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Chamfer Mill
A chamfer or is a transitional edge between two faces of an object. Sometimes defined as a form of bevel, it is often created at a 45° angle between two adjoining right-angled faces. Chamfers are frequently used in machining, carpentry, furniture, formwork, concrete formwork, mirrors, and to facilitate assembly of many mechanical engineering designs. Terminology In machining the word ''bevel'' is not used to refer to a chamfer. Machinists use chamfers to "ease" otherwise sharp edges, both for safety and to prevent damage to the edges. A ''chamfer'' may sometimes be regarded as a type of bevel, and the terms are often used interchangeably. In furniture-making, a lark's tongue is a chamfer which ends short of a piece in a gradual outward curve, leaving the remainder of the edge as a right angle. Chamfers may be formed in either inside or outside adjoining faces of an object or room. By comparison, a ''fillet (mechanics), fillet'' is the rounding-off of an interior corner, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Larks Tongue
Larks are passerine birds of the family Alaudidae. Larks have a cosmopolitan distribution with the largest number of species occurring in Africa. Only a single species, the horned lark, occurs in North America, and only Horsfield's bush lark occurs in Australia. Habitats vary widely, but many species live in dry regions. When the word "lark" is used without specification, it often refers to the Eurasian skylark ''(Alauda arvensis)''. Taxonomy and systematics The family Alaudidae was introduced in 1825 by the Irish zoologist Nicholas Aylward Vigors as a subfamily Alaudina of the finch family Fringillidae. Larks are a well-defined family, partly because of the shape of their . They have multiple scutes on the hind side of their tarsi, rather than the single plate found in most songbirds. They also lack a pessulus, the bony central structure in the syrinx of songbirds. They were long placed at or near the beginning of the songbirds or oscines (now often called Passeri), just af ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corbel
In architecture, a corbel is a structural piece of stone, wood or metal jutting from a wall to carry a superincumbent weight, a type of bracket. A corbel is a solid piece of material in the wall, whereas a console is a piece applied to the structure. A piece of timber projecting in the same way was called a "tassel" or a "bragger" in England. The technique of corbelling, where rows of corbels deeply keyed inside a wall support a projecting wall or parapet, has been used since Neolithic (New Stone Age) times. It is common in medieval architecture and in the Scottish baronial style as well as in the vocabulary of classical architecture, such as the modillions of a Corinthian cornice. The corbel arch and corbel vault use the technique systematically to make openings in walls and to form ceilings. These are found in the early architecture of most cultures, from Eurasia to Pre-Columbian architecture. A console is more specifically an "S"-shaped scroll bracket in the classic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interference Fit
An interference fit, also known as a pressed fit or friction fit is a form of fastening between two ''tight'' fitting mating parts that produces a joint which is held together by friction after the parts are pushed together. Depending on the amount of interference, parts may be joined using a tap from a hammer or ''pressed'' together using a hydraulic ram. Critical components that must not sustain damage during joining may also be cooled significantly below room temperature to shrink one of the components before fitting. This method allows the components to be joined without force and producing a shrink fit interference when the component returns to normal temperature. Interference fits are commonly used with aircraft fasteners to improve the fatigue life of a joint. Introducing interference between parts These fits, though applicable to shaft and hole assembly, are more often used for bearing-housing or bearing-shaft assembly. Tightness of fit The tightness of fit is con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barcelona
Barcelona ( , , ) is a city on the coast of northeastern Spain. It is the capital and largest city of the autonomous community of Catalonia, as well as the second most populous municipality of Spain. With a population of 1.6 million within city limits,Barcelona: Población por municipios y sexo – Instituto Nacional de Estadística. (National Statistics Institute) its urban area extends to numerous neighbouring municipalities within the and is home to around 4.8 million people, making it the [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ponce Historic Zone
The Ponce Historic Zone (''La Zona Histórica de Ponce'') is a historic district in downtown Ponce, Puerto Rico, consisting of buildings and structures with architecture that date to the late nineteenth and early twentieth centuries. The zone goes by various names, including Ponce Tradicional (Traditional Ponce), Ponce Centro (Ponce Center), Ponce Histórico (Historic Ponce), and Distrito Histórico (Historic District). History Carmelo Rosario Natal has linked the origins of the Ponce Historic Zone to an event that took place on 8 June 1893. On that date, La Gaceta de Puerto Rico, the insular government's official periodical, published an edict of the Governor of Puerto Rico, Antonio Daban y Ramirez de Arellano, that mandated municipal authorities throughout the Island to divide, for fire control purposes, a town's urban center into three zones: stone-built, build with fire resistant materials, and built with combustible materials. No structure could be built, rebuilt or resto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sidewalk
