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English: Diagram of a latch constructing using a multiplexer, viewed as a pair of transmission gates and three inverters. Date: 12 November 2009: Source: Own work:
A drawbar is a defensive implement used to secure a door or gate in a medieval or Early Modern building such as a castle, [1] [2] but also churches and townhouses. When drawn across the full length of the door, it prevents the door or gate from being opened. To open the door or gate, the drawbar is pushed into a drawbar slot in the wall.
A night latch (or night-latch or nightlatch) is a lock that is fitted on the surface of a door; it is operated from the exterior side of the door by a key and from the interior (i.e. "secure") side of the door by a knob.
A latch bolt is an extremely common latch type, typically part of a lockset. It is a spring-loaded bolt with an angled edge. It is a spring-loaded bolt with an angled edge. [ 1 ] [ 2 ] When the door is pushed closed, the angled edge of the latch bolt engages with the lip of the strike plate; a spring allows the bolt to retract.
A gated SR latch can be made by adding a second level of NAND gates to an inverted SR latch. The extra NAND gates further invert the inputs so a SR latch becomes a gated SR latch (a SR latch would transform into a gated SR latch with inverted enable). Alternatively, a gated SR latch (with non-inverting enable) can be made by adding a second ...
A baby gate or stair gate is a protective barrier designed to prevent babies and toddlers from accessing areas of a home that may not be safe for them, such as stairways and kitchens. [2] Baby gates are typically constructed of metal, plastic and/or wood, and can be expanded to fit in a range of doorway widths.
Lach Gates (Ukrainian: Лядські ворота) at Independence Square in Kyiv is a monument built in 2001 to commemorate one of the Medieval Kyiv city gates. At the top is a sculpture of Archangel Michael which is the city's symbol. The gates were located in the former city's Polish quarter on the southeast side of Kyiv.
In his castle, Jareth is informed that Sarah has gotten past the gate guard to the Goblin City. Alarmed by the news, he orders the goblins to hide Toby and sends his goblin troops to stop Sarah from reaching the castle, but the defence is unsuccessful. Sarah finds Jareth in a gravity-defying room of staircases and he leads her on a chase.