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  2. Moving walkway - Wikipedia

    en.wikipedia.org/wiki/Moving_walkway

    Moving walkway inside the Changi Airport station of the Singapore MRT. A moving walkway, also known as an autowalk, [1] moving pavement, [2] moving sidewalk, [3] travolator, [4] or travelator (British English), [5] is a slow-moving conveyor mechanism that transports people across a horizontal or inclined plane over a short to medium distance. [6]

  3. Fly system - Wikipedia

    en.wikipedia.org/wiki/Fly_system

    Fly loft of the Theater Bielefeld in Germany. A fly system, or theatrical rigging system, is a system of ropes, pulleys, counterweights and related devices within a theater that enables a stage crew to fly (hoist) quickly, quietly and safely components such as curtains, lights, scenery, stage effects and, sometimes, people.

  4. Ward Leonard control - Wikipedia

    en.wikipedia.org/wiki/Ward_Leonard_control

    The key feature of the Ward Leonard control system is the ability to smoothly vary the speed of a DC motor, including reversing it, by controlling the field and hence the output voltage of a DC generator, as well as the field of the motor itself. As the speed of a DC motor is dictated by the supplied voltage, this gives simple speed control.

  5. Tension grid - Wikipedia

    en.wikipedia.org/wiki/Tension_grid

    A tension grid forming the floor of an AT&T anechoic chamber. Originally developed for use as a floor in anechoic chambers, this style of catwalk is popular in new and remodeled theatres due to the flexibility it provides. Use of a tension grid does not require working off of edges as a traditional catwalk does, as lights are over the walking ...

  6. Footbridge - Wikipedia

    en.wikipedia.org/wiki/Footbridge

    The walkway on the outside (top) of a railroad cars such as boxcars, before air brakes came into use, or on top of some covered hopper cars is also called a catwalk. [10] With the exception of those on top of railroad cars, catwalks are equipped with railings or handrails .

  7. Motor–generator - Wikipedia

    en.wikipedia.org/wiki/Motor–generator

    The motor–generator set may contain a large flywheel to improve its ride-through; however, consideration must be taken in this application as the motor–generator will lose speed and may draw a large current when power returns or the circuit-breaker is re-closed. If the speed loss is excessive (the power outage is too long), the re-closure ...

  8. Box motor - Wikipedia

    en.wikipedia.org/wiki/Box_motor

    A preserved box motor from Iowa. A box motor, in railroad terminology, is a self-propelled boxcar, normally powered by electricity and running on an interurban railway or a streetcar line. Many box motors were converted from passenger cars on the systems that ran them, with the seats and most of the windows removed and large freight doors fitted.

  9. Skyway - Wikipedia

    en.wikipedia.org/wiki/Skyway

    Skyways in the Peachtree Center district of Atlanta A Han dynasty (202 BC – 220 AD) Chinese miniature model of two residential towers joined by a skyway. A skyway, skybridge, skywalk, or sky walkway is an elevated type of pedway connecting two or more buildings in an urban area, or connecting elevated points within mountainous recreational zones.

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