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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 manhole cover sits on a metal base, with a smaller inset rim which fits the cover. The base and cover are sometimes called "castings", because they are usually made by a casting process, typically sand-casting techniques. [1] Pick holes in manhole cover, Palo Alto, California, USA Manhole valve made in 2022
The hinging of casement windows is referred to using the following abbreviations: FCL refers to a left-handed window, where the hinges are located on the left and the locking mechanism is on the right. FCR is a right-handed window with the hinges on the right and the locking mechanism on the left. These definitions apply to a window when ...
A heavy hammer made of a soft metal such as copper or lead was usually used for this purpose. Instructions for proper installation force vary, but overtightening of the mechanism should be avoided as it can distort the matching tapers on hub and wheel, leading to spline damage, excess play in the mechanism and/or difficulty of wheel removal and ...
OCAM may refer to: Organization Commune Africaine et Malgache, a former organization in Africa; YM Oceanic Culture and Art Museum, a museum in Kaohsiung, Taiwan
Canopy bed of the Chinese Qing dynasty, late 19th or early 20th century. The canopy bed arose from a need for warmth and privacy in shared rooms without central heating. Private bedrooms where only one person slept were practically unknown in medieval and early modern Europe, as it was common for the wealthy and nobility to have servants and attendants who slept in the same r
The columns are probably 4th century, the canopy 9th, 10th or 12th century. [1] In ecclesiastical architecture, a ciborium (Greek: κιβώριον; lit. ' ciborion ') is a canopy or covering supported by columns, freestanding in the sanctuary, that stands over and covers the altar in a church.
A lock and key is a pair of devices used to secure an object or location from unauthorized access. Lock and Key or Lock & Key may also refer to: Arts, entertainment, and media