Conveyors: power-driven – Conveyor or accessory therefor specialized to convey people – By stairway having steps forming an endless member
Patent
1990-07-11
1991-01-15
Dayoan, D. Glenn
Conveyors: power-driven
Conveyor or accessory therefor specialized to convey people
By stairway having steps forming an endless member
198335, B66B 2106
Patent
active
049846710
ABSTRACT:
The balustrade of a linear or curved escalator has upper and lower edges that are curved in elevation between the horizontal landing portions and the constant slope inclined medial portion of the escalator. The radius which defines the upper and lower balustrade curves is developed so as to have the maximum value possible without producing a discontinuity in the vertical distance between the escalator handrail and the escalator tread surface which would be noticeable by a passenger on the escalator.
REFERENCES:
patent: 1049613 (1913-01-01), Seeberger
patent: 2211427 (1940-08-01), Margles
patent: 3049213 (1962-08-01), Fabuca
patent: 3749224 (1973-07-01), Engeler
patent: 4154336 (1979-05-01), Sorokin
patent: 4227605 (1980-10-01), Hofling
Nguyen Dat
Sansevero Frank
Dayoan D. Glenn
Jones William W.
Otis Elevator Company
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