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LOL.....you do realize that they are VERY noisy? When my Aunt first got married her husband had a huge rolling ball clock that could wake the dead and after a few months it just stopped working. My Aunt always claimed innocence on the demise of the clock
The plastic one uses a synchronous electric motor motor to raise a steel ball up onto a stopped, pivoted track every 5 (IIRC) minutes. Thus, the timekeeping is not controlled by the passage of the ball down the track, only indicated by the number of balls on it. The track was numbered every 5 minutes. The 12th ball causes the track to tip, and one ball is rolled onto the hour-indicating track, while the other 11 fall into a collecting tray at the bottom. The worst is at 1:00, when all the balls save one are dumped with a clatter into the tray.
But this clock had a problem in the cold dry winter. When rolling down the plastic tracks, they pick up a static charge, and when they bump into the other balls in the track, and they thus all acquire the same charge, and repel each other. They then back up the tray, and cause it to tip prematurely.
Another problem is that when all the balls are dumped into the tray, their force can lift the plastic shade, and the balls escape.
Clockies are apt to forget that not everyone can sleep through the sound of many loud chimes. When my plastic rolling ball clock still worked, I had it on a table next to the sofa-bed in the library, which doubled as a guest room. I had a house guest, and we attended a party. On returning afterwards , I shoved bedding at him, and flopped into my own bed, never giving a thought to the many clocks. He got quite a shock at midnight, especially from the tubular bells and Morbier, but, thinking the worst was over, was just beginning to doze off at 1:00AM. That's when that ?>)*$%* ball clock dumped a &#)%! load of steel balls, first on the lower track, then on the drum-like tray, then against the pastic cover, then onto the marble tabletop, and then, one-by-one, at irregular intervals, onto my hapless guest's head.
The bowling ball clock has already been done. Took up most of the basement if I recall correctly. I think it was referenced here some years back. It might even be on Youtube. Not sure.
Yep. Here you go!