Theory of Machine
A completely constrained motion can be transmitted with.

3 links with pin joints
4 links with pin joints
1 link with pin joints
2 links with pin joints

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Theory of Machine
In a cone pulley, if the sum of radii of the pulleys on the driving and driven shafts is constant, then

The drive is recommended depending upon the torque transmitted
Both open belt drive and crossed belt drive is recommended
Crossed belt drive is recommended
Open belt drive is recommended

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