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There is a ratchet between the fusee and its gear (not visible, inside the fusee) which prevents the fusee from turning the clock's wheel train backwards while it is being wound up. In quality watches and many later fusee movements there is also a maintaining power spring, to provide temporary force to keep the movement going while it is being ...
The quartz movement used is a low cost, mass produced, plastic mechanism of no decorative value. It is disguised within the clock’s body therefore skeleton design is expressed in the open form of the clock face. Modern skeleton wall clocks have no visible back-plate. The wall background can be seen between the numbers or framework.
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]
He financed the series of replica clocks (over 10,000 built in limited editions): from 1972 to 1980 ten types of replica clocks (including the Benjamin Franklin Clock, [14] Congreve Rolling Ball Clock, two reproductions of the historical Giovanni di Dondi clock (by Peter Haward), various skeleton clocks and the inclined Plane, Rack, and Rising ...
Anchor escapement clocks driven by a mainspring required a fusee to even out the force of the mainspring. It is a recoil escapement as mentioned above; the momentum of the pendulum pushes the escape wheel backward during part of the cycle. This causes extra wear to the movement, and applies varying force to the pendulum, causing inaccuracy.
In the three axis tourbillon movement, the 3rd (external) cage has a unique form which provides the possibility of using jewel bearings everywhere, instead of ball-bearings. This is a unique solution at this size and level of complication. [11] There are a few wrist and pocket watches that include the Triple Axis or Tri-Axial Tourbillon ...