I recognize that the regulator in my Albert Potter probably isn't eligible for this litany of patent US regulators because, Potter, though an American, made this movement after he had relocated to Geneva and I am not aware of any patent protecting it, though I have never looked for one. Still, it is an interesting and unusual regulator, resembling the Mershon regulators shown in Posts 43 and 44. While it is clear how those work (moving the long regulator arm moves the short arm via a rack and pinion interface, it isn't clear how the Potter regulator works since it lacks that interface. I would be a grateful for an explanation. Having no watchmaking skills (or the courage to use them on this Potter if I had any), I cannot disassemble it to find out how it works.
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