Flip clock

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Clock of the 70s. Scheme of flip clock mechanism

Flap clock - a kind of timer using the flap mechanism.

History of clocks

The first flap clock was made in 1903 under the name Plato clock and was patented by Eugene L. Fitch in New York, patent number # 733,180. But the first clock model was sold by Mr. Conrad Hubert, president of The American Electrical Novelty and Manufacturing Company in 1904, under the name of a 40,000-plate plate. Principle of operation

In the first models, the flaps were driven by a spring, and the gear shifted the flaps at appropriate intervals. The clamps are usually held by a metal stem. Today springs are replaced by step motors. Occurrence in movies

Flap clocks can be found in many movie productions such as Lost or Groundhog Day.

wiki

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