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  1. M

    wood works wheel teeth

    heres a question. I notice some wheels have their teeth inclined. Is it always correct that the teeth incline in the direction of that respective wheel's rotation?
  2. M

    wood works wheel teeth

    Im going to put this on hold for now as I ordered a donor movement. Looks to be the same as mine, but we'll see
  3. M

    wood works wheel teeth

    You moght be correct. I acquired this clock from someone who got it from someone else.. no history. I rebushed all the holes myself, I know the are at least close and if I move the bushing to account for this then I would have a problem with the whell #3. Unless I move the bushing set for the...
  4. M

    wood works wheel teeth

    Ive been working on this Terry type wood movement and it has been a challenge. FInally got the time train together enough for a test run and of course it runs a bit then stops. Traced to the tooth engagement of the main arbor wheel with the 2nd wheel. There is a lot of slack in the teeth as well...
  5. M

    Hardware problem with odd thread size

    Now thats good. You still use the thread cutting attachment correct? then that boring bar can cut any threads 20-56 TPI
  6. M

    Hardware problem with odd thread size

    So I finally got a quote from one place, Tapco cutting tools. $180. I like the idea of a speed nut. And Ill wait til I can get a thread cutting attachment for this kind of problem, one always needs more tools!
  7. M

    Hardware problem with odd thread size

    Not so much on Grainger either. They said not. I have reached out to 2 other custom tap makers but they have not answered yet. Same old story. "Fill out this form! We'd love to hear from you! We'll get back to you shortly! Etc Etc. ha.
  8. M

    Hardware problem with odd thread size

    Thanks I had thought of that. I do have the sherline and might have to pop for the thread cutting attachment
  9. M

    Hardware problem with odd thread size

    Not so much on mcmaster carr. They said they dont do custom taps
  10. M

    Hardware problem with odd thread size

    So looking for either 8-28 or 4x0.9 nut. I'll settle for a screw I could turn into a tap and drill out a brass nut with new threads
  11. M

    Hardware problem with odd thread size

    Already tried that. Thread count of 28 tpi corresponds to 0.9 pitch in metric. What the local box store has is 4x.07
  12. M

    Hardware problem with odd thread size

    Should have said #8 screw size.
  13. M

    Hardware problem with odd thread size

    Ive got this Hamburg American clock with a thread I cant match up. These are the posts that go through the case and a plate slips over them on the back inside with nuts. The diameter of this guy is .160 which is close to a #10 screw size. But the TPI is 28. I have searched for #8-28 with no...
  14. M

    jules jurgensen watch regulation

    Thanks again guys for all the advice. Anyone want to take a stab at the movement#? manufacture? Or even how old or what model this watch is? I think it unusual that there is no second hand
  15. M

    jules jurgensen watch regulation

    Thank you all for the advice I now understand the mechanics of it. After adjusting the regulator last night, now 12 hours later its spot on. Im not going to attempt at this point adjusting the beat error, I dont trust the app that far. This one (its called watch accuracy meter) doesnt give the...
  16. M

    jules jurgensen watch regulation

    Now its getting more interesting. After looking at some timegrapher videos, I get the concept of the beat error amplitude and all that. Now I found a phone app that shows the rate and beat error. I dont know how accurate but I was able to adjust the rate very close to a few sec/day by moving the...
  17. M

    jules jurgensen watch regulation

    Hold on a min. The arm with the 2 rivets: If the spring is allowed to oscillate about this point, then that is the "effective" length as any spring dimension plays no part, just sits there. SOunds like I need to study this a bit more and get a better look
  18. M

    jules jurgensen watch regulation

    Its hard to see but I can make out that the arm with the rivet holds the end of the spring. So I know that one regulates the speed. The other is harder to see but I suspect it is attached to the balance staff so moving it affects the beat. This is why when I can cranked it around too much it...
  19. M

    jules jurgensen watch regulation

    Thanks it all makes sense now. Im used to clocks and setting beat etc. and the same theory applies here with the pallets and forks and the escapement needing to be centered, Im actually going to sell this watch, and Ill prob take it to a watchmaker if I cant get close. Thanks so much!
  20. M

    jules jurgensen watch regulation

    So, when I move the arm with the single rivet, I change the effective length of the spring. I get that. But, when I move it, the other arm moves as well. This is the beat adjustment ( comparable to the tick-tock in a clock). If I want to keep it in beat but speed up the regulation, I would move...

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Hard Life for Wristwatches by Roy Gardner