleaux triangles in his designs. However, these shapes were known before his time, for instance by the des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
