Research to find the first elevator installation in Capitol Hill uncovered the first reference of elevator noise disturbance. The noise disturbance led to what is assuredly the earliest referenced elevator modernizations, replacing the screw drive with a hydraulic system.
Follow the link below to read the entire article from the Architect of the Congress blog
Historic Firsts: Capitol Hill Elevators
“Before I started my research for this article, I had already outlined it in my head. An introduction highlighting the 160th birthday of the passenger elevator followed by a short summary of our own first passenger elevator. As I explored the history of the first Capitol Hill elevator, I soon discovered its location was a mystery.”
Understanding and Controlling Elevator Noise 