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File talk:World Trade Center Building Design with Floor and Elevator Arrangment.svg Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
This work has been released into the public domain by its author, MacRudi.This applies worldwide. In some countries this may not be legally possible; if so: MacRudi grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
On most building designs, this is a simple "box" on the roof, while on others it is concealed inside a decorative spire. A consequence of this is that if the topmost mechanical floors are counted in the total, there can be no such thing as a true "top-floor office" in a skyscraper with this design.
A residential elevator with integrated hoistway construction and machine-room-less design. A residential elevator or home lift is often permitted to be of lower cost and complexity than full commercial elevators. They may have unique design characteristics suited for home furnishings, such as hinged wooden shaft-access doors rather than the ...
The elevator operator had to regulate the elevator's speed, which typically required a good sense of timing to consistently stop the elevator level with each floor. In addition to their training in operation and safety, department stores later combined the role of operator with greeter and tour guide , announcing product departments, floor by ...
The invention of the elevator was a precondition for the invention of skyscrapers, given that most people would not (or could not) climb more than a few flights of stairs at a time. The elevators in a skyscraper are not simply a necessary utility like running water and electricity, but are in fact closely related to the design of the whole ...
An inclined elevator differs from a funicular in that the latter has a cable attached to a pair of vehicles, the ascending and descending vehicles counterbalancing each other. In the inclined elevator one car is either winched up to the station at the top of the incline where the cable is collected on a winch drum, or the single car is balanced ...
The building's small, obround shaped windows were a design motif of the Express Lift Company, whose lift control panels featured control buttons and floor indicators of the same shape. In January 1997, the tower fell out of use after Express was taken over by Otis (who typically used its test facilities in the United States). In 1999, the tower ...