Is it your's ?Any ideas what this is?
Will be once I take it off the walldmxtothemax said:Is it your's ?
Sure would look nice cleaned up !
The question I have is why would there be a fire pump in an apartment building? Unless the building was something else at some point
I love a good mystery.
I expanded that photo a bunch and could read the name "Sundh Electric Co., Newark NJ". Looks like Sundh Electric made Fire Pump controllers. That would explain the presence of what was probably a pressure gauge on it. So the switch was not likely a reversing switch, I'd say it was used as part of a reduced voltage starter, either a reactor, resistor or autotransformer starting method that had two steps. Now it is all done with contactors, but years ago it was all done manually, a device called a "Manual Compensator". Most likely the reactor/resistor/autotransformer was below the slate board and is now gone, maybe scrapped for the copper if it was a reactor or transformer.
Sundh appears to have merged with another firm and became the Clark Controller Co. in the 1920s, after what appears to be an unsuccessful attempt to sue Cutler Hammer over a patent infringement of some sort over an electromagnet design. It was a case that went to the Supreme Court and is cited in numerous case laws over patents. Clark was later bought by Sylvania, then when Sylvania was bought by Siemens, Clark was spun off to Joslyn to become Joslyn Clark, now owned by Danaher. But Joslyn Clark is still in the Fire Pump Controller business to this day. Danaher-Joslyn's web site history only goes back to the Clark Controller being founded in the 1920s though.
There is a YouTube video of someone starting a Fire Pump using an old Sundh controller. It's dark, and it looks bigger, but you can make out some similarities.
I've wired fire pumps in new apartment buildings.The question I have is why would there be a fire pump in an apartment building? Unless the building was something else at some point