Chronometry: Negus Break Circuit added to Isaiah Luken 8-Day Chronometer

Discussion in 'Chronometers' started by Ralph, Nov 8, 2015.

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  1. Ralph

    Ralph Registered User
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    Jan 22, 2002
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    A friend of mine showed me this recent chronometer acquisition today. He allowed me to take a couple of pictures of it that I thought would be of interest to fellow chronometer aficionados.

    It is signed Isaiah Luken, London No. 141. It is an 8 day model with issues. It was resprung and had a break circuit attachment applied in 1874.

    The chronicling of the upgrade on the bezel sight ring is special as well as the label pasted to the underside of the top lid.

    IMG_6837.jpg LukenNegus.JPG

    Isaiah Luken was a prominent and important Pennsylvania clockmaker and inventor who worked in Horsham and Philadelphia. He spent time in France and England, which may account for the London association on the chronometer dial.

    Spittler & Bailey's entry for Isaiah Luken reads as follows:

    "Lukens, Isaiah: Born 1778, died 1846. Horsham and Phila-
    delphia, Penn. Ca 1800-1837. Father Seneca Lukens, clock-
    maker. Visited France and England for 3 years and obtained
    work as a watchmaker; gained recognition for his methods of
    tempering steel. Returned to the U.S.A., established himself as
    town-clock and watchmaker machinist. Made his first tower
    clocks for the Hatboro Academy 1812, made State House clock
    replacement, Ca. 1828. Made clock 1820 for second U.S. Bank,
    Philadelphia (building later became U.S.Custom House).
    Interested in papermaking, mechanical inventions, science. Made
    an air rifle, 5 shot , that Lewis & Clark (1804-1806) took on their
    expedition to kill game up to the size of a deer."

    Ralph
     
  2. Paul Regan

    Paul Regan Registered User

    Mar 4, 2003
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    Thanks for posting Ralph. Interesting reading the break circuit instructions. I wonder where this chronometer has been! Is the damage to the case limited to the lid?
    Paul
     
  3. Ralph

    Ralph Registered User
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    Jan 22, 2002
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    The chronometer and its case need extensive work.

    Ralph
     

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