Escalator or Moving Stairway at Sixth Avenue and Thirty-third Street Station of Elevated Railway, New York City
A Duplex Escalator of the Cleat Type in a Department Store
This type of escalator makes use of hard wood cleats in place of steps.
An Escalator or Moving Stairway for the Use of Employees in a Large Worsted Mill
A Cleat Type Escalator, Showing the Hardwood Cleats Used in Place of Steps