DonCorson
[AHCI]
3358
Such a system can work...
as shown by the old stackfreeds which were more or less exactly what you suggest.
The main problem with the system is that you are adding friction to reduce the torque that gets to the escapement when the barrel is highly wound. You reduce this friction as the barrel winds down. But this friction means energy lost and reduced autonomy, reduced the power reserve.
Any of the many different constant force systems used these days is a better solution as less energy is lost to friction. thus increasing the power reserve.
There are several good articles to be found about, for example, the Lange 31 and the mechanism used for its 31 day power reserve.
Check them out.
Don
control the torque.!!!
hello~~ everybody.~~ i have something(idea) to share with people who like the watch. actually i have a idea, but i am not sure that is good or bad. there is nobody who i can ask...... at first i am sorry that my bad English. the idea is the way to control...
I think your drawing is clear, and I understand the question
it would probably take much experimentation to discover the right friction and the curve of the cam which reduces that friction on the pinion. But it seems logical that this could work - the question then is will it add so much friction that it reduces th...
It already exists!
Search for "stackfreed" mechanism. However, I believe this is more appropriate for the past when metallurgy for hairspring technology etc are limited, so constant torque was more important to achieve isochronism. Today in modern world, it is not as big a ...
thank you for tell me "stackfreed"
i have experience.....this days... there is many watches(manual winding) which has long power reserve, 8 or 10 or 15 days...... when the watch is fully winded, there is knocking problem. there is problem very often.!!! (automatic watch also has same probl...
I think problem is the adjustment of the friction spring
If you use the friction spring on the seconds hand, it is a known solution to prevent "flutter" of seconds hand (no shaking). However, the second hand in a watch geartrain is heavily geared up - When mainspring power is high torque but low speed, the gear...
Thank you for advice~~
I can understand what you said.~~ and i agree with you.!! You can check first drawing, friction spring not touch the second wheel, it touch the 3rd wheel, i think friction spring can be touched at great wheel(2nd wheel)..... I just want to make friction s...
The Richard Mille RM 008 offers a torque indicator too
Credit: Richard Mille Best wishes Alkiro ...
What about the click?
It seems like the click is the most logical component to register varying pressure from the barrel without affecting the rest of the train.
Such a system can work...
as shown by the old stackfreeds which were more or less exactly what you suggest. The main problem with the system is that you are adding friction to reduce the torque that gets to the escapement when the barrel is highly wound. You reduce this friction a...
Thank you for advice.~~~
You are right.!!~~ It is very similar with "stackfreed". But .... not exactly same.!! This idea was started by knocking problem.! I just want to reduce over torque which make knocking.! Because it is very easy to find knocking problem some calibre..!! And...
torque regulating device
I think, that with friction alone it would be impossible to limit the torque with sufficient accuracy to provide continuous torque for the escapement