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...
Doody System Damper Regulator Patent (1909)
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.
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