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  1. #1
    Myers Park Clock Company
    Guest

    Default Self-Winding Clock Co. Model "F"

    I have a Model "F" in for repair and I am confused by the action of the center arbor. Both the sector piece and the boss retaining the center arbor pin raise the contact enough to make a connection and activate the magnets. The question is, should the boss make the contact, or should the contacts be adjusted so only the sector piece activates the magnets?

  2. #2
    Myers Park Clock Company
    Guest

    Default Self-Winding Clock Co. Model "F" (RE: Myers Park Clock Company)

    I have a Model "F" in for repair and I am confused by the action of the center arbor. Both the sector piece and the boss retaining the center arbor pin raise the contact enough to make a connection and activate the magnets. The question is, should the boss make the contact, or should the contacts be adjusted so only the sector piece activates the magnets?

  3. #3
    Registered User
    Join Date
    Sep 2004
    Location
    Marietta, Ga
    Posts
    337

    Default Self-Winding Clock Co. Model "F" (RE: Myers Park Clock Company)

    Myers Park Clock Company,

    You can find the reuired information on this web sitehttp://electric-clocks.com/SWCC/
    If I understand the question, the special cut sector should cause the contact to activate the magnets.
    Good luck
    To every thing there is a season, and a time to every purpose

  4. #4

    Default Self-Winding Clock Co. Model "F" (RE: Myers Park Clock Company)

    Your question is somewhat difficult to comprehend. So is the operation of the loose parts on the center arbor of the SWCC F movement.
    Frankly, despite the hundred year old writing style in "The Modern Clock," the explanation and illustrations of the F style winding cycle therein is one of the best.

    The contact sector piece with bushing and pin (Western Union definition) on the center arbor, usually a single lobe cam, raises the lower contact which is firmly and electrically attached to the rear plate. This lower contact makes contact with the upper insulated contact thus completing part of the grounded or common battery circuit to the wind electromagnets.

    The assembly sequence of the center arbor is the center wheel/mainspring cage, mainspring hub, mainspring, mainspring cover/wind wheel, center arbor pin, (critical length) knock-a-way piece and finally the cam or "contact sector piece."

    The mainspring must be "prewound" somewhat during assembly of the center arbor.
    H.J. (Les) Lesovsky, Alhambra California

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