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On analog telephone lines with special services, a flash or register-recall signal is used to control functions on the public telephone exchange, PBX or VoIP ATA.. The term "register-recall" in Europe refers to sending a discrete signal to alert the "register" — the logical system controlling a telephone exchange, that it should accept commands from the end user in the middle of a call.
A destination dispatch elevator, here using a Compass system from Otis.. Destination dispatch is an optimization technique used for multi-elevator installations, in which groups of passengers heading to the same destinations use the same elevators, thereby reducing waiting and travel times.
Once the elevator has left the floor, depending on where the alarm was set off, the elevator will go to the fire-recall floor. However, if the alarm was activated on the fire-recall floor, the elevator will have an alternate floor to recall to. When the elevator is recalled, it proceeds to the recall floor and stops with its doors open.
A paternoster in Prague Paternoster elevator in The Hague, when it was still in operation. A paternoster (/ ˌ p eɪ t ər ˈ n ɒ s t ər /, / ˌ p ɑː-/, or / ˌ p æ-/) or paternoster lift is a passenger elevator which consists of a chain of open compartments (each usually designed for two people) that move slowly in a loop up and down inside a building without stopping.
"Escalator" was not a combination of other French or Greek words, and was never a derivative of "elevator" in the original sense, which means "one who raises up, a deliverer" in Latin. [21] Similarly, the root word " scala " does not mean "a flight of steps", but is the singular form of the plural noun " scalae ", which can denote any of: "a ...
Nissan is recalling at least 712,458 vehicles in its Rogue line over an issue with malfunctioning car keys that can inadvertently cause engines to shut off. The recall affects “S” grade trim ...
Otherwise, Jewish law prohibits observers from using an elevator on Shabbat in the usual manner, because pressing the button to operate the elevator closes a circuit, which is one of the activities prohibited on Shabbat and may also indirectly lead to "writing" of the new floor number in the display. [citation needed]
A reversing mechanism of some type has been present on locomotives almost since inception. The reversing lever on a steam locomotive is sometimes called a Johnson Bar.The style of reverser used on internal combustion locomotives has been in use since at least the early 1900s but as late as 1996 patented improvements have been made to the design and operation.