Rating
Rating the clock means adjusting the time keeping so the clock neither gains nor loses time while it is running. This is done by raising or lowering the pendulum bob using the rating nut on the bottom of the pendulum. Stop the pendulum to make all adjustments and then gently start the pendulum swinging when done. Minimize the amount of contact with the polished brass since the oils on a person’s hands will leave dark splotches. Touch the edges when at all possible or use a rag over the hand. Rotating the nut to the right speeds up the clock by raising the bob. Rotating the nut to the left slows the clock by lowering the bob. One complete revolution of the rating nut will change the time keeping by one minute per day. It is important to know how long the clock has run without being reset before making any changes to the rate. If the clock is seven minutes off in one week, it will be necessary to make one complete turn of the rating nut. If it is seven minutes off in one month, ¼ of a turn is all that is necessary!
1 complete turn = 1 minute per day rate change
Cleaning
All cleaning of the mechanism (movement) should be done by a professional. It is recommended to have the movement serviced every
The glass may be cleaned on the outside with the usual care given to prevent soaking the wood. The inside of the lower glass shouldn’t be cleaned unless absolutely necessary. The gold leaf lettering is very delicate and could be wiped away with nothing more than Windex. If it is necessary to clean the lower inside glass, spray the cleaning solution on a cloth rather than directly on the glass and avoid the lettering during the cleaning process. The upper glass may be cleaned on the inside using the same care as the outside with the exception that time be given to allow the fumes to dissipate so they are not trapped in the case with the movement. Ammonia will break down the oils causing them to fail.
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