The Revolutionary Revolving Door

Invented by Theophilus Van Kannel

Facts

  • Invented August 7th 1888
  • First Revolving Door was installed in a restaurant called Rector's in Times
  • Panels incorporate glass to make it see through
  • Tallest revolving door is 16 ft high
  • 1943 became a MA state law requirement to flank a revolving door with a swinging hinged door or make it collapsible
  • Revolving doors are used in airports to prevent people from skipping security


Impact on Industrial growth

  • Helps reduce energy costs
  • Prevent street fumes from entering the building
  • Help to equalize air pressure
  • Makes buildings aesthetically pleasing