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US 4,050,236 AGranted
Clock having ornamental pendulum with adjustable period
AssigneeSpartus Corporation
InventorChristian M. J. Jauch
Life of this patent
Estimating the term…
Abstract
A clock has an ornamental pendulum which serves an aesthetic function but does not control the clock mechanism. The pendulum is mounted for free swinging movement on an oscillating shaft in such a manner that, when the pendulum swings in synchronism with the oscillating shaft, the pendulum will be driven by the shaft, but, when the pendulum swings out of synchronism with the oscillating shaft, the pendulum will eventually stop swinging. Adjusting structure is provided to impart to the pendulum a natural period of swing which is in synchronism with the oscillating shaft.
Claims2
In a clock:
- a shaft;
- a pendulum having a bob;
- means for oscillating said shaft to and fro about its axis and for controlling the speed of oscillation of said shaft, said controlling means being independent of said pendulum;
- means, comprising bushing means fixed to said pendulum and having a loose friction fit on said shaft, mounting said pendulum on said shaft for free swinging movement of said pendulum in relation to said shaft;
- said mounting means including means for imparting a driving force from said oscillating shaft to said pendulum, to provide continuous, uninterrupted swinging of the pendulum, when the shaft and pendulum oscillate in synchronism;
- said loose friction fit between said bushing means and said shaft being the sole driving connection between said shaft and said bushing means and pendulum;
- and adjusting means for adjusting the period of said free swinging pendulum, to synchronize said period with the oscillation of said shaft, without changing the distance between the axis of said shaft and the bob of said pendulum.
4 more elements
Dependencies are inferred from the claim text.