Thomas Alva Edison
If you do not know what a klaxon is, just think of those old war movies where a submarine is diving and the sound you hear is AAAHH--OOGA....AAAHH-OOGA. Klaxons were installed on cars to warn people of their approach-similar to horns today. This was to warn folks at the Edison site that a car was approaching
Got to love those old cathedral windows in the Edison Invention Factory building-so characteristic of the time period-late 1800s. Power plants of the early 1900s also used a similar architecture, only much larger in size-when such plants were referred to as cathedrals of energy.