Smith Enfield Time and Strike Verge question

Discussion in 'Clock Repair' started by THTanner, Jun 12, 2019.

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  1. THTanner

    THTanner Registered User
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    Jul 3, 2016
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    This is a Smith Enfield time and strike mantle clock movement.

    It appears that the verge has been filed in the past to remove the usual groove wear. In that process it looks like they made an angled face that is sloped a bit steeper than what I usually see on a verge like this.

    Does anyone know if that small angled area at the end is supposed to be there on an Enfield, or should it be flat all the way to the tip?

    thanks

    IMG_3858.JPG IMG_3871.JPG IMG_3872.JPG IMG_3873.JPG
     
  2. bruce linde

    bruce linde Technical Admin
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    Nov 13, 2011
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    my gut reaction to that first photo:

    asdfasdf.jpg

    and then see what you've got, and how it runs.

    :)
     
  3. THTanner

    THTanner Registered User
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    LOL - that is how it came in - it is totally apart and cleaned - the face on the verge is the only issue left. There is some of the old groove still on the flat part and a new groove cut into the angle that I don't think is supposed to be there.
     
  4. bruce linde

    bruce linde Technical Admin
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    can't see the verge/pallets interaction without video, but... any way to move the escape wheel slightly to avoid the ruts?
     
  5. THTanner

    THTanner Registered User
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    It could be moved a bit, but the little slope at the end goes all the way across, so if that is not correct then moving the EW does not really solve the issue. I would be inclined to try that except that the final slope cut is not very precise and looks like a bad file job to cut out the old groove. It also is quite soft, so I think it was annealed then not hardened again. I have never seen a verge shaped like this so I suspect it is not correct. A rough measure of the final slope is about 20 degrees from the flat part.

    I think I will proceed to flatten all the way to the end to take out the groove and see how it runs. I can bend that end of the verge a little if it looks like it needs a bit of an angle there. If it runs well I will finish polish and re-harden. I think the main effect will be on the amplitude of the pendulum swing once it is set to the proper depth.
     
  6. chrisuk

    chrisuk Registered User
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    Sep 4, 2010
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    Enfield pallets look like this, I've repaired many Enfield/Smiths clocks.
    Enfield-pallets-1(web).jpg
    Enfield-pallets-2(web).jpg
    Hope this helps.
    Chris
     
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  7. shutterbug

    shutterbug Moderator
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    The sharp angle back cut on the entrance pallet won't hurt anything. You want a sharp drop off, and the angle isn't very important. The grooves can be an issue. After removing them, the pallets need a bright polish.
     
  8. THTanner

    THTanner Registered User
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    thanks - that is what I am aiming for -


    any special issues or advice on hardening? I usually get to a dull red then quench and only worry about the contact area
     
  9. shutterbug

    shutterbug Moderator
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    I think that will work for pallets. It will be super hard though.
     

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