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Monthly Archives: September 2014
Seth Thomas clocks: general information on repair
SETH THOMAS CLOCKS The Seth Thomas clock company has made millions of clocks, many of which have 2 mainsprings , two gear trains ,and one count wheel. Most of these types of mechanism have a wire lock arm system which … Continue reading
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Levers, count arms, lift levers
levers: Levers that are attached to sleeves that ride on shafts should not be oiled in the same way that pivots and/or mainsprings are oiled, and/or lubricated; particularly those levers that depend on gravity to operate. The reason for this … Continue reading
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Repivoting procedures used in clock repair
REPIVOTING: Repivoting skills are a must. The only way to become proficient at this is practice; lots of practice. Accuracy to within .001in. Is absolutely necessary if repivoting jobs in clock repair are to be done properly. With the piece … Continue reading
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Clock Mechanism rebushing procedures
BUSHINGS: Bronze bushings will outlast brass in most cases. Be sure to check for wear that does not show: that is , wear underneath the oil cup. Before pressing in a new bushing be absolutely sure that the hole is … Continue reading
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Hints on cleaning clock mechanisms
In my opinion ultrasonic cleaning machines are the best way to clean clock mechanisms, if it is understood how they work, and what they do to metal. If petroleum based cleaners are to be used , it is absolutely imperative … Continue reading
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Working With metals used in clock repair and tools needed
METALS: Brass: Brass is an alloy of copper, lead, tin, and zinc. If brass gets hot it will get softer according to how hot it gets. It is important to remember this when soldering brass parts ; do not get … Continue reading
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Suggested Tools Used in clock repair
GENERAL INFORMATION (TOOLS) There is a countersink tool that you will inevitably need. Actually a set of them will probably be needed . PICTURE These are available from various tool manufacturers ; however it will probably be necessary to make … Continue reading
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Sessions No. 706 Eight Day (repair notes)
There is a mantle clock made by Sessions that is a time only clock ; but looks like a time and strike unit in every way except there is only one place to wind the clock. The clock says No. … Continue reading
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Junghans westminster chime (repair notes)
The Junghans w/c mechanism return spring on the trip; it is usually brass.
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Seth Thomas A 200 (repair notes)
Regulation on Seth Thomas A— 200 series movement : left for slower , right for faster 4 1/3 minutes per day = 1 turn. The Kieninger strike hammer support spring is .0075in. thick and .200in. wide. These are used on … Continue reading
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