Amazing Antique Store Find *Rare*

[dilloncarpenter]

If the motor is running at half the speed but chopping air twice as many times per revolution, you get the same pitch. This will sound the same as a 2T22.

So with this in mind, I've always had this question..what does it do to the air being pulled through, does it create less of a flow? And does it reduce sound output?

[Siren_Dude]

I recorded a video of the CLM yesterday. It is 3 minutes long, and 237 MB in size.
It will not upload to my Flickr page, and I don't have any other "hosted" accounts.
What other service would you suggest? (I'm not very computer skilled, and don't usually do video. No cell phone either.)

PM'd

[DJ2226]

If the motor is running at half the speed but chopping air twice as many times per revolution, you get the same pitch. This will sound the same as a 2T22.

So with this in mind, I've always had this question..what does it do to the air being pulled through, does it create less of a flow? And does it reduce sound output?

I'm no expert... but,

Should depend on how big and well made the "blower" part of the chopper is. It would be like having two 12 inch desktop fans, where the one that is spining at half the other's speed will put out less air, unless the one spinning at half speed is made to do it efficiency (metal fan vs cheap plastic ones, or normal table fan vs small furnace blower). With sirens less air=less noise.

If this siren has the same size choppers as his other CLM, than in theory this should put out less sound, but the thing to keep in mind is the efficiency of the "blower" built into the rotor.

[german_siren]

so what is now with this siren? no updates? no video?

[kx250rider]

Shocking find!!!! Congratulations, and I'm sure happy that it was found by one of us, and not someone who might turn it into a lamp, or something weird.

Charles

[Daniel]

Sorry to bump the thread, but has a video of this been posted yet?

[Siren_Dude]

Sorry to bump the thread, but has a video of this been posted yet?

Not yet, I still need to get the motor fixed because its seized. The guy said it wasn't always locked up but it was at his antique store for over 20 years. I have started disassembling the siren but one of the rotors is being very difficult to pull out. That difficult one broke my only puller so I need to buy a new one. Hopefully within a week or two I will have it apart and the motor fixed. At that time I will post a video of it running off a drill, which would be fully power because its only 1500 rpms. The stators have two or three small cracks but they still seem strong. I am not worried about them because its a low rpm siren and the rotors, which are in good shape take all the force.

I'll start a new thread for the restoration once I get it completely disassembled.

[german_siren]

so what is with this siren now any updates?

[Siren_Dude]

so what is with this siren now any updates?

As of right now I have yet to get the rotor off. I bought a new puller and have made several attempts but they all resulted in cracking wood or bending metal. The issue is they had the wrong bolt securing the rotor to the motor shaft, it was too small and left the motor shaft and rotor connection open to the elements. I still have a couple ideas before the final solution of drilling out the key.

[CrazyCalvinWilliams]

Siren_Dude, how tall are those rotors? From your photo two posts above, it looks at least 1 1/2 - 2ft tall!