Orbiting Masses System Eliminates Escapement for Continuous Timekeeping
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Solution Overview
Problem
Mechanical clocks and watches rely on complex and inefficient escapements for timekeeping, which are prone to intermittent motion and noise, limiting their accuracy and efficiency.
Innovation Solution
The introduction of an orbiting masses system that eliminates or simplifies the escapement mechanism by using isotropic harmonic oscillators, which provide a continuous and efficient timekeeping solution by replacing the balance wheel and spiral spring with a crank mechanism, allowing for continuous energy transfer without the need for intermittent motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If traditional escapement mechanisms are used in mechanical clocks and watches, then timekeeping function is achieved, but efficiency is limited to barely 40% and mechanical complexity increases
Solution Approach 1:
The patent extracts and eliminates the escapement mechanism from the timekeeping system, replacing it with a free oscillating harmonic oscillator (balance wheel and spiral spring) that operates without intermittent engagement. This removal of the escapement component directly reduces mechanical complexity and eliminates the energy losses associated with impact forces and intermittent motion, achieving continuous smooth operation at significantly higher efficiency
Solution Approach 2:
The invention implements continuous useful action by enabling the balance wheel to oscillate continuously without stopping or intermittent engagement. The spiral spring provides continuous restoring force, and the amplitude regulator maintains steady oscillation amplitude without the stop-start cycle inherent in escapement mechanisms. This continuous operation eliminates wasteful acceleration from rest and impact noise, maintaining high efficiency while simplifying the mechanical structure
2Measurement precision
If escapement mechanisms are used for timekeeping, then time measurement is achieved, but intermittent motion causes noise and reduces accuracy
Solution Approach 1:
The patent implements continuous oscillatory motion of the balance wheel without intermittent stopping and restarting. The spiral spring continuously restores the balance wheel to its equilibrium position, creating smooth periodic motion. This continuity eliminates the impact forces and noise generated by escapement mechanisms while maintaining precise timekeeping through consistent oscillation amplitude regulated by the amplitude regulator device
3Duration of action of stationary object
If escapement mechanisms are used to maintain oscillation, then oscillation continuity is achieved, but the system requires complex and delicate components
Solution Approach 1:
The patent removes the escapement mechanism entirely from the system, replacing it with a free oscillating harmonic oscillator where the balance wheel and spiral spring work together without intermittent engagement. This extraction eliminates the complex and delicate escapement components while maintaining continuous oscillation through the natural harmonic motion of the spring-mass system, regulated only by a simple amplitude regulator
Solution Approach 2:
The balance wheel-spiral spring system is self-sustaining through its inherent harmonic oscillation. The spiral spring automatically restores the balance wheel to equilibrium without external intervention or complex control mechanisms. The amplitude regulator provides simple feedback to maintain steady amplitude, allowing the system to self-regulate and maintain continuous oscillation with minimal mechanical complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances the efficiency and accuracy of timekeeping by eliminating the inefficiencies of traditional escapements, achieving higher precision and reduced mechanical complexity, while being insensitive to gravity and shocks, thus improving chronometric precision.
Implementation Method 1
the balance wheel - spiral spring by Huygens and Hooke in about 1675
Implementation Method 2
spiral spring
Implementation Method 3
isotropic harmonic oscillators, which provide a continuous and efficient timekeeping solution
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
The mechanical isotropic harmonic oscillator comprises at least a two degrees of freedom linkage supporting an orbiting mass with respect to a fixed base with springs having isotropic and linear restoring force properties wherein the mass has a tilting motion. The oscillator may be used in a timekeeper, such as a watch.