The Craftmans Shop > General Crafts
Clocks & Pocket Watches
sbwhart:
For a pendulum clock it the length of the pendulum, not quite shur what it is for a spring clock i'll have to look that one up.
Stew
Darren:
--- Quote from: craynerd on November 06, 2009, 08:05:47 AM ---
Pretty clever stuff!
--- End quote ---
Certainly is !!
The study needed to make one from scratch must be immense :smart:
bogstandard:
I have somewhere in my house an old solid silver pocket watch, I think from the 1880's. It has a very nice chain driven fusee movement. Retailed by a jeweller who traded at some time in my home town, so it hasn't travelled far in it's life. By the scratched on markings inside the case, it has been repaired and regulated a few times.
It tells perfect time, even as accurate as the atomic clock, but only twice a day (it does work well though, when wound with the key, but not quite so accurate)
The value in the UK, the scrap value of the case, around 30 to 40 squid. The insides are discarded and the cases melted down. It is better value to have it as a keepsake and talking point rather than selling it.
I must root it out one day and see if it is still telling good time.
Bogs
raynerd:
--- Quote ---For a pendulum clock it the length of the pendulum, not quite shur what it is for a spring clock i'll have to look that one up.
--- End quote ---
Stew, when fixing a few spring clocks, there is a little lever that moves up and down and contacts the spring at various positions. Effectivelty, it makes the recoil of the spring faster or slower. With the lever contacting to make less spring length, the balance moves faster and vice versa. I don`t know any of the physics behand it but when looking at one for real it does make sense.
Part 2 on the picture shows the lever I was talking about that makes contact with the spring to shorten or lengthen its length.
Chris
Bernd:
--- Quote from: craynerd on November 06, 2009, 03:13:45 AM ---Hi Bernd
Thanks for the extra pics it has given me some ideas. I really like that - how long have you had this clock?
--- End quote ---
We got that clock at an auction at least 5 years ago. Needs a bit of tender care. It runs but stops often. There are many loose fitting parts that need a bit of tightening up. It's on my to do list way near the bottom.
Bernd
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