Archive for the 'Safety' Category
11
Feb
A REMINDER FROM THE PDX RETRO BLOG
posted by Bob Karm in Blog Reminder,CURRENT EVENTS,Football,Safety,SPORTS,Super Bowl and have No Comments
20
Nov
THREE-POSITION TRAFFIC LIGHT PATENT
Garrett Augustus Morgan Sr.
(March 4, 1877 – July 27, 1963)
On November 20, 1923, the U.S. Patent Office grants Patent No.
1,475,074 to 46-year-old inventor and newspaperman Garrett
Morgan for his three-position traffic signal. Though Morgan’s
was not the first traffic signal (that one had been installed in
London in 1868), it was an important innovation nonetheless:
By having a third position besides just “Stop” and “Go,”
it regulated crossing vehicles more safely than earlier
signals had.
Morgan also invented a "safety hood smoke protection device"
posted by Bob Karm in African American,ANNIVERSARY,HISTORY,Inventor,Patent,Safety and have No Comments
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