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O que (quem) é Wigwag - definição
Wigwag
·add. ·vt & ·vi To move to and fro, to wag.
II. Wigwag ·vt To signal by means of a flag waved from side to side according to a code adopted for the purpose.
III. Wigwag ·add. ·vt & ·vi Act or art of wigwagging; a message wigwagged;
- chiefly attributive; as, the wigwag code.
wigwag
¦ verb (wigwags, wigwagging, wigwagged) N. Amer. informal
1. move to and fro.
2. signal by waving something.
Origin
C16: reduplication of wag1.
Wigwag (railroad)
![Arrow commuter rail service]].](https://commons.wikimedia.org/wiki/Special:FilePath/Dan redlands wigwag.jpg?width=200 "Arrow commuter rail service]].")
![Advertisement for the [[Hall Signal Company]], 1916](https://commons.wikimedia.org/wiki/Special:FilePath/Hall wigwag signal ad 1916.jpg?width=200 "Advertisement for the [[Hall Signal Company]], 1916")
!["Peach basket" variation primarily found on the Union Pacific, pictured in August 1999. This particular signal is operational and guards the main crossing of the [[Orange Empire Railway Museum]]](https://commons.wikimedia.org/wiki/Special:FilePath/Oerm peach basket.jpg?width=200 "\"Peach basket\" variation primarily found on the Union Pacific, pictured in August 1999. This particular signal is operational and guards the main crossing of the [[Orange Empire Railway Museum]]")
![Chicago & North Western]] in downtown [[Ames, Iowa]], September 1971. Signals were replaced by more modern devices in 1973.](https://commons.wikimedia.org/wiki/Special:FilePath/WRRS Autoflag 5 wigwag in Ames, IA.jpg?width=200 "Chicago & North Western]] in downtown [[Ames, Iowa]], September 1971. Signals were replaced by more modern devices in 1973.")
RAILROAD GRADE CROSSING SIGNAL
Magnetic Flagman; Wig wag (train); Wig wag (train).; Wig wag (crossing); Wig-wag (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 the approach of a train. 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 safer railroad grade crossings.
