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The wooden oriel for the rope lift is visible above the modern entrance. An elevated entrance is a type of entrance, common in the design of medieval castles, that is not accessible from ground level, but lies at the level of an upper storey. The elevated entrance is the lowest and frequently the only way of entering a fortified building or ...
Drawbridge. A drawbridge or draw-bridge is a type of moveable bridge typically at the entrance to a castle or tower surrounded by a moat. In some forms of English, including American English, the word drawbridge commonly refers to all types of moveable bridges, such as bascule bridges, vertical-lift bridges and swing bridges, but this article ...
The Forbidden City (Chinese: 紫禁城; pinyin: Zǐjìnchéng) is a palace complex in Dongcheng District, Beijing, China, at the center of the Imperial City of Beijing.It is surrounded by numerous opulent imperial gardens and temples including the 22 ha (54-acre) Zhongshan Park, the sacrificial Imperial Ancestral Temple, the 69 ha (171-acre) Beihai Park, and the 23 ha (57-acre) Jingshan Park.
Drawbar (defense) 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 ...
www .istananegara .gov .my. The Istana Negara (English: National Palace) is the official residence of the Yang di-Pertuan Agong, the monarch of Malaysia. It is located along Jalan Tuanku Abdul Halim (formerly Jalan Duta) near Taman Duta, northwestern Kuala Lumpur. The palace opened in 2011 and replaced the old Istana Negara which was located at ...
A sallyport is a secure, controlled entry way to an enclosure, e.g., a fortification or prison. The entrance is usually protected by some means, such as a fixed wall on the outside, parallel to the door, which must be circumvented to enter and prevents direct enemy fire from a distance. It may include two sets of doors that can be barred ...
Bent entrance. A bent or indirect entrance is a defensive feature in medieval fortification. [1] In a castle with a bent entrance, the gate passage is narrow and turns sharply. Its purpose is to slow down attackers attempting to rush the gate and impede the use of battering rams against doors. It is often combined with means for an active ...
Trapped-key interlocking. This is a trapped-key interlock on the door of an electrical switchgear cabinet. It is attached with one-way security screws to discourage casual removal, which would defeat the interlock scheme. Trapped-key interlocking utilizes locks and keys for sequential control of equipment and machinery to ensure safe operation.
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