Skip to Content

O-S Fitting Patent

Download pdf (277 KB)

Thanks to Gerry Gill for finding Oliver Schlemmer's patent for the O-S fitting, which made one-pipe hot water heating possible.


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