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Here are a couple of ads from Johns-Manville Insulation touting the benefits of using asbestos insulation on the steam pipes of the Bank of Manhattan Building, the Chrysl...

Here is a circa-1949 patent from The Cleveland Heater Company for a water heating device with a corrosion protective anode. Gerry Gill tells us that this company was at t...

Here is a well-written booklet from The Patrol Valve Company that explains how anodes work. Thanks to Joe Szakacs for sharing this with us. 

 

Here is a circa-1949 patent for an anti-corrosion device in water heaters. Thanks to Joe Szakacs for sharing this with us.

Here is a circa-1929 patent on an early anode, courtesy of Joe Szakacs, one of the great old-timers.

Here is a catalog from Amstan (American Standard), published in 1957, that features their wet heat and cooling products. This document is divided into 5 parts. Many of th...

Thanks to John Ewing for sharing this with us. He notes, "The long-dead designers of the steam locomotive involved included a key safety feature, and it worked, many year...

This is an excerpt of the Beacon Boiler Reference Book, Sixth Edition and includes ratings for boilers made prior to 1959. This section contains pages 27 through 45 and i...

Here is a catalog from Amstan (American Standard), published in 1957, that features their wet heat and cooling products. This document is divided into 5 parts. Many of th...

This section covers Heat-Loss Determination