Conveyors: power-driven – Conveyor or accessory therefor specialized to convey people – By stairway having steps forming an endless member
Patent
1983-07-01
1984-03-06
Spar, Robert J.
Conveyors: power-driven
Conveyor or accessory therefor specialized to convey people
By stairway having steps forming an endless member
198778, B65B 912
Patent
active
044348843
ABSTRACT:
A passenger carrying system for transporting passengers between two floors, comprising a plurality of interconnected steps which move between the floors in a closed pattern that includes sections which spiral down and up between the floors around vertical posts. In the spiral sections the steps form staircases which move along the pattern.
REFERENCES:
patent: 723325 (1903-03-01), Souder
patent: 2677451 (1954-05-01), Normandeau
Greenstien Robert E.
Holmes Jonathan D.
Otis Elevator Company
Spar Robert J.
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