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    NAbrams's Avatar
    NAbrams Posts: 4, Reputation: 1
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    #1

    Sep 28, 2010, 05:07 PM
    Seth Thomas ship's clock - resynchronize chime to time
    I have a key-wind Seth Thomas ship's clock. Time is set by turning the minute hand until the correct time is displayed. Doing this often screws up the chime sequence. How do I resynchronize the chimes with the time so that the correct number of chimes sound as they are supposed to at each quarter hour? E.g.: 12 o'clock = 8 bells. Thank you.
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    speedball1 Posts: 29,301, Reputation: 1939
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    #2

    Oct 12, 2010, 06:45 AM

    The ship’s bell is struck every half hour. A single stroke is struck a half hour after the beginning of each watch, at 12:30, 4:30, and 8:30 (both am and pm). An additional stroke is added at each tolling, every half hour, so that 8 bells is struck at the end of the watch. The interval between strikes is either one or two seconds, alternating. In the table below, the hyphen represents a 1-second interval and the long dash a 2-second interval.

    Number of
    Strikes When How struck
    1 12:30am 4:30am 8:30am 12:30pm 4:30pm 8:30pm B
    2 1:00 am 5:00am 9:00am 1:00pm 5:00pm 9:00pm B-B
    3 1:30am 5:30am 9:30am 1:30pm 5:30pm 9:30pm B-B—B
    4 2:00am 6:00am 10:00am 2:00pm 6:00pm 10:00pm B-B—B-B
    5 2:30am 6:30am 10:30am 2:30pm 6:30pm 10:30pm B-B—B-B—B
    6 3:00am 7:00am 11:00am 3:00pm 7:00pm 11:00pm B-B—B-B—B-B
    7 3:30am 7:30am 11:30am 3:30pm 7:30pm 11:30pm B-B—B-B—B-B—B
    8 4:00am 8:00am noon 4:00pm 8:00pm midnight B-B—B-B—B-B—B-B

    Ship’s bells are no longer rung on merchant ships, but the custom is maintained on passenger, training, and naval vessels.
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    NAbrams Posts: 4, Reputation: 1
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    #3

    Oct 12, 2010, 07:28 PM
    Comment on speedball1's post
    My problem is that the chime sequence is exactly one hour off. Meaning that at 1:00 it strikes 8x instead of twice; at 1:30 it strikes once instead of 3x. How do I resynchronize the chime to the time so that the sequencing is correct?
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    speedball1 Posts: 29,301, Reputation: 1939
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    #4

    Oct 13, 2010, 06:13 AM

    When I set my bulkhead ships clock ,( it doesn't chime, it rings a bell) I turn the minute hand until it rings. Then I keep backing up the minute hand causing it to ring until the correct bells are set to the correct time. Good luck, Tom

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