April 8, 2013
In response to excessive sparks flying out of train chimneys the spark arrestor was developed. When trains would move through towns that where built primarily of wood (as was the norm during the rise of railroads and their increase in usage) they had a tendency to set things on fire from the above mentioned sparks. This led to a reduction in towns willing to have rail lines running through the town or to be within a certain distance from the town. The spark arrestor (the ‘cap’ looking thing on top of the chimney/smoke stack) helped dramatically reduce this problem.