Theory of Machine
The maximum fluctuation of energy is the

Sum of the maximum and minimum energies
Ratio of the mean resisting torque to the work-done per cycle
Variations of energy above and below the mean resisting torque line
Difference between the maximum and minimum energies

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Theory of Machine
Oldham's coupling is the

Third inversion of slider crank chain
Second inversion of double slider crank chain
Second inversion of single slider crank chain
Third inversion of double slider crank chain

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