Moving pavement proposal for New York 1874 Chicago Passenger Conveyor 1893

System at Chicago 1893
Elevated moving pavement proposed in 1874 for New York Moving platform at the World's Columbian Exposition in Chicago 1893

Moving platform at Exposition in Chicago 1893

Proposal for Chicago 1993

 Passenger conveyor Paris 1900 Passenger conveyor Paris 1900
Moving platform proposed for Chicago 1893 Tapis Roulant,Paris Exposition 1900

Tapis Roulant,Paris Exposition 1900
Passenger conveyor Paris 1900 Passenger conveyor Paris 1900

Paris Expo
Tapis Roulant,Paris Exposition 1900 Tapis Roulant,Paris Exposition 1900 Tapis Roulant,Paris Exposition 1900 - diagram
Moving platform proposed for New York 1904 Moving platform proposed for New York 1923

System for New York 1923
Moving platform proposed for New York 1904 Moving platform proposed for New York 1923

Linear induction motor of Putnam's system
System for New York 1923
H S Putnam's system proposed for New York 1923