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[offshore]

Anyone ever see one of these?

I had one land on my bench today, for a motor overhaul.
The early model motor did one revolution/minute...exactly!
That top rack of balls is 1 per minute for 5 minutes, it then tips to the next level which is 12 lots of 5 minutes = 1 hour, and down to 12 hours.
Then start again. 29 balls required.
They are a most intriguing "toy"
O/S