This is a design drawn up by Frank J Sprague.
This file appears in: Frank Julian Sprague

The image highlights his knowledge of electrical components and his attention to detail. Many designs like this helped create railways, elevators, and capacitors.
This file appears in: Frank Julian Sprague
Frank Julian Sprague
Frank Julian Sprague was born on July 25, 1857, in Milford, Connecticut. Shortly after birth, Frank Sprague moved to North Adams, MA, where he spent the majority of his life. Although it was not his…