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Huygens' maintaining power in use. The weight drive used by Christiaan Huygens in his early clocks acts as a maintaining power. In this layout, the weight which drives the clock is carried on a pulley and the cord (or chain) supporting the weight is wrapped around the main driving wheel on one side and the rewinding wheel on the other.
Cox's timepiece is a clock developed in the 1760s by James Cox. It was developed in collaboration with John Joseph Merlin (with whom Cox also worked on developing automata ). Cox claimed that his design was a true perpetual motion machine , but as the device is powered from changes in atmospheric pressure via a mercury barometer , this is not ...
In striking clocks, the striking train is a gear train that moves a hammer to strike the hours on a gong. It is usually driven by a separate but identical power source to the going train. In antique clocks, to save costs, it was often identical to the going train, and mounted parallel to it on the left side when facing the front of the clock. [11]
The torsion pendulum clock was first invented and patented by American Aaron Crane in 1841. [4] He made clocks that would run up to one year on a winding. He also made precision astronomical regulator clocks based on the torsion pendulum, but only four were sold. The German Anton Harder apparently independently invented and patented the torsion ...
An uncoiled modern watch mainspring. Clock mainspring A pendulum wall clock movement showing the two mainsprings which power it. This is a striking clock which sounds the hours on a chime; one of the springs powers the timekeeping gear train while the other powers the striking train
File:Pond self-winding electric clock by Chesters H. Pond, Brooklyn, New York, United States, invented 1881. File:Clock with Hipp pendulum (an electric driven clock with Hipp butterfly escapement) File:'Pond' electric clock (movement only, no dial), by Self Winding Clock Company, New York, United States, 1905-1913.
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Ruhla alarm clock b. Winding and setting In order to function as time keepers, and to prevent damage to clockwork, clocks must be regularly wound. An established winding schedule eliminates the threat of over-winding."Traditionally, the job of winding the clocks was given to an horologist or a trained individual.
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