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Otis Signal Control was a signal operation elevator system introduced by Otis in 1924.

Overview

Otis Signal Control was the first signal operation elevator system. Otis Signal Control was a self-leveling elevator system. In the past, elevator speed was partly limited because of elevators requiring manual leveling, which became harder the faster the elevator is, even with 2 speeds, meaning elevators could go faster than ever at the time. Originally, this system was developed for low-speed, operatorless and foolproof service elevator in apartments. The first Signal Control elevator system installed in New York City was at the Standard Oil Building in 1925.

Notable installations

United States

  • Buffalo City Hall, Buffalo, NY
  • 40 Wall Street, New York City, NY
  • 60 Wall Tower, New York City, NY
  • Chrysler Building, New York City, NY
  • Standard Oil Building, New York City, NY (the first Signal Control installations)
  • Empire State Building, New York City, NY
  • Ring Building, Washington, DC
  • Terminal Tower, Cleveland, OH (since replaced 2 times by Haughton in 1968 and again by Kone Alta in 2008)
  • 140 New Montgomery Street, San Francisco, CA (since modernized 2 times by Otis Autotronic and again by Kone Polaris)

Other countries

  • Harrods Knightsbridge, London, England
  • Fairmont Hotel Vancouver, Vancouver B.C. Canada (since modernized)

Videos

AMAZING Vintage Otis Signal-Control Micro-Drive Manually-Controlled Traction Elevators10:58

AMAZING Vintage Otis Signal-Control Micro-Drive Manually-Controlled Traction Elevators

Vintage Otis Signal Control elevator at Buffalo City Hall, Buffalo, NY

External links

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