Strange Information Request

Discussion in 'Clock Construction' started by Ed Schmitt, Sep 21, 2013.

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  1. Ed Schmitt

    Ed Schmitt Registered User
    NAWCC Member

    Aug 30, 2003
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    CRNA retired
    Towanda, PA
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    Hello - I have a strange request for information on building a large clock. I have a store owner who wants to build a large clock to put on the side of his store. He wants to make the hands himself. The problem is that he wanted hands up to 10 feet long. I told him that he would have to reduce the size by at least 50%. He is looking for a way to power such a movement. I told him that it would be easier to put a street clock in front of his store. So I'm just checking to see what those on the message board would have to say about such an endeavor. I'll pass on any information you supply. Thanks

    Ed Schmitt
    NAWCC 150012
    Shadows of Times Past
     
  2. Jeff Salmon

    Jeff Salmon Registered User
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    Apr 11, 2002
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    Empire clock used to have access to large electric motors and gear sets for public clocks. I don't know where they got them. They are shown in a catalog I have.
     
  3. doug sinclair

    doug sinclair Registered User

    Aug 27, 2000
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    A rule of thumb for tower clocks and street clocks that is preferred by some, is one foot of dial diameter for every 10 feet of elevation of the clock dial. That would mean 100 feet of elevation, if you observe this proportion.
     
  4. Tinker Dwight

    Tinker Dwight Registered User

    Oct 11, 2010
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    Calif. USA
    If there was room, it could still be done.
    You could have a counter balance behind the dial
    to relieve some of the load ( might over balance
    some to account for rainy days ).
    Use a heave geared motor to drive it with a cam
    that would open every minute. A couple contactors
    and one of the clock pulse circuits and you have a
    clock. ( needs additional gears for the hour hand. )
    Just my thoughts.
    Tinker Dwight
     
  5. Ed Schmitt

    Ed Schmitt Registered User
    NAWCC Member

    Aug 30, 2003
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    CRNA retired
    Towanda, PA
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    Thanks for the responses. The individual who wants to build the clock has a 30' X 30' wall he want to have the clock built against. I will be talking with him later this week, and relay all the information everyone has given me. I'm still trying to get him to put a street clock in front of his store. Keep your suggestions coming.

    Ed
     

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