adjust hammer heads

Discussion in 'Clock Repair' started by Bruce Barnes, Sep 13, 2017.

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  1. Bruce Barnes

    Bruce Barnes Registered User
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    Mar 20, 2004
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    Hi,
    I have a New Haven Renaissance T,S and Westminster chime and the sound is almost indistinguishable. The hammer heads have an adjusting nut above the head that secures it to the strike rod.The felt pads are ok just virtually no sound, save short of removing the pads would an adjustment of the heads forward or aft of their present position increase the sound. The lift is fine just soft sound.
    Any suggestions?
    Thanks,
    Bruce Barnes
     
  2. roughbarked

    roughbarked Registered User

    Dec 2, 2016
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    #2 roughbarked, Sep 13, 2017
    Last edited: Sep 13, 2017
    It isn't always the hammers and moving them along the rods isn't always a solution. It is about how the hammers hit and this can be altered in more than one way. It can also be about the gongs they strike and how they are mounted. I had one yesterday where the customer said it doesn't strike properly. I moved the gong so that it only touched the case where it was mounted. She said.. "beautiful".
     
  3. Willie X

    Willie X Registered User

    Feb 9, 2008
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    The hammer head tips aren't usually made of felt. Might be a good idea to remove the movement and check this out. Normally hammet heads are made of leather.

    The 'at rest' position of each hammer should be about 1/8" above the rod.

    A good photo of what you actually have there is always helpful.

    Willie X
     
  4. roughbarked

    roughbarked Registered User

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    I replaced some old hard leather in a Smiths Enfield with a piece of nylon from a quartz clock setter. It dongs as well as it ever did now.
     
  5. Bruce Barnes

    Bruce Barnes Registered User
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    Thanks to all, the covering is leather, and they strike chime rods and play the 1/4 1/2 3/4 and the hour.The rod has enough space for movement of approx. 1/2 inch.
     
  6. Willie X

    Willie X Registered User

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    The chime rods aren't normally moved as part of the adjustment. But if the chime rod's block is loose, it needs to be tightened. The hammers usually strike the rods at about 3/4" to 1" from the iron block.

    Willie X
     
  7. Bruce Barnes

    Bruce Barnes Registered User
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    I wasn't contemplating adjusting the chime rods but rather the hammer heads along the shaft that holds the hammer heads..............thanks to all for your help.I also noticed someone and place some household insulation in the clock as well. methinks someone, at some time, did not or was not a "fan" of the percussion.
    Bruce
     
  8. harold bain

    harold bain Forums Administrator
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    You may need to adjust the top rods so the hammer rods have maximum raise and drop.
     
  9. roughbarked

    roughbarked Registered User

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    Sometimes adjusting the hammer head location can help. Particularly if they lie almost parallel to the rods.

    The insulation was yes an attempt to quieten the noise when in reality they don't have to wind the chime and strike up.

    - - - Updated - - -

    Yes. it is more often the case.
     
  10. Bruce Barnes

    Bruce Barnes Registered User
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    Ah ha, so we are talking of raising the lift rods, but if you do thusly, then the lower rods will have to be adjusted to contemplate for the new lift.............hmmmmmmmmmmmm?
    maybe solving one and creating another.
    Bruce
     
  11. BLKBEARD

    BLKBEARD Registered User
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    I just replaced a missing hammer head insert with leather. The leather I believe is too soft resulting in a very soft strike. I'm going to paint the leather with shellac, locktite or wood glue to stiffen it. If that doesn't work i'll turn down a wood dowel for an insert and try that. Right now it has a nice tone, but unless you mute the TV, you can't hear it.
     
  12. Bruce Barnes

    Bruce Barnes Registered User
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    Exactly !! maybe adjusted to be a bedroom clock. ?quien sabe?
     
  13. Willie X

    Willie X Registered User

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    A round NH chimer does not have a loud sound. It has a nice sound but not very loud. So you may be expecting something that this little clock won't be able to deliver.
    Willie X
     
  14. BLKBEARD

    BLKBEARD Registered User
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    I soaked the leather insert on my hammer with crazy glue.

    It sounds much better now. At least I can hear it over the TV. It was missing the leather, and just had the brass hammer hitting the gong coil.
    Sounded kinda tinnie. Then I made a leather for it. Sounded nice but way too soft.

    Now I wish it was a bit louder, but I think this is as good as its gonna get.
     
  15. kinsler33

    kinsler33 Registered User

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    I once replaced the missing leather hammer pad with a piece of string-trimmer line that I doubled over and shoved into the cavity in the hammer. Once trimmed off to about an eighth of an inch, it sounded splendid and I've used the same trick since, since hammers aren't always so removable on old American clocks. The leather from Timesavers is way too soft, and I didn't have much luck trying to harden it.

    I have one customer who is hard of hearing, so after fooling with the hammer drop distance, etc., I replaced the plastic-faced hammers in her floating-balance carriage clock with solid brass ones from Timesavers. The sound is surprisingly civilized and not at all harsh.

    M Kinsler
     
  16. gocush

    gocush Registered User

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    Bruce, I like your Emiliano Zapata by-line. Do you speak Spanish?

    Here's my last year Halloween costume with mi nieto. I'm afraid his mom didn't like the idea of him teething on my live rounds of lead !!!! No humor, I guess.

    [​IMG]
     
  17. Bruce Barnes

    Bruce Barnes Registered User
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    soy un norteno viejo y mi espanol es muy pobre..............pero Viva la Raza !!
     
  18. bangster

    bangster Super Moderator
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    No tan pobre!
     
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