What exactly is a bim bam?

Why I ask this is I see on ebay people reffer to some clocks as bim bam.

But I'm not sure they are correct.

I have 3 Gilberts that might qualify as bim bams.

1 that goes bim bam (seperate rods) to anounce the quarter hours and on the hour it strikes both rods same time to strike out the hour. It's a humpback.

1 that goes bim bam on seperate rods to strike out the hour and does 1 rod for the half. It's a humpback as well.

1 clock that goes bim bam on seperate rods to strike out the hour and does 1 rod for half. But I know that the strike is reffered to as Normandy chimes (Normandy strike??)

I thought, that at one time somebody explained to me that a true bim bam is like my first clock where it does the 1/4 hour as bim bam and strikes both rods same time for the hour.

If that is so, then what is the name of the strike for the others that dont strike both rods for the hour?

Interesting how the first clock shifts the barrel to strike both and shifts back to do the bim bam...

RJ

Why I ask this is I see on ebay people reffer to some clocks as bim bam.

But I'm not sure they are correct.

I have 3 Gilberts that might qualify as bim bams.

1 that goes bim bam (seperate rods) to anounce the quarter hours and on the hour it strikes both rods same time to strike out the hour. It's a humpback.

1 that goes bim bam on seperate rods to strike out the hour and does 1 rod for the half. It's a humpback as well.

1 clock that goes bim bam on seperate rods to strike out the hour and does 1 rod for half. But I know that the strike is reffered to as Normandy chimes (Normandy strike??)

I thought, that at one time somebody explained to me that a true bim bam is like my first clock where it does the 1/4 hour as bim bam and strikes both rods same time for the hour.

If that is so, then what is the name of the strike for the others that dont strike both rods for the hour?

Interesting how the first clock shifts the barrel to strike both and shifts back to do the bim bam...

RJ

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Thought myself talented turning a tiny watch staff. Then it fell on the ground next to a small cockroach leg. Comparing the craftsmanship of the two was very humbling.