A sidewalk (North American English), pavement (British English), footpath in Australia, India, New Zealand and Ireland, or footway, is a path along the side of a street, street, highway, terminals. Usually constructed of concrete, pavers, brick, stone, or asphalt, it is designed for pedestrians. A sidewalk is normally higher than the carriageway, roadway, and separated from it by a kerb (spelled "curb" in North America). There may also be a Road verge, planted strip between the sidewalk and the roadway and between the roadway and the adjacent land. In some places, the same term may also be used for a paved path, trail or footpath that is not next to a road, for example, a path through a park. Terminology The term "sidewalk" is preferred in most of North America. The term "pavement" is more common in the United Kingdom and other members of the Commonwealth of Nations, as well as parts of the Mid-Atlantic United States such as Philadelphia and parts of New Jersey. Many Commonwea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eixample
The Eixample (; ) is a district of Barcelona between the old city (Ciutat Vella) and what were once surrounding small towns (Sants, Gràcia, Sant Andreu, etc.), constructed in the 19th and early 20th centuries. Its population was 262,000 at the last census (2005). Architecture and design The Eixample is characterized by long straight streets, a strict grid pattern crossed by wide avenues, and square blocks with chamfered corners (named ''illes'' in Catalan, ''manzanas'' in Spanish). This was a visionary, pioneering design by Ildefons Cerdà, who considered traffic and transport along with sunlight and ventilation in coming up with his characteristic octagonal blocks, where the streets broaden at every intersection making for greater visibility, better ventilation and (today) some short-term parking areas. It also provided an area for horse-drawn wagons and carriages to easily turn around. The grid pattern remains as a hallmark of Barcelona, but many of his other provisions we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ponce, Puerto Rico
Ponce (, , , ) is both a city and a municipality on the southern coast of Puerto Rico. The city is the seat of the municipal government. Ponce, Puerto Rico's most populated city outside the San Juan metropolitan area, was founded on 12 August 1692Some publications/reporters have erroneously stated Ponce's date of founding as 12 December 1692 (see, for example, Jose Fernandez-Colon, The Associated Press, at "Noticias Online" on 24 January 2009, a''Noticias Puerto Rico.''Accessed 23 March 2019.) Another incorrect date sometimes found is 12 September 1692 (See, for example, Jorge L. Perez (El Nuevo Dia) and Jorge Figueroa (Ponce Municipal Historian), a''Historic Buildings and Structures in Ponce, Puerto Rico.'' at the text accompanying Drawing #20, titled "Tumba de los Bomberos". Puerto Rico Historic Buildings Drawings Society. 2019. Accessed 4 February 2019. See als''Mapa de Municipios y Barrios: Ponce, Memoria Numero 27.'' Gobierno del Estado Libre Asociado de Puerto Rico. Junta d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Curb (road)
A curb (North American English), or kerb (Commonwealth English except Canada; see spelling differences), is the edge where a raised sidewalk or road median/central reservation meets a street or other roadway. History Although curbs have been used throughout modern history, and indeed were present in ancient Pompeii, their widespread construction and use only began in the 18th century, as a part of the various movements towards city beautification that were attempted in the period. A series of Paving Acts in the 18th century, especially the 1766 Paving and Lighting Act, authorized the City of London Corporation to create footways along the streets of London, pave them with Purbeck stone (the thoroughfare in the middle was generally cobblestone) and raise them above street level with curbs forming the separation. The Corporation was also made responsible for the regular upkeep of the roads, including their cleaning and repair, for which they charged a tax from 1766. Previ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spain
, image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = ''Plus ultra'' (Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , image_map = , map_caption = , image_map2 = , capital = Madrid , coordinates = , largest_city = Madrid , languages_type = Official language , languages = Spanish language, Spanish , ethnic_groups = , ethnic_groups_year = , ethnic_groups_ref = , religion = , religion_ref = , religion_year = 2020 , demonym = , government_type = Unitary state, Unitary Parliamentary system, parliamentary constitutional monarchy , leader_title1 = Monarchy of Spain, Monarch , leader_name1 = Felipe VI , leader_title2 = Prime Minister of Spain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valencia
Valencia ( va, València) is the capital of the Autonomous communities of Spain, autonomous community of Valencian Community, Valencia and the Municipalities of Spain, third-most populated municipality in Spain, with 791,413 inhabitants. It is also the capital of the Province of Valencia, province of the same name. The wider urban area also comprising the neighbouring municipalities has a population of around 1.6 million, constituting one of the List of coastal settlements of the Mediterranean Sea, major urban areas on the European side of the Mediterranean Sea. It is located on the banks of the Turia (river), Turia, on the east coast of the Iberian Peninsula, at the Gulf of Valencia, north of the Albufera lagoon. Valencia was founded as a Roman Republic, Roman colony in 138 BC. Al-Andalus, Islamic rule and acculturation ensued in the 8th century, together with the introduction of new irrigation systems and crops. Crown of Aragon, Aragonese Christian conquest took place in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
