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SunSetter's primary product lines are awnings, but the company also manufactures retractable screens, solar shades, flagpoles, and mats. [citation needed] The company currently produces four different types of deck and patio awnings (including motorized and manual awnings); customers choose the color and size. [1]
A voussoir (/ v u ˈ s w ɑːr /) is a wedge-shaped element, typically a stone, which is used in building an arch or vault. [1] Although each unit in an arch or vault is a voussoir, two units are of distinct functional importance: the keystone and the springer. The keystone is the centre stone or masonry unit at the apex of an arch.
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Morituri te salutant Model of the Colosseum with its velarium in the Museum of Roman Civilization. A velarium ("curtain") [3] was a type of awning used in Roman times. It stretched over the whole of the cavea, the seating area in amphitheaters, to protect spectators from the sun. [4] [2] Retractable awnings were relatively common throughout the ...
Awnings were first used by the ancient Egyptian and Syrian civilizations. They are described as "woven mats" that shaded market stalls and homes. A Roman poet Lucretius, in 50 BC, said "Linen-awning, stretched, over mighty theatres, gives forth at times, a cracking roar, when much 'tis beaten about, betwixt the poles and cross-beams".
A building's surface detailing, inside and outside, often includes decorative moulding, and these often contain ogee-shaped profiles—consisting (from low to high) of a concave arc flowing into a convex arc, with vertical ends; if the lower curve is convex and higher one concave, this is known as a Roman ogee, although frequently the terms are used interchangeably and for a variety of other ...
Seen from one end, the two arches take the form of a handle. The through arch bridge usually consists of two ribs, [5] although there are examples like the Hulme Arch Bridge of through arches with a single rib. When the two arches are built in parallel planes, the structure is a parallel rib arch bridge. When the two arch ribs lean together and ...
A segmental arch is a type of arch with a circular arc of less than 180 degrees. [1] It is sometimes also called a scheme arch. [2] The segmental arch is one of the strongest arches because it is able to resist thrust. [3] [clarification needed] To prevent failure, a segmental arch must have a rise that is equal to at least one-eighth the width ...
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