Lucarne
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Lucarne
In general architecture a lucarne is a term used to describe a dormer window. The original term french: lucarne refers to a dormer window, usually set into the middle of a roof although it can also apply to a façade lucarne, where the gable of the lucarne is aligned with the face of the wall. This general meaning is also preserved in British use, particularly for small windows into unoccupied attic or spire spaces. Nikolaus Pevsner gives its meaning as "a small gabled opening in a roof or a spire". In industrial architecture the term lucarne is used to describe a feature of a warehouse, mill or factory where a window or opening high up on an outside wall supports a hoist above doors on the floors below. The simplest lucarne is no more than the extension of a roof beyond a gable wall, with a ridge timber strong enough to support a hoist. A gin wheel on this beam can provide a simple rope hoist, sufficient to lift a sack of grain. Any greater weights than this are likely to nee ...
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:en:dormer
A dormer is a roofed structure, often containing a window, that projects vertically beyond the plane of a pitched roof. A dormer window (also called ''dormer'') is a form of roof window. Dormers are commonly used to increase the usable space in a loft and to create window openings in a roof plane. A dormer is often one of the primary elements of a loft conversion. As a prominent element of many buildings, different types of dormer have evolved to complement different styles of architecture. When the structure appears on the spires of churches and cathedrals, it is usually referred to as a ''lucarne''. History The word ''dormer'' is derived from the Middle French , meaning "sleeping room", as dormer windows often provided light and space to attic-level bedrooms. One of the earliest uses of dormers was in the form of lucarnes, slender dormers which provided ventilation to the spires of English Gothic churches and cathedrals. An early example are the lucarnes of the spire of Ch ...
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Converted Warehouses, Westmoreland, Bath - Geograph
Conversion or convert may refer to: Arts, entertainment, and media * "Conversion" (''Doctor Who'' audio), an episode of the audio drama ''Cyberman'' * "Conversion" (''Stargate Atlantis''), an episode of the television series * "The Conversion" (''The Outer Limits''), a 1995 episode of the television series Business and marketing * Conversion funnel, the path a consumer takes through the web toward or near a desired action or conversion * Conversion marketing, when a website's visitors take a desired action * Converting timber to commercial lumber Computing, science, and technology * Conversion of units, conversion between different units of measurement Computing and telecommunication * CHS conversion of data storage, mapping cylinder/head/sector tuples to linear base address * CPS conversion, in computer science, changing the form of continuation-passing * Code conversion, in telecommunication, converting from one code to another * convert (command), a command-line utility ...
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Former Warehouse, College Hill, Shrewsbury - Geograph
A former is an object, such as a template, gauge or cutting die, which is used to form something such as a boat's hull. Typically, a former gives shape to a structure that may have complex curvature. A former may become an integral part of the finished structure, as in an aircraft fuselage, or it may be removable, being using in the construction process and then discarded or re-used. Aircraft formers Formers are used in the construction of aircraft fuselage, of which a typical fuselage has a series from the nose to the empennage, typically perpendicular to the longitudinal axis of the aircraft. The primary purpose of formers is to establish the shape of the fuselage and reduce the column length of stringers to prevent instability. Formers are typically attached to longerons, which support the skin of the aircraft. The "former-and-longeron" technique (also called stations and stringers) was adopted from boat construction, and was typical of light aircraft built until the ...
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Ivory House, St
Ivory is a hard, white material from the tusks (traditionally from elephants) and teeth of animals, that consists mainly of dentine, one of the physical structures of teeth and tusks. The chemical structure of the teeth and tusks of mammals is the same, regardless of the species of origin, but ivory contains structures of mineralised collagen. The trade in certain teeth and tusks other than elephant is well established and widespread; therefore, "ivory" can correctly be used to describe any mammalian teeth or tusks of commercial interest which are large enough to be carved or scrimshawed. Besides natural ivory, ivory can also be produced synthetically, hence (unlike natural ivory) not requiring the retrieval of the material from animals. Tagua nuts can also be carved like ivory. The trade of finished goods of ivory products has its origins in the Indus Valley. Ivory is a main product that is seen in abundance and was used for trading in Harappan civilization. Finished ivory pr ...
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Former Warehouse, Worcester - Geograph
A former is an object, such as a template, gauge or cutting die, which is used to form something such as a boat's hull. Typically, a former gives shape to a structure that may have complex curvature. A former may become an integral part of the finished structure, as in an aircraft fuselage, or it may be removable, being using in the construction process and then discarded or re-used. Aircraft formers Formers are used in the construction of aircraft fuselage, of which a typical fuselage has a series from the nose to the empennage, typically perpendicular to the longitudinal axis of the aircraft. The primary purpose of formers is to establish the shape of the fuselage and reduce the column length of stringers to prevent instability. Formers are typically attached to longerons, which support the skin of the aircraft. The "former-and-longeron" technique (also called stations and stringers) was adopted from boat construction, and was typical of light aircraft built until the ...
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Redcliffe Wharf 2006
Redcliffe may refer to: Places England * Redcliffe, Bristol, a district of the city *Redcliffe College, a Bible college in Gloucester, England Queensland, Australia *Redcliffe Peninsula, a peninsula and suburban region in the Brisbane metropolitan area **Redcliffe Dolphins, a rugby league club **Redcliffe, Queensland, the central suburb of Redcliffe City **City of Redcliffe, the former Local Government covering Redcliffe **Electoral district of Redcliffe Western Australia *Redcliffe, Western Australia U.S.A. * Redcliffe Plantation State Historic Site, listed on the NRHP in South Carolina People * John Redcliffe-Maud (1906–1982), British civil servant and diplomat to South Africa, husband of Jean Redcliffe-Maud * Jean Redcliffe-Maud (1904–1993), British pianist and author, wife of John Redcliffe-Maud * Stratford Canning, 1st Viscount Stratford de Redcliffe (1786–1880), British diplomat, ambassador to the Ottoman Porte See also *Redcliff (other) *Radcliffe (di ...
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Cantilever
A cantilever is a rigid structural element that extends horizontally and is supported at only one end. Typically it extends from a flat vertical surface such as a wall, to which it must be firmly attached. Like other structural elements, a cantilever can be formed as a beam, plate, truss, or slab. When subjected to a structural load at its far, unsupported end, the cantilever carries the load to the support where it applies a shear stress and a bending moment. Cantilever construction allows overhanging structures without additional support. In bridges, towers, and buildings Cantilevers are widely found in construction, notably in cantilever bridges and balconies (see corbel). In cantilever bridges, the cantilevers are usually built as pairs, with each cantilever used to support one end of a central section. The Forth Bridge in Scotland is an example of a cantilever truss bridge. A cantilever in a traditionally timber framed building is called a jetty or forebay. In the southe ...
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Chain Hoist
A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium. The most familiar form is an elevator, the car of which is raised and lowered by a hoist mechanism. Most hoists couple to their loads using a lifting hook. Today, there are a few governing bodies for the North American overhead hoist industry which include the Hoist Manufactures Institute, ASME, and the Occupational Safety and Health Administration. HMI is a product counsel of the Material Handling Industry of America consisting of hoist manufacturers promoting safe use of their products. Types The word “hoist” is used to describe many different types of equipment that lift and lower loads. For example, many people use “hoist” to describe an elevator. The information contained here pertains specially to overhead, cons ...
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Block And Tackle
A block and tackle or only tackle is a system of two or more pulleys with a rope or cable threaded between them, usually used to lift heavy loads. The pulleys are assembled to form blocks and then blocks are paired so that one is fixed and one moves with the load. The rope is threaded through the pulleys to provide mechanical advantage that amplifies the force applied to the rope. Hero of Alexandria described cranes formed from assemblies of pulleys in the first century. Illustrated versions of Hero's ''Mechanica'' (a book on raising heavy weights) show early block and tackle systems. Overview A block is a set of pulleys or sheaves mounted on a single frame. An assembly of blocks with a rope threaded through the pulleys is called tackle. The process of threading ropes or cables through blocks is called "reeving", and a threaded block and tackle is said to have been "rove". A block and tackle system amplifies the tension force in the rope to lift heavy loads. They are common ...
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Gin Pole
A gin pole is a supported pole that uses a pulley or block and tackle on its upper end to lift loads. The lower end is braced or set in a shallow hole and positioned so the upper end lies above the object to be lifted. The pole (also known as a ''mast'', ''boom'', or ''spar'') is secured with three or more guy-wires. These are manipulated to move the load laterally, with up and down controlled by the pulley or block. In tower construction, a gin pole can also be “jumped” up the completed sections of a tower to lift the higher sections into place. The gin pole is derived from a gyn, and considered a form of derrick, called a standing derrick or pole derrick, distinguished from sheers (or ''shear legs'') by having a single boom rather than a two-legged one. Gin poles are also used to raise loads above structures too tall to reach with a crane, such as placing an antenna Antenna ( antennas or antennae) may refer to: Science and engineering * Antenna (radio), also know ...
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Factory
A factory, manufacturing plant or a production plant is an industrial facility, often a complex consisting of several buildings filled with machinery, where workers manufacture items or operate machines which process each item into another. They are a critical part of modern economic production, with the majority of the world's goods being created or processed within factories. Factories arose with the introduction of machinery during the Industrial Revolution, when the capital and space requirements became too great for cottage industry or workshops. Early factories that contained small amounts of machinery, such as one or two spinning mules, and fewer than a dozen workers have been called "glorified workshops". Most modern factories have large warehouses or warehouse-like facilities that contain heavy equipment used for assembly line production. Large factories tend to be located with access to multiple modes of transportation, some having rail, highway and water loading ...
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Hoist (device)
A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium. The most familiar form is an elevator, the car of which is raised and lowered by a hoist mechanism. Most hoists couple to their loads using a lifting hook. Today, there are a few governing bodies for the North American overhead hoist industry which include the Hoist Manufactures Institute, ASME, and the Occupational Safety and Health Administration. HMI is a product counsel of the Material Handling Industry of America consisting of hoist manufacturers promoting safe use of their products. Types The word “hoist” is used to describe many different types of equipment that lift and lower loads. For example, many people use “hoist” to describe an elevator. The information contained here pertains specially to overhead, cons ...
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