Skip to Content

Doody System Damper Regulator Patent (1909)

Download pdf (670 KB)

Thanks to Gerry Gill for finding the patent for this ingenious device that combined a damper regulator with a pressure gauge, water gauge, safety device. It was issued to B.R. Doody for low pressure steam and analogous systems in 1909.


Leave a comment

Related Posts

A History of the Radiator

Brian Roberts & Paul Yunnie compiled this document that contains beautiful vintage advertisements and illustrations of radiators from the mid to late 1800s and early 1900...

Published on 02/07/2024 2:34 PM by Brian Roberts & Paul Yunnie
Posted in Heating Museum