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The cog wheel with ten pins is located at the end of the weight drum for the quarter train. The ten pins are spaced equally around the edge of the wheel. When the wheel turns, a pin pulls down two release levers that are connected by wires to the hammers of the quarter bells. When the pressure of the pin on the levers is released, they jump up sharply and the hammers strike the bells. |
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Copyright © 2011 State Hermitage Museum |
