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A siren explodes during testing

Posted: Thu May 25, 2023 3:44 pm
by Hacksaw
A Bullard siren exploded during testing, in 1941:

https://www.newspapers.com/article/cont ... 125059343/

Re: A siren explodes during testing

Posted: Fri May 26, 2023 12:47 am
by clarksburg_1000t
What model is it, I really want to know as it said more about the injured than the actual siren.

Reminds me of the video where an STL-10 blew up during testing.

Video:
https://www.youtube.com/watch?v=U2XX3AUbEo8

NOT MY VIDEO!

Re: A siren explodes during testing

Posted: Fri May 26, 2023 11:11 am
by jerrylovessirens
Probably had a casting flaw. Decot had a large pit that he would lower each siren into for testing just for the this type of failure. Asc has a similar sound-proof enclosure

Re: A siren explodes during testing

Posted: Sat May 27, 2023 4:10 am
by Unit of Civil Defense
jerrylovessirens wrote:
Fri May 26, 2023 11:11 am
Probably had a casting flaw. Decot had a large pit that he would lower each siren into for testing just for the this type of failure. Asc has a similar sound-proof enclosure
....As far as the explosion goes, would this be along the same lines as a clutch exploding in a manual transmission during high r.p.m's such as in a racing environment.

Re: A siren explodes during testing

Posted: Sun May 28, 2023 1:45 am
by Hacksaw
It was a Bullard siren.

Many years ago, speaking with one of J. N. Hedberg's workers, said they had a big siren, like the ones in my avatar, where the rotor/impeller maker had ran out of metal for the casting, had to melt more metal, then finished the casting. It also exploded during testing.

Re: A siren explodes during testing

Posted: Sun May 28, 2023 8:55 pm
by TheSirenFan
Hacksaw wrote:
Thu May 25, 2023 3:44 pm
A Bullard siren exploded during testing, in 1941:

https://www.newspapers.com/article/cont ... 125059343/
Hold on a minute...

So we obviously know that nowadays it is E.D. Bullard, but something struck me as a bit weird here. If you look closely, you can CLEARLY see that it says: "W.D. Bullard". Could this be an error when it was written, or does this mean that it originally stood for something else?

Re: A siren explodes during testing

Posted: Sun May 28, 2023 8:56 pm
by LukeH
TheSirenFan wrote:
Sun May 28, 2023 8:55 pm


Hold on a minute...

So we obviously know that nowadays it is E.D. Bullard, but something struck me as a bit weird here. If you look closely, you can CLEARLY see that it says: "W.D. Bullard". Could this be an error when it was written, or does this mean that it originally stood for something else?

I had noticed this myself. I have a feeling it was a missed typo.

Re: A siren explodes during testing

Posted: Sun May 28, 2023 9:22 pm
by 07VFDInLCD
On most keyboards, the E key is right next to the W key. I'm 99% certain W.D. Bullard was a typo.

Re: A siren explodes during testing

Posted: Sun Jun 04, 2023 4:56 am
by NoVoy12
Woah mate the service drop exploded by the looks. Wires heated up and melted together perhaps?
clarksburg_1000t wrote:
Fri May 26, 2023 12:47 am
What model is it, I really want to know as it said more about the injured than the actual siren.

Reminds me of the video where an STL-10 blew up during testing.

Video:
https://www.youtube.com/watch?v=U2XX3AUbEo8

NOT MY VIDEO!

Re: A siren explodes during testing

Posted: Tue Jun 06, 2023 1:01 am
by HDN
NoVoy12 wrote:
Sun Jun 04, 2023 4:56 am
Woah mate the service drop exploded by the looks. Wires heated up and melted together perhaps?
That's what I thought too - the sparks came from the conduit a few feet below the siren, not the siren itself, although it wasn't doing much better!