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  1. #1

    Default German Grandfather Clock

    I have inherited a grandfather clock which my parents purchased in Germany in the 1950's. The DRP No. is 234626. There is also a four digit number 2186 below the DRP number. The DRP No. I have found dates the patent to 1910 or 1911. Can someone help identify the specific date and the patent information? Note there are crossed arrows above the DRP No. Does anyone know the meaning of the arrows?

  2. #2
    Registered User George Nelson's Avatar
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    Default Re: German Grandfather Clock

    Hi,

    Hi, Malcolm9517,

    Welcome to the Message Boards!

    The crossed arrows are the trademark of the Hamburg American Clock Company. Pictures of the clock in question would be most helpful in providing you with more information.

    Happy Easter,

    George
    Last edited by George Nelson; 04-16-2017 at 02:01 PM.

  3. #3
    Registered User KurtinSA's Avatar
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    Default Re: German Grandfather Clock

    Quote Originally Posted by George Nelson View Post
    The crossed arrows are the trademark of the Hamburg American Clock Company.
    Fixed that for you!!

    Kurt

  4. #4
    Registered User George Nelson's Avatar
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    Default Re: German Grandfather Clock (By: KurtinSA)

    Thanks, Kurt! I'm getting REALLY old! Glad someone is watching out for me. Now, what if I need help crossing the street?

    Warmest regards,

    George

  5. #5

    Default Re: German Grandfather Clock (By: George Nelson)

    Thanks George and Kurt for the quick responses. I shall send pics once I figure out how to do that in a reply. I can't for the moment figure that out.

  6. #6
    Registered User George Nelson's Avatar
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    Default Re: German Grandfather Clock (By: Malcolm9517)

    Hi, Malcolm,

    Simply use the small white camera icon on the toolbar. It is relatively self-explanatory. Looking forward to the pics!

    George

  7. #7

    Default Re: German Grandfather Clock (By: Malcolm9517)

    Will get on the PC. Right now I'm on iPhone and not seeing the white camera icon. Will come back.

  8. #8
    Registered User tarant's Avatar
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    Default Re: German Grandfather Clock

    Here's the patent. Concerns regulation of the hammers bounce/strike power.Click image for larger version. 

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ID:	340485
    Regards
    Piotr

  9. #9

    Default Re: German Grandfather Clock (By: tarant)

    Thank you so much tarant. As promised George and Kurt here are the pics of the clock. Excuse the ladder and clamps but I had to improvise on getting the clock going again as the case is still at my mother's house.
    Click image for larger version. 

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ID:	340517.

    I would also like to get a part for this clock. the picture below shows the broken part. One of the thin metal "foils" from which the pendulum is suspended is broken. Does anyone know where I can pick up a replacement?
    Click image for larger version. 

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ID:	340518Click image for larger version. 

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    Last edited by Malcolm9517; 04-17-2017 at 07:49 AM.

  10. #10

    Default Re: German Grandfather Clock (By: Malcolm9517)

    These folks should be able to help you get the suspension spring you need.

    http://timesavers.com/

    You might want to measure the spring you have before looking for another.

  11. #11

    Default Re: German Grandfather Clock

    The part you are referring to is the suspension spring. You will have to replace the whole spring, not just one of the 'foils' - the suspension spring is supplied as a finished piece.

    You can get a new one from any of the clock material suppliers (for instance Timesavers in US) and I am sure there are similar suppliers in Canada (Perrins?). Also you could unpin the spring from the place where it is attached at the top and take it to a local clockmaker who might very well have a replacement suspension spring for you. Most clockmakers have a wide selection of suspension springs on hand.

    Hope this helps.

    JTD

    PS Upstateny beat me to the send key!

  12. #12

    Default Re: German Grandfather Clock (By: JTD)


  13. #13
    Registered User George Nelson's Avatar
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    Default Re: German Grandfather Clock

    Malcolm9517,

    Thanks for the pictures- a very nice clock indeed! I love the design of the weight shells...

    As said above, the suspension spring is a no-worry, easy replacement. At this point, I would be careful in running it, as, depending upon the weight of the pendulum itself, there is a fair possibility of the other leaf of the spring coming loose, and the resulting crash to the floor of the pendulum could cause irreparable damage to the bob.

    A great inheritance to be sure!

    Best,

    George

  14. #14

    Default Re: German Grandfather Clock (By: upstateny)

    Upstateny, I think that might well be the right spring, but don't forget Malcolm is in Canada. Not sure, but it might work out rather expensive to import from US.

    H&W Perrin in Toronto sell the same springs (www.perrinwatchparts.com) which might be easier.

    And George, personally, I wouldn't run it at all with a half-broken suspension spring.

    JTD

  15. #15

    Default Re: German Grandfather Clock (By: Malcolm9517)

    I agree, it would be best to disconnect the pendulum until the new suspension spring is installed. Might be a good idea to order two or three springs and use the one that looks and fits the best. Older springs were usually thinner than ones offered today. Often you will need to use a thin shim at the side of the slot or slightly enlarge the hole in the spring for the top attachment. On old clocks always modify the new spring to fit without changing anything to do with the old clock.
    If you are lucky, the only thing you will need to do is readjust the rate a bit.
    Willie X
    Last edited by Willie X; 04-17-2017 at 12:07 PM.

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