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A door may be stopped by a doorstop which is simply a heavy solid object, such as a brick, placed in the path of the door. These stops are predominantly improvised. [1] Historically, lead bricks have been popular choices when available. [3] However, as the toxic nature of lead has been revealed, this use has been strongly discouraged. [4]
High-speed doors are made to handle a high number of openings, generally more than 200,000 a year. They must be built with heavy-duty parts and counterbalance systems for speed enhancement and emergency opening function. The door curtain was originally made of PVC, but was later also developed in aluminium and acrylic glass sections.
A door closer is a mechanical device that regulates the speed and action of a door’s swing. [1] Manual closers store the force used to open the door in some type of spring and reuse it to close the door. Automatic types use electricity to regulate door swing behavior. Door closers can be linked to a building's fire and security alarm systems. [2]
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Michelle Williams' Christmas is looking low-key this year. In an exclusive interview with PEOPLE, the actress/singer — who is currently starring in Death Becomes Her on Broadway — opened up ...
Lutyens saw to the careful molding of the arches, the choice of furniture, selecting his favorite blue and white porcelain, and to the design of the door latches. The kitchen remains unchanged, which makes for hard work, with no back entrance, everything being brought through the front, including some heavy furniture designed by Lutyens. [107]
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