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Staircases
Stairs are a structure designed to bridge a large vertical distance between lower and higher levels by dividing it into smaller vertical distances. This is achieved as a diagonal series of horizontal platforms called steps which enable passage to the other level by stepping from one to another step in turn. Steps are very typically rectangular. Stairs may be straight, curved, or may consist of two or more straight pieces connected at angles. Types of stairs include staircases (also called stairways) and escalators. Some alternatives to stairs are elevators (also called lifts), stairlifts, inclined moving walkways, ladders, and ramps. A stairwell is a vertical shaft or opening that contains a staircase. A flight (of stairs) is an inclined part of a staircase consisting of steps (and their lateral supports if supports are separate from steps). History ''This is an excerpt from Staircase.'' The concept of stairs is believed to be 8000 years old, and is one of the oldest structur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stair Riser
Stairs are a structure designed to bridge a large vertical direction, vertical distance between lower and higher levels by dividing it into smaller vertical distances. This is achieved as a diagonal series of horizontal platforms called steps which enable passage to the other level by Walking, stepping from one to another step in turn. Steps are very typically rectangular. Stairs may be straight, curved, or may consist of two or more straight pieces connected at angles. Types of stairs include staircases (also called stairways) and escalators. Some alternatives to stairs are elevators (also called lifts), stairlifts, inclined moving walkways, ladders, and ramps. A stairwell is a vertical shaft or opening that contains a staircase. A flight (of stairs) is an inclined part of a staircase consisting of steps (and their lateral supports if supports are separate from steps). History ''This is an excerpt from Staircase.'' The concept of stairs is believed to be 8000 years old, and is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stairlift
A stair lift is a mechanical device for lifting people, typically those with disabilities, up and down stairs. For sufficiently wide stairs, a rail is mounted to the treads of the stairs. A chair or lifting platform is attached to the rail. A person gets onto the chair or platform and is lifted up or down the stairs by the chair which moves along the rail. Stair lifts are known variously as stairlifts, stair gliders, stair-lifts, chair lifts (but distinct from the chairlift used by skiers) and by other names. The term stair climber can refer either to stair lifts, or more commonly to the exercise equipment by the same name. Some of the first stair lifts to be produced commercially were advertised and sold in the U.S. in the 1930s by the Inclinator Company of America. Many users at the time were victims of polio. Now they are for use by people who are elderly, fall-prone, or disabled and unable to navigate stairs safely. History In the 1920s, C.C. Crispen, a Pennsylvania entrepr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Staircase
A stairwell or stair room is a room in a building where a stair is located, and is used to connect walkways between floors so that one can move in height. Collectively, a set of stairs and a stairwell is referred to as a staircase or stairway. In buildings with several housing units, a stairway can be a necessary common area for getting to and from apartments. Staircases provide vertical access to connected floors in a multi-story building, and are a functional part of it. Stairwells are often used to place several staircases vertically, one above the other. The entrance to elevators is often located in the stairwell. Sometimes the stairwell goes around the lift shaft, other times it is placed next to it. A ''landing'' platform area is generally provided at both ends of a staircase, rather than having a long series of steps that directly leads to a doorway without a flat area between the steps and the door. Minimum requirements for landing platforms are typically establish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Escalator
An escalator is a moving staircase which carries people between floors of a building or structure. It consists of a Electric motor, motor-driven chain of individually linked steps on a track which cycle on a pair of tracks which keep the step tread horizontal. Escalators are often used around the world in places where elevator, lifts would be impractical, or they can be used in conjunction with them. Principal areas of usage include department stores, shopping malls, airports, list of transit systems, transit systems (railway/railroad stations), convention centers, hotels, arenas, stadiums and public buildings. Escalators have the capacity to move large numbers of people. They have no waiting interval (except during very heavy traffic). They can be used to guide people toward main exits or special exhibits and may be weatherproofed for outdoor use. A non-functional escalator can function as a normal staircase, whereas many other methods of transport become useless when they ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Staircase
