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The track system is built into the truss to guide the step chain, which continuously pulls the steps from the bottom platform and back to the top in an endless loop. One track guides the front wheels of the steps (called the step-wheel track) and another guides the back wheels of the steps (called the trailer-wheel track).
Central–Mid-Levels escalator. The Central–Mid-Levels escalator and walkway system in Hong Kong is the longest outdoor covered escalator system in the world. The system covers over 800 m (2,600 ft) in distance and traverses an elevation of over 135 m (443 ft) from bottom to top. It opened in 1993 to provide an improved link between Central ...
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] people-mover, 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]
Shopping cart conveyor. A Shopping Cart Conveyor also known as Vermaport, Cartveyor or shopping cart escalator is a device used in multi-level retail stores for moving shopping carts parallel and adjacent to an escalator. Shoppers can load their shopping carts onto the conveyor, step onto the escalator, ride the escalator with the cart beside ...
The convergence of the geometric series with r=1/2 and a=1/2 The convergence of the geometric series with r=1/2 and a=1 Close-up view of the geometric series' partial sums over the range -1 < r < -0.5 as the first 11 terms of the geometric series 1 + r + r 2 + r 3 + ... are added, demonstrating alternating convergence.
The UIC classification of locomotive axle arrangements, sometimes known as the German classification[1] or German system, [2][3] describes the wheel arrangement of locomotives, multiple units and trams. It is used in much of the world, notable exceptions being the United Kingdom and North America [a]. The classification system is managed by the ...
The Mecanum wheel is a form of tireless wheel, with a series of rubberized external rollers obliquely attached to the whole circumference of its rim. These rollers typically each have an axis of rotation at 45° to the wheel plane and at 45° to the axle line. [3] Each Mecanum wheel is an independent non-steering drive wheel with its own ...
To illustrate, "the invention of the wheel revolutionized human mobility, allowing humans to travel greater distances and carry greater loads with them". [13] This technological advancement also leads to interactions between different cultural groups, advanced trade, etc, and thus impacts the size and relations both within and between different ...