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
Suicide door : A suicide door is the slang term for an automobile door hinged at its rear rather than the front. Such doors were originally used on horse-drawn carriages, but are rarely found on modern vehicles, primarily because they are widely perceived as being unsafe. Popularized in the custom car trade,
Sliding door (car) : A sliding door is a type of door is mounted on or suspended from a track for the door to slide, usually horizontally. It is a feature predominately relegated to minibuses and buses to provide a large entrance or exit for passengers without obstructing the adjacent pathway
Telcordia GR-2930 This design permits equipment to be fastened directly to the platform without the need for toggle bars or supplemental bracing. Structural platforms may or may not contain panels or stringers. Data centers typically have raised flooring made up of 60 cm (2 ft) removable square tiles. The trend is
Hinge : A hinge is a mechanical bearing that connects two solid objects, typically allowing only a limited angle of rotation between them. Two objects connected by an ideal hinge rotate relative to each other about a fixed axis of rotation: all other translations or rotations being prevented, and thus a
Barbed Wire The Industrial Revolution brought the first barbed wire (also barbwire or just barb) fences, which were widely used after their introduction in the mid-19th century. This technology made it economically feasible to fence rangeland for the first time. In the United States, introduction of barbed wire contributed to the
Barbed Wire The traditional barbed wire used since the late 19th century and into the present day was made from two mild steel wires twisted together, usually of about 12 or 14 gauge, with about 15-30 twists per metre. Steel barbs were attached every 10–20 cm. Barbs had either two or
A floor is the bottom surface of a room or vehicle or even possibly the surface on which people dance, commonly referred to as a dance floor. Floors vary from simple dirt in a cave to many-layered surfaces modern technology. Floors may be stone, wood, bamboo, metal or any other
The general types of telecommunications data centers include: structural platforms and, truss assemblies. Structural platforms — members constructed of steel angles or channels that are welded or bolted together to form an integrated platform for supporting equipment. Truss assemblies — utilizing attachment points to the subfloor to support a
High Tensile Wire High tensile (H-T or HT) fencing is a special hard, springy steel wire that was introduced in the 1970s and has slowly gained acceptance. The wire may be a single strand plain or barbed wire, or woven mesh, and is capable of much higher tension than mild steel.
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