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anking 04-10-2011 10:33 PM

Strange device on top of wall
 
1 Attachment(s)
Cant figure out what kind of device is it.
Please help )
Image in attachment

DexterII 04-10-2011 11:42 PM

I'm thinking that it might be a door bell, or maybe a remote telephone ringer, from when we had rotary phones and party lines. When was that, the 80's? Or maybe a bit earlier. :-)

mickey cassiba 04-10-2011 11:52 PM

See any black sedans parked across the road?:eek:

vsheetz 04-11-2011 12:13 AM

The aliens put something like that in my house to monitor me... :eek:

vsheetz 04-11-2011 12:14 AM

Alarm, door-bell, some kind of sensor. Got wires? Where do they go?

Wildie 04-11-2011 09:16 PM

To me it looks like an air conditioning register!

CoconutPete 04-12-2011 10:33 AM

I'm tempted to say that's a "common bell" or whatever you want to call it for the phone lines. My grandparents had one - the phones rang as well, but that thing RANG when someone called.

DangerMouse 04-12-2011 10:48 AM

Unscrew cover, show us what's inside. Po)

DM

Maintenance 6 04-12-2011 03:25 PM

It's a heat detector. The house I grew up in had one in every room plus an annunciator and a test button in the upstairs hallway. Somewhere there should be a box with a large battery in it. Like a lantern battery. Probably installed 1950s.

Wildie 04-12-2011 11:36 PM

Quote:

Originally Posted by Maintenance 6 (Post 628012)
It's a heat detector. The house I grew up in had one in every room plus an annunciator and a test button in the upstairs hallway. Somewhere there should be a box with a large battery in it. Like a lantern battery. Probably installed 1950s.

I installed lots of heat detectors (rate of rise for fire alarms) but never happened upon one like this. Of course, in the 50's I was in high school.

It appears to have adjustable louvers. I wonder what the function of these would be.

Maintenance 6 04-13-2011 07:56 AM

Quote:

Originally Posted by Wildie (Post 628361)
I installed lots of heat detectors (rate of rise for fire alarms) but never happened upon one like this. Of course, in the 50's I was in high school.

It appears to have adjustable louvers. I wonder what the function of these would be.

I agree it doesn't look like heat detectors do today. The louvers let air circulate through the device. They aren't really adjustable. If the temperature gets above a certain level, a set of bi-metal contacts close and send a signal to the control box which activates the alarm. At our home it was a loud sort of buzzer mounted outside the bedrooms. Just below it was a test button. The old man made a habit to pushing the button every few days. This was in the days before smoke detectors. I remember holding a match under one of them to see if it really worked. It did. Today everybody realizes that smoke if far more deadly than heat, but in the 50s and 60s it was probably state of the art for a home.


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