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 the forefront of anode protection. Joe Szakacs first shared this information with Gerry, and now he has shared it with us. Rest in peace, Joe. Thanks.
The Improved Webster Type "R" System of Steam Heating is a service bulletin from Warren Webster and Company (The Pioneers of Vacuum Steam Heating), established in 1888.
This manual was created by O-E Specialty Manufacturing Co. and outlines how to install the "O-E" Perfect System, which is a Vapor Vacuum heating system.
Here is the original Installation and Operating Instructions and Parts List for The H.B. Smith Company's Oil Fired Cast Iron Hot Water Boilers (No. OHB-13W). This is esti...