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A key exchange block may only hold and release keys and may not have a bolt to interlock process equipment, or may be part of the interlock of a particular machine or device. This is a transfer block, part of a trapped-key interlock system. It does not have a bolt to stop operation of a device, but holds and releases other keys.
Trapped key interlock switchgear door. An interlock is a feature that makes the state of two mechanisms or functions mutually dependent. It may consist of any electrical or mechanical devices, or systems. In most applications, an interlock is used to help prevent any damage to the machine or to the operator handling the machine.
By 1900, 54 electro-pneumatic interlocking plants, controlling a total of 1,864 interlocking levers, were in use on 13 North American railroads. This type of system would remain one of two viable competing systems into the future, although it did have the disadvantage of needing extra single-use equipment and requiring high maintenance. [7]
Interlock role-playing system; Interlocking spur: landsliding occurring in a river's upper course which modifies the river bed pattern; Mechanically-interlocked molecular architectures in Supramolecular chemistry comprises a.o., Catenane and Rotaxane molecules, and Molecular knot; Interlock fabric, a double-knitted jersey fabric.
A fire sprinkler system is an active fire protection method, consisting of a water supply system providing adequate pressure and flowrate to a water distribution piping system, to which fire sprinklers are connected. Although initially used only in factories and large commercial buildings, systems for homes and small buildings are now available ...
The Danevirke or Danework [2] (modern Danish spelling: Dannevirke; in Old Norse: Danavirki, in German: Danewerk, literally meaning earthwork of the Danes [3]) is a system of Danish fortifications in Schleswig-Holstein, Germany.
British Viking in the well dock of HMS Bulwark Viking Mortar Section of RM Armoured Support Group in 2020 Queen's Royal Lancers in Helmand, 2008.. The BvS10 (Bandvagn Skyddad 10, also known as Bandvagn 410 or BV410) is a tracked articulated amphibious all-terrain armoured vehicle produced by BAE Systems Land Systems Hägglunds of Sweden. [1]
Viking expeditions (blue): Norse people, including Swedes, engaged in far-reaching voyages and raids. Swedish Vikings predominantly traveled eastward, into Russia. The Swedes took part in many Western raids against England alongside the Danes and Norwegians of which many successfully acquired Danegeld as seen on the England Runestones. The ...