Denver duplex motor (help)
Posted: Sun Mar 30, 2025 10:25 pm
Hello all, I have a good topic to uncover, I can’t find a motor that matches this one on a Denver duplex. I would like to find a compatible motor it is a three phase siren.
Discussion of Outdoor Warning Systems
https://www.airraidsirens.net/forums/
I'm only trying to restore the old motor because it is vintaage. not a full restoration, I am just trying to get the motor running again. about 15 years ago it ran for 2 hours continiosly and the motor burnt up and shorted out. Would it be possible to bring it back?
I can't see why not. Electric motors are rebuilt all the time. To have it professionally done will probably set you back a few hundred dollars.fullsendersonly wrote: ↑Mon Mar 31, 2025 1:47 pmI'm only trying to restore the old motor because it is vintaage. not a full restoration, I am just trying to get the motor running again. about 15 years ago it ran for 2 hours continiosly and the motor burnt up and shorted out. Would it be possible to bring it back?
thanks for the info because this will probably be the only siren that I will ever have to do this much restoring for.HDN wrote: ↑Tue Apr 01, 2025 12:36 amI can't see why not. Electric motors are rebuilt all the time. To have it professionally done will probably set you back a few hundred dollars.fullsendersonly wrote: ↑Mon Mar 31, 2025 1:47 pmI'm only trying to restore the old motor because it is vintaage. not a full restoration, I am just trying to get the motor running again. about 15 years ago it ran for 2 hours continiosly and the motor burnt up and shorted out. Would it be possible to bring it back?
I'm guessing the motor will need new windings and bearings at a minimum. You'd have to pull it apart to know for sure. Fortunately it looks like the motor is connected to the rotor with a coupling, unlike many sirens where the rotor is pressed onto the motor shaft, so that's less to take to a shop to get it looked at.
they are my photos dude so please stop saying I stole them I'll attach a video of mine about it. and they were originally going to powder coat it and put it on display but that never happened I got into contact about it so please don't accuse. here is the video proof. https://www.youtube.com/shorts/JATzQGsKmKsLukeH wrote: ↑Wed Apr 02, 2025 10:22 amPretty sure this is a kid blowing smoke....last time I spoke with the fire department, there were no plans to restore this. It was decided to make it a static display and leave it at that.
The reason the siren ran for 2 hours was most likely due to water infiltration in the motor. It ran until power was cut to the tower and locked up upon wind down.
The motor is a 1920s era General Electric. Those are actually fairly common given they were produced in high volume for a multitude of uses.
Infact, I'm 99% sure these photos were stolen from Tristan G.
also I managed to remove the obstruction in the rotor and spun it up by hand. video: https://www.youtube.com/shorts/37wEmsH6rXQLukeH wrote: ↑Wed Apr 02, 2025 10:22 amPretty sure this is a kid blowing smoke....last time I spoke with the fire department, there were no plans to restore this. It was decided to make it a static display and leave it at that.
The reason the siren ran for 2 hours was most likely due to water infiltration in the motor. It ran until power was cut to the tower and locked up upon wind down.
The motor is a 1920s era General Electric. Those are actually fairly common given they were produced in high volume for a multitude of uses.
Infact, I'm 99% sure these photos were stolen from Tristan G.
fullsendersonly wrote: ↑Wed Apr 02, 2025 1:44 pmalso I managed to remove the obstruction in the rotor and spun it up by hand. video: https://www.youtube.com/shorts/37wEmsH6rXQLukeH wrote: ↑Wed Apr 02, 2025 10:22 amPretty sure this is a kid blowing smoke....last time I spoke with the fire department, there were no plans to restore this. It was decided to make it a static display and leave it at that.
The reason the siren ran for 2 hours was most likely due to water infiltration in the motor. It ran until power was cut to the tower and locked up upon wind down.
The motor is a 1920s era General Electric. Those are actually fairly common given they were produced in high volume for a multitude of uses.
Infact, I'm 99% sure these photos were stolen from Tristan G.
I am sorry for firing up. I have just had a hard time with making friends or people who will believe me. Also thankfully there is a few electric motor shops in Boise Idaho for me to take it to.LukeH wrote: ↑Wed Apr 02, 2025 8:41 pmfullsendersonly wrote: ↑Wed Apr 02, 2025 1:44 pmalso I managed to remove the obstruction in the rotor and spun it up by hand. video: https://www.youtube.com/shorts/37wEmsH6rXQLukeH wrote: ↑Wed Apr 02, 2025 10:22 amPretty sure this is a kid blowing smoke....last time I spoke with the fire department, there were no plans to restore this. It was decided to make it a static display and leave it at that.
The reason the siren ran for 2 hours was most likely due to water infiltration in the motor. It ran until power was cut to the tower and locked up upon wind down.
The motor is a 1920s era General Electric. Those are actually fairly common given they were produced in high volume for a multitude of uses.
Infact, I'm 99% sure these photos were stolen from Tristan G.
I stand corrected. Hopefully this comes to fruition and that thing gets a second chance at life. I look forward to seeing it's progress.
You'll have to forgive me, there has been a lot of erroneous BS posted on this forum as of late, so it's hard to take a lot of posts like these seriously.
I do have a motor tag shot Tristan sent me, that said
The accompanying motor would likely be better to repair than replace, as it should be original to the siren. The WM A Box tag on the siren places this siren 1920 and later, as earlier sirens had "Dillon-Box" on the tag.