blackstone
Well-known member
For years, I have been trying to find out what exactly this is. Some type of fire alarm, I would assume.
When the knurled knob is moved by hand, a loud metallic noise is produced. This must the alarming noise. There is a hanger on top, suggesting a permanent installation hanging from a ceiling. I just don't know how this alarm would be activated by a fire.
Any fire alarm experts around here?
Thanks,
Fred

When the knurled knob is moved by hand, a loud metallic noise is produced. This must the alarming noise. There is a hanger on top, suggesting a permanent installation hanging from a ceiling. I just don't know how this alarm would be activated by a fire.
Any fire alarm experts around here?
Thanks,
Fred
