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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.
Davis opposed the creation of the signal officer post when it came before congress; he wanted to use the signaling system but feared the creation of the signal officer post would lead to the creation of a new department (the future Signal Corps). Davis's objections were ignored and Myer was made signal officer and promoted to major in June 1860 ...
Wigwag (railroad), a type of railroad grade crossing signal; Wigwag (flag signals), a type of flag signal; Wig-wag (sound stage), a red light indicating filming is in progress; Wig-wag (automobile), headlight flasher; Wig wag (truck braking systems), a mechanical arm indicating low brake pressure
Wigwag_masthead_signal_station,_Richmond.png (365 × 543 pixels, file size: 138 KB, MIME type: image/png) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
A typical US Signal Corps guidon features wig-wag flags. In the 1850s, U.S. Army Major Albert J. Myer, a surgeon by training, developed a system using left or right movements of a flag (or torch or lantern at night). Myer's system used a single flag, waved back and forth in a binary code conceptually similar to the Morse code of dots and dashes ...
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The firm purchased Los Angeles–based Magnetic Signal Company in the late 1940s and moved production to Minneapolis. Magnetic Signal is the company credited with the invention of the wigwag grade crossing signal once common throughout Southern California. "Railroad Accessories Corporation" (RACO) merged with Griswold Signal Company in 1964.