Ad
related to: garrett morgan patent traffic light
Search results
Results From The WOW.Com Content Network
Garrett Augustus Morgan Sr. (March 4, 1877 – July 27, 1963) was an American inventor, businessman, and community leader.His most notable inventions were a type of three-way traffic light, [1] and a protective 'smoke hood' [2] notably used in a 1916 tunnel construction disaster rescue.
[1]: 386–7 After witnessing an accident between an automobile and a horse-drawn carriage, inventor Garrett Morgan filed a U.S. patent for a traffic signal. [20] Patent No. 1,475,024 was granted on 20 November 1923 for Morgan's three-position traffic signal. [21] A further development of traffic signals were staggered systems.
It’s been a century since Garrett Morgan patented the three-position traffic signal. Sandra Morgan, his granddaughter, says she’s fought to keep his legacy alive.
In 1923, Garrett Morgan patented a design of a manually operated three-way traffic light with moving arms. [17] The control of traffic lights made a big turn with the rise of computers in America in the 1950s. One of the best historical examples of computerized control of lights was in Denver in 1952.
Image credits: Rose Smith #8 Garrett Morgan Invented What Would Become The Yellow Traffic Light. Before Morgan's invention, traffic lights only had "stop" and "go" without any indication to slow down.
Like Wire, Potts did not apply for a patent. The first inventor of a traffic light to do so was Garrett Morgan, who in 1923 patented his invention of a three-way traffic light with "STOP" and "GO" signals, as well as a third signal for pedestrians. Morgan eventually sold his patent to General Electric, who began mass-producing traffic lights ...
Morgan, Garrett: 1877–1963 Inventor Invented an early version of a gas mask called a smoke hood, and created the first traffic light that included a third "warning" position which is standard today. Morgan also developed a chemical that was used in hair products for hair-straightening. [148] [149] Nriagu, Jerome: 1944– Geochemist
U.S. patent no. 1,475,024 was granted to African-American inventor Garrett Morgan for the first three-position traffic light (with a red-amber-green signal for stop, caution and go respectively) still in use a century later. Morgan had applied for the patent on February 27, 1922.