Industrial Escalators

( Mechanical Engineering) a moving staircase consisting of stair treads fixed to a conveyor belt, for transporting passengers between levels, esp between the floors of a building. 2. ( Industrial Relations & HR Terms) short for escalator clause.: a power-driven set of stairs arranged like an endless belt that ascend or descend continuously. : an upward course suggestive of an escalator.Escalators are mechanical devices used for transporting people vertically between different levels of buildings. Typically, they take the form of a moving staircase, consisting of a 'chain' of single-piece aluminium or stainless steel steps guided by a system of tracks in a continuous loop.Elevators, or lifts, carry passengers and freight up and down; escalators are moving staircases from one story of a building to the next; and moving sidewalks carry people horizontally or at a slight incline.