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LOCATION:
We are located on the north end of Cheshire Bridge Road, one block south of the I-85 overpass,  between the cross streets of Sheridan Road and
Chantilly Road.

OPEN:
Monday-Friday

10:00 AM - 4:00 PM


Saturdays

10:00 AM - 2:00 PM

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Clock Repair in Atlanta

REGULATING A PENDULUM CLOCK 



An antique regulator pendulum clock.Regulation or the act of adjusting the rate of a clock is a simple series of repeated steps until the desired affect is achieved. This is accomplished by governing the location of the center of gravity along the length of the pendulum.

While many factors may affect the timekeeping rate of your clock, none will as much as changes in the ambient temperature of its environment, assuming the mechanics are in good working order as excessive friction from any source can have an adverse effect on the time keeping ability of the movement. Every moving part must be good condition and properly lubricated so the geartrain to operate as freely as possible. Friction leads to wear which is your clocks number one enemy.

Once you have observed a change in timekeeping over the course of several days it is time to begin the regulation procedure. Keep a pad and pen handy for recording notes, include the starting error and all adjustments you make as this will greatly assist the process. Remember to use a rate of error that is consistent such as minutes or seconds per 24 hours, and to use the same time source for making all of your comparisons.

Adjusting the pendulum shorter will cause your clock to run faster while lengthening it causes it to run slower or simply put "speedup, slowdown".

Pendulum regulation diagram.Look for the rating nut at the base of the pendulum which is what raised or lowers the pendulum disk or bob. Remember that the pendulum disk may become wedged against the rod, especially in the case of a wooden stick and some help may be needed. Turning the rating nut without affecting the disk has no bearing on timekeeping

By turning the rating nut to the right the disk will raise, which will make the clock faster while turning it left will lower the disk and make the clock slower. The rule of thumb is 1 turn of the regulating nut equals 1 minute per 24 hours, but your results may prove different and that is what makes the note keeping important to your success. By recording your actions 3 or 4 daily sessions is normally all that is needed. You should not try or expect to correct the error in one session, but rather try to split the difference by half each session, slowly sneaking up on the error without over shooting or see-sawing back and forth.

Sample of regulation notes:

Date Correct Time Incorrect Time +/- Error Correction
10/10 12:00 PM 12:07 PM 7.0 min. 4 turns left
10/11 12:00 PM 12:04 PM 4.0 min. 2 turns left
10/12 12:00 PM 12:02 PM 2.0 min. 1 turn left
10/13 12:00 PM 12:01 PM 1.0 min. 1/2 turn left
10/14 12:00 PM 12:00 PM 0.0 min.  

We repair all types of clock movements.

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10% OFF new service for any clock or watch repair or in-home service call for grandfather clocks. 
 
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Remember to maintain your clock.
It needs to be
 oiled and cleaned regularly to last.

We offer a complete selection of winding cranks and keys.

Chalet-style cuckoo clock.
We service cuckoo clocks.

All repairs guaranteed for 6 months on parts and workmanship.

We accept 
checks, cash, MasterCard and Visa

 

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