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About William J Perkins
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can respond to all questions regarding clock repair. (no quartz) specialize in museum quality restorations.

 
   

You are here:  Experts > Home/Garden > Home Appliances > Clocks, Watches > HERMLEMantle clock

Clocks, Watches - HERMLEMantle clock


Expert: William J Perkins - 10/30/2009

Question
QUESTION: I have chance to buy a Hermle mantle clock in a store ,it works and chimes great and I like the clock,but the seller knows nothing about clocks.Please tell me what the 3 winding holes are for also the small knob at the back of the clock that only turns slightly both ways. Thankyou for any help that you can give me.Frank Kitts Canada.

ANSWER: The winding holes are provided so that you can insert the winding key to wind the clock,thus, providing motive power.  You would wind the clock once a week.  It's a good idea to set a routine for this procedure , for example 12 noon each Saturday.  The knob on the back is the door latch.  It locks and unlocks the door so that you have access to the rear of the movement, when necessary.  Regards WJP

---------- FOLLOW-UP ----------

QUESTION: Thanks for your answer but I need a little more info please.I have three other clocks and they all have only two winding holes and I wondered what the third hole at the bottom is for,chimes, springs etc. I discovered the knob at the rear top is to have chimes on or off.thanks very much for taking the time to answer my questions.Frank Kitts

Answer
Lets go to basics.  The gears in a clock are combined in trains.  The most basic train is the time train.  These are the gears that drive the hands so that you can tell the time.  This train will always be in the middle.  Most clocks also strike the hour and sometimes the half hour.  This is called the strike train.  The strike train is most often to the right of the hands, as you face the clock.  Many clocks also chime, to announce the quarter hour.  This is called the chime train and is located to your right, from the hands, as you face the clock.  
Your clock is a three train clock, chime, time and strike.  As you face the clock the winding arbor for the strike train is located to left of the hands, the time train winding arbor is located below the hands and the chime train winding arbor to the right of the hands.  Regards WJP

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