Theory of Machine
Klein's construction can be used to determine acceleration of various parts when the crank is at

Right angles to the link of the stroke
Inner dead centre
Outer dead centre
All of the listed here

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Theory of Machine
Oldham's coupling is the

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

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