The first revolving door was invented in 1888 with the goal of preventing wind, snow,
rain, dust, or noise from entering buildings. The original patent application
was filed by Theophilus Van Kannel of Philadelphia. (He was granted U.S. patent 387,571 for a
three-wing “Storm-door structure” on August 7, 1888.
4 comments:
No, I did not know this! He was a smart man! But do you know what? Revolving doors scare me. A little. Not so much that I won't use them if there's no other entrance, though.
1888! That's pretty incredible.
I hope you earned some money from that patent! Great invention.
Interesting! Theophilus looks quite handsome in the picture!
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