the "dinner bell"

In the center of Mom's flower garden is an old school bell that came from her parent's farm. They call it a dinner bell. I suppose, to let the farmers know that dinner was on the table.

I have never heard the bell ring! "Dinner", is at noon, not 12:08, or 12:27, but noon. No one in my family has ever been late for dinner,so the bell remains speechless!