Ingraham clock keys

Discussion in 'General Clock Discussions' started by Organist, Jun 24, 2019.

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  1. Organist

    Organist Registered User
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    Aug 29, 2010
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    Hi,

    I'm curious. Is there any particular reason why the only Ingraham style clock keys available are #6 when the Ingraham I have takes a #7?

    Thanks,
    Mike
     
  2. tracerjack

    tracerjack Registered User
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    Jun 6, 2016
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    Just to be clear, American sized keys #6 and #7?
     
  3. rmarkowitz1_cee4a1

    rmarkowitz1_cee4a1 Registered User
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    Nov 26, 2009
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    My son, that is one of the Great Mysteries of Life!

    RM
     
  4. Willie X

    Willie X Registered User

    Feb 9, 2008
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    Funny, everyone wants a clear cut defenative answer to there clock questions but in reality about all we can do from a distance is generalize.

    Like: the majority of American clocks use a #6 key. Some used a #4, 5 & 7. Quite a few will need something in between, or the winding square will need to be carefully dressed up a bit to use a slightly 'to tight' key.

    WIllie X
     
    Jim1970 and Time After Time like this.
  5. Uhralt

    Uhralt Registered User
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    Sep 4, 2008
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    I noticed that frequently even keys that should fit according to the dimensions or the arbor square, in reality don't. Looking at the inside of the keys' square if found the there were residues from the broaching process or sometimes even incomplete broaching (too shallow). in these cases I used a square needle file to clean up the inside of the key until a had a perfect fit. Tedious but worth the effort.

    Uhralt
     
  6. shutterbug

    shutterbug Moderator
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    Oct 19, 2005
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    If you buy the "make your own" key parts, you can come with one that works well. I've never found a way to get them nice and tight without solder though.
     
  7. Willie X

    Willie X Registered User

    Feb 9, 2008
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    FYI,

    Merritt's P-3 series of great American made keys has changed.

    They now have a slightly longer shank (which is good) but this is offset by a thinner wing with larger holes and sharp edges.

    These keys now come in a thin plastic wrapper and I suspect they are coming from China ... sad.

    Willie X
     

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