Duo spiral escalator with curved return

摘要

This invention describes the design of a carrier system for people or goods that provides a continuous path of travel of a duo spiral escalator ascending and descending around a cylindrical tower with all stairway treads remaining upright and in continuous operation. At the bottom level and at the top level of the spiral escalator the treads follow a curved path from one side of the tower to the other as they travel along two half circle tracks. At the end of the first half circle in the center of the tower, each tread is lifted from its tracks, rotated 180 degrees, and placed back down on the tracks at the beginning of the second half circle. This invention permits continuous transportation of the riders ascending and descending to a plurality of floors of varying ceiling heights.

主权项

1. A duo spiral escalator with curved return, provides for simultaneous movement of all of the escalator treads on multiple floors by means of tracks and chains around the outside of a cylindrical tower, with the ascending and descending duo spiral escalator treads being connected along curved tracks on the top and bottom floors, allowing for continuous operation of the entire system.