O-S Fitting Patent

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

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Jarecki Radiators (1890)

Here are ratings for the Erie radiator from Jarecki Mfg Co Ltd. They were based in Erie, PA and their radiators appeared in issues of Domestic Engineering in the 1890s. 

 

Published on 04/22/2024 4:07 PM
Posted in Heating Museum