John Harrison:
I may not be spared to complete another watch, but I've begun one. It will not, gentleman, be a copy, because I am mindful of the Act of Queen Anne, to which I've clung for over 50 years like a, like a shipwrecked sailor to a barrel -- "to be practical," and that's been my gospel and my creed. I have an idea that the heat compensation must be within the balance of the watch and not around it. And this morning I made this.
[He shows a heat-compensated balance wheel.]
John Harrison:
I tried the idea in my first sea clock, over 40 years ago. I failed. I didn't undertand it; so much I didn't understand. A compensating balance wheel will simplify the adjustment of the machine, so others may make my watches more easily... should God grant me the time to complete my labours.
Riportata da il
05/03/2025 alle ore 09:33