Published at Wednesday, September 28th, 2016 - 19:16:13 PM. Door. By john.
Building access Since at least medieval times there have been hinges to draw bridges for defensive purposes for fortified buildings. Hinges are used in contemporary architecture where building settlement can be expected over the life of the building. For example, the Dakin Building in Brisbane, California, was designed with its entrance ramp on a large hinge to allow settlement of the building built on piles over bay mud. This device was effective until October 2006, when it was replaced due to damage and excessive ramp slope.
Dutch door : A Dutch door (American English), stable door (British English), or half door (Hiberno English), is a door divided horizontally in such a fashion that the bottom half may remain shut while the top half opens. They were known in early New England as a double-hung door. The initial purpose of this door design was to keep animals out of farmhouses or to keep children inside while allowing light and air to filter through the open top; essentially combining a door with a fairly large window. When the top half was open they also allowed a breeze, but stopped the wind from blowing dirt into the house. This type of door was common in the Netherlands in the seventeenth century and appears in Dutch paintings of the period. They were also commonly found in the Dutch cultural areas of New York and New Jersey before the American Revolution. Dutch doors are often used in North-American passenger train cars to allow crewmen to interact safely with other employees not aboard their trains (or simply to visually inspect their own train) without risking falling from the train. Recent operating rules changes in Canada have rendered the Dutch-doors obsolete, although older rolling stock retains the doors. Similar doors were once commonplace in Irish houses, called half-doors (Irish: leathdoras or comhla bheag). According to The Irish Times, A traditional half-door is really a door and a half – a full door that opens inwards and a half door set to the front of the frame that opens outwards. They were designed to keep poultry and pigs from entering the house, as well as allowing air and sunlight into the usually dark and smoky cottages. The term is also applied to the modified rear doors on selected GMC Safaris and Chevrolet Astros that have a flip up rear window and two small half-size doors underneath.
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