The Siren Board

Well, i've thinking back on my mistery siren.

The pic of it is a drawing of mine, where i showed an screamer-like siren, just having the motor down and, as far as i can remember, had nothing in the upper part. i saw this machine twice in y life, the first one around 1991 in a fire dept far from home, and in 1994 again, this time being able to hear this.

If you inmagine a screamer having a more wider rotor surrounding and the blades more obliquous, entering from the left to the right, that's what i saw in those years. I believe it has around 10 or 12 ports, far more high pitch than the siemens fm si 41.

The Argentinian grid works at 50hz, it has both 220v home service and 380 volt service. This pushes me to suspect this siren can be any kind of attemp to copy the screamer... or can it be a latin american version of it?

i've been shattering my head trying to find out wich fire depts used them here in argentina, but doesn't seem to know much about them. it's far more easy to find out a rusty siemens, a rusty kingvox or a shining blue kingvox installed yesterday... but this "T" siren its a hard to solve mistery.

https://www.youtube.com/watch?v=hrTnZdP ... re=related

At 00:08 it looks like that in this eastern europe, i believe poland, czech republic or somewhere close, is the siren i mean. Does someone know what can this be? Can this be made by a very old company called Tesla?

it might possibly be a screamer 105 as seen here
http://www.airraidsirens.com/forums/vie ... hp?p=19226

well, it's similar. Please inmagine the 105 without any skirt, hat, covering, and having that outer stator more bigger and the obliquious blades of it goin more deep.

i start thinking that this siren could come somewhere from somewere in eastern europe, are pics of them available somewhere?

Looks to me like an Ericsson Double Disc. Given that Ericsson is a European company, I wouldn't surprised if they sold that siren in Europe.

do you mean Lars Ericsson of Sweden making air raid sirens?

i must confess... something always made me think this could be a scandinavian machine... but my searchs about that possibility drove me to kockum horns. is available any good pic of the ericcson dual disk?

also... is available any brochure about ericsson sirens? does exist a swedish siren board somewhere in the internet?

lucas wrote:do you mean Lars Ericsson of Sweden making air raid sirens?

i must confess... something always made me think this could be a scandinavian machine... but my searchs about that possibility drove me to kockum horns. is available any good pic of the ericcson dual disk?

also... is available any brochure about ericsson sirens? does exist a swedish siren board somewhere in the internet?

I think Wisconsin Sirens had some pics of a Double Disc on the site before Ben took it down. I didn't save any of the pictures, but perhaps someone else did.

please have a look at this:



This fire dept belongs to a northern province of argentina, the siren you see there is very similar to the one i'm researching. however, it doesn't have the static blades surrounding the turbine, maybe this is the siren i'm searching and by some reason the blades were wipen...

I found this here:

http://hermandadebomberos.ning.com/grou ... e=activity

it's a spanish language fire community. Hope this helps.

Urbanexplorer wrote: I think Wisconsin Sirens had some pics of a Double Disc on the site before Ben took it down. I didn't save any of the pictures, but perhaps someone else did.

I found an online photo of a "Ericsson Double Disk" that was actually an Erick siren with a middle louvre around the screen. Perhaps Ericsson of Sweden never made sirens, and the name was a misinterpretation of the 1920's Erick company of Minneapolis. I would be curious about the relationship between Erick and Decot, since some of Decot's single-tone sirens resemble Erick sirens. Perhaps he bought out Erick.

http://www.freewebs.com/mike_nelson/35mmpictures.htm

i know this pic, i didn't quote it thinking it was already known in this board.

if i don't misremember, the bottom of the disk was solid, but somehow it looks like we are slowly approaching to this machine.

I saw two of them on the southerns suburbs of buenos aires, once i had to vist a cousin in the hospital around 1991, and i remember a fire dept using it, but i was looking by internet and i'm not able to find it. Some fire units of argentina had replaced the siemens fm si 41 sirens they had for kingvox, sos or emave, all of them are national siren producers, or sometimes they matter together the national ones with the siemens.

but now, we have a real mistery and even i can't get healthy pics... something makes me think this siren is a scandinavian machine, wich siren makers exist or did exist in the scandinavia countries?

http://www.euro-t-guide.com/See_Photo/D ... 010_03.jpg

This is a danish siren, it is the most similar one to the "T".

Who built it? Did id see, possibly, a special version of it?