Jump to content

Suspension spring and thickness


Tmuir

Recommended Posts

As mentioned in a post the other day it is hard to get suspension spring in any size other than 0.15mm.

I'm just wondering how much difference it would make to the clock if you used thicker or thinner suspension spring.

Obviously if it is thicker it would take more force to move the pendulum the same amount of arc so a thicker spring would result in a smaller arc of movement of the pendulum and a thinner one more, but the question is how much difference?

I've got a English fusee clock that has a 0.1mm suspension spring fitted whilst cousins sells 0.15mm for English fusee clocks.

Checking the slit in the pendulum rod with a 0.15mm watch spring I can see its fits nicely, so its possible my clock was just fitted with the wrong size spring at some point in the past.

I'm thinking of just sucking it and seeing if 0.15mm suspension spring will work, or does anyone has a way of working out the optimum suspension spring thickness as unlike mainspring sizes which has formulas to use I can find nothing on suspension springs.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • Dell fancy a challenge🤣   https://www.ebay.co.uk/itm/285785684626?itmmeta=01HT29WVJY21Q94C73GYHGBTFX&hash=item428a277a92:g:15YAAOSwNRVmBAUz&itmprp=enc%3AAQAJAAAA0DIe4QLQBW66rSyIMiyBuk8GY%2B86pQ%2BQnxGbcNq7egAGe5DIs9YMmiWJIbZtMSxwNJIiJxuojbq523IeUSBQ6pJEIQ0tfz2ChrBR03BksmKINyklg1IK4GAfAcYY9Hta9wVeSZSZN7ZCNAfZTgKs9c4%2BUIUZ3Qjc3QjUXDn2uPRo1FiYOEewMG5A26EXb%2BclBgrqtbOmM6P3bea%2F8ZImOAXNI1HtbmtMk84pIGoM6ISwaM1PKFuADtTFMccS5e3ZjndCbXYXHrW3CecsV0edw3M%3D|tkp%3ABk9SR8q588nQYw Darwin’s theory of evolution has not been proven to be absolutely.  😀 
    • A already know the size movement I have the problem is the dial a had purchased has a dimension 20.6mm wide a want to find a watch case that going to fit the dial perfectly 
    • Hi.  I would like to take issue here regarding battery driven , watches, clocks,etc. I will and do repair these clocks in fact I have sever al in my collection as well as the regular mechanical ones. I have one on my mantle piece over 60 years old tha belonged to my wife’s Aunt,  long gone Iam afraid and it has been cleaned etc and never missed a beat and is accurate. Every one has their preduices as regards Electrical /electronic Horology but I regard it as part of the progress time line of the art of Horology and to be treated as such. Like Darwin’s theory of evolution it evolved.  Two cavemen knocking rocks together and a shard broke off , looking at it he worked out if it was stuck on the end of a stick he would have a spear. Likewise his pal seeing what he was up to picked up a piece  and did the same, now that’s evolution. Some clockmaker decided to build a clock that ran with a battery and no spring to wind up and break, progress and both the mechanical and battery driven clocks evolved, the battery ones got better to the point that if it broke you changed the complete unit. Likewise watches did the same but both can be repaired by people who approach Horology with an open mind without preduice.  We all have our likes and dislikes bu I for one would never dismiss any technology because I don’t like it.   The mobile phone is a good example of modern technology at work as is the automotive industry. There buttons and switches in my car I don’t use because to me they are not nesessary but I still drive the car.
    • I haven't gone through all the reading of what it might be or not. The first thing I would do if nothing obvious stands out is replace the mainspring, you have to start at the source of the power. Nine times out of ten that is the problem.  
    • Haha. You're just in a wicked mood today John 😅
×
×
  • Create New...