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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 ...
Wig wag (washing machines), a solenoid design used in some brands; Wigwag, the Canadian version of the English Curly Wurly bar; Wigwag, a tool used in watchmaking for polishing parts; WigWag, a Nottingham–based website development and communication company; Wig-wag, a tool used to stack sheets of rubber compound into boxes or onto pallets.
The vehicular signal head has three sections, consisting of two horizontally arranged circular red sections over a single circular yellow section that is centered between the red lights. The MUTCD requires at least two HAWK signal faces facing each vehicular approach to the crossing. Normal pedestrian signal heads control pedestrian traffic.
"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.
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 ...
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.