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Albert Cameron Hunt (3 April 1857 – 2 October 1915) was an American electrician who invented the wigwag, a grade crossing signal used in transportation. [1] Hunt was a mechanical engineer from Southern California. He invented the wigwag in the early 1900s out of the necessity for a safer railroad grade crossing.
Wigwag is a nickname for a type of railroad grade crossing signal once common in North America, referring to its pendulum-like motion that signaled a train's approach. The device is generally credited to Albert Hunt , a mechanical engineer at Southern California 's Pacific Electric (PE) interurban streetcar railroad, who invented it in 1909 for ...
The Magnetic Signal Company was an American company based in Los Angeles, California, focused on railway signalling.The company was the manufacturer of the ubiquitous "Magnetic Flagman" wigwag railroad crossing (or level crossing) signal, seen all over California and the western states.
"Wigwag" was the nickname given to a type of crossing signals once common in North America, named for the pendulum-like motion it used to signal the approach of a train. Albert Hunt , a mechanical engineer at Southern California 's Pacific Electric (PE) interurban streetcar railroad, invented it in 1909 for safer railroad level crossings.
Wigwag is the nickname given to a type of early 20th century railroad grade crossing signal, so named due to the pendulum-like motion it used to signal the approach of a train. It is generally credited to Albert Hunt, a mechanical engineer at Southern California 's Pacific Electric interurban railroad who invented it in 1909 out of the ...
Albert Hunt invents the wigwag grade crossing protection signal for the Pacific Electric in Los Angeles, California. Opening of the Jingzhang railway connecting Beijing with Zhangjiakou , first section of the Jingbao railway in northwestern China and the first railway designed and built by Chinese.
Wigwag (more formally, aerial telegraphy) is an historical form of flag signaling that passes messages by waving a single flag. It differs from flag semaphore in that it uses one flag rather than two, and the symbols for each letter are represented by the motion of the flag rather than its position.
U.S. Army Signal Corps station on Elk Mountain, Maryland, overlooking the Antietam battlefield.. The Signal Corps in the American Civil War comprised two organizations: the U.S. Army Signal Corps, which began with the appointment of Major Albert J. Myer as its first signal officer just before the war and remains an entity to this day, and the Confederate States Army Signal Corps, a much ...