A stairwell or stair room is a room in a building where a stair is located, and is used to connect walkways between floors so that one can move in height. Collectively, a set of stairs and a stairwell is referred to as a staircase or stairway. In buildings with several housing units, a stairway can be a necessary common area for getting to and from apartments. Staircases provide vertical access to connected floors in a multi-story building, and are a functional part of it. Stairwells are often used to place several staircases vertically, one above the other. The entrance to elevators is often located in the stairwell. Sometimes the stairwell goes around the lift shaft, other times it is placed next to it. A ''landing'' platform area is generally provided at both ends of a staircase, rather than having a long series of steps that directly leads to a doorway without a flat area between the steps and the door. Minimum requirements for landing platforms are typically establish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Handrail
A handrail is a rail that is designed to be grasped by the hand so as to provide safety or support. In Great Britain, Britain, handrails are referred to as banisters. Handrails are commonly used while ascending or descending stairways and escalators in order to prevent injurious falls, and to provide bodily support in bathrooms or similar areas. Handrails are typically supported by balusters or attached to walls. Similar items not covered in this article include grab bar, bathroom handrails—which help to prevent falls on slippery, wet floors—other grab bars, used, for instance, in galley (kitchen), ships' galleys, and barre (ballet), barres, which serve as training aids for ballet dancers. Guard rails and balustrades line drop-offs and other dangerous areas, keeping people and vehicles out. British specifications British Standard and British Standard Code of Practice are harmonized to European Normal (EN) series. Handrail height is set between . US specifications Dimens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vertical Direction
In astronomy, geography, and related sciences and contexts, a ''Direction (geometry, geography), direction'' or ''plane (geometry), plane'' passing by a given point is said to be vertical if it contains the local gravity direction at that point. Conversely, a direction, plane, or surface is said to be horizontal (or ''leveled'') if it is everywhere perpendicular to the vertical direction. In general, something that is vertical can be drawn from up to down (or down to up), such as the y-axis in the Cartesian coordinate system. Historical definition The word ''horizontal'' is derived from the Latin , which derives from the Greek , meaning 'separating' or 'marking a boundary'. The word ''vertical'' is derived from the late Latin ', which is from the same root as ''vertex'', meaning 'highest point' or more literally the 'turning point' such as in a whirlpool. Girard Desargues defined the vertical to be perpendicular to the horizon in his 1636 book ''Perspective''. Geophysical defi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quarter-round
A quarter round is a convex Molding (decorative), molding whose cross section is a quarter circle. It is one form of ovolo. A variation is a base shoe, a quarter of an ellipse. Most quarter round is of small gauge and relatively flexible. It is typically used as a decorative build-up element in mantels and other architectural features, and at the lower edge of baseboard to hide any gaps between it and a floor. Base shoe is used similarly in flooring applications. Quarter round is produced in hardwood, softwood, engineered wood, and extruded plastic. References Floors Architectural elements {{architecturalelement-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kite (geometry)
In Euclidean geometry, a kite is a quadrilateral with reflection symmetry across a diagonal. Because of this symmetry, a kite has two equal angles and two pairs of adjacent equal-length sides. Kites are also known as deltoids, but the word ''deltoid'' may also refer to a deltoid curve, an unrelated geometric object sometimes studied in connection with quadrilaterals.See H. S. M. Coxeter's review of in : "It is unfortunate that the author uses, instead of 'kite', the name 'deltoid', which belongs more properly to a curve, the three-cusped hypocycloid." A kite may also be called a dart, particularly if it is not convex. Every kite is an orthodiagonal quadrilateral (its diagonals are at right angles) and, when convex, a tangential quadrilateral (its sides are tangent to an inscribed circle). The convex kites are exactly the quadrilaterals that are both orthodiagonal and tangential. They include as special cases the right kites, with two opposite right angles; the rhombus, rhombi, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molding (decorative)
Moulding (British English), or molding (American English), also coving (in United Kingdom, Australia), is a strip of material with various profiles used to cover transitions between surfaces or for decoration. It is traditionally made from solid milled wood or plaster, but may be of plastic or reformed wood. In classical architecture and sculpture, the moulding is often carved in marble or other stones. In historic architecture, and some expensive modern buildings, it may be formed in place with plaster. A "plain" moulding has right-angled upper and lower edges. A "sprung" moulding has upper and lower edges that bevel towards its rear, allowing mounting between two non-parallel planes (such as a wall and a ceiling), with an open space behind. Mouldings may be decorated with paterae as long, uninterrupted elements may be boring for eyes. Types Decorative mouldings have been made of wood, stone and cement. Recently mouldings have been made of extruded polyvinyl chl